Hey pal thanks a million for your words about charging in the description, you saved me a massive headache.

Great video as usual Joshua. Thank you so much for the contribution to our addiction.

Joshua, that's a TSA-will-hassle-my-ass lipo if I've ever seen one, lol.

@user-cx5no9oi2w

4 жыл бұрын

Believe it or not I've never been hassled by the TSA for batteries. But when I went through china they tasseled me a lot about batteries.

Any limitations on charging? I can imagine this setup requiring a balance charger. But my simple one, for example, still requires he main discharge leads connected. Would the converter cause any issues there?

Do you know the maximum input voltage for the attitude v5? I have an old 3s lipo that came with an rc truck and would like to use it on my goggles if they can handle it. I'm using rapidfire also.

Joshua, do you know if the regulator shuts down if the circuit is open at the output? Because permanently wiring it to the batteries, could potentially draw a a small amount of current and drain the batteries to an unwanted voltage over an extended period of time

Can you do this with a higher capacity like 2x 26650 Li-ion battery? Or will you end up with lots of capacity left over?

Might be a good idea to put a cap at the reg input. Apparently these regulators can have voltage spikes when power is applied. Not sure if the goggles can deal with such spikes. Either way it's a cheap and easy thing to add a cap.

can it be used in a 6vdc remote control? 4 pieces triple a's?

Hey Joshua, can you please post an updated link to the charger or mention the model or type of charger? Thanks! I'm just now getting around to making my own goggle pack

Thanks Bro! I couldnt figure out why the Sky Charger was crapping out!

@joshuabardwell, where is the link to the battery voltage indicator please?

While working on my 18650 pack for the FS HDO I was just thinking: Wouldn't it be smarter to build the voltage step-up into the goggles and include a voltage alarm as well? This would bring the following advantages: - Parts only needed once and not per battery pack - Audible Alarm to prevent over discharge (FS Alarm will not work due to step-up) - Main Battery Pack Cable can still be used for charging

Hi, I know this is an old video, I'd like to see how you charge this type of modded batter?

You mentioned you are powering your fan from the goggles vs the balance lead. Where are you feeding the power from? Thanks.

@willhopkins7707

7 жыл бұрын

Could you do a video how you powered your fan without the balance lead?

@JoshuaBardwell

7 жыл бұрын

I soldered a balance connector to the back of the main barrel connector so that whenever the main battery is plugged in, the fan is powered.

@GerbFPV

7 жыл бұрын

Yes please I'd like to see this as well.

@shortlytall7926

7 жыл бұрын

Would be cool to see how you've done that, I'm ^^^^ scared of breaking my goggles so I take all the guidance I can!

@JoshuaBardwell

7 жыл бұрын

Sorry to say, but I'm not cracking my goggles open just to show how it's done.

I know your not a fan of heat shrink but man I love the white color stuff for anything that has an LED. It shines right on through and you're not left with sticky residue from the tape if you need to take it apart.

Hi Joshua, did you checked how much current your buck converter drains without any load connected? I just checked a bigger step up converter I have and measured 0.3 mA (9v), no load. Its not much. About 200 mAh per month. It could damage you battery if you put it discharged in a drawer for a winter season :-/. I would consider some miniswitch if I would build somethink similar. P.S. thanks for the great youtube channel.

why not put a switch to turn the 9v on and off?

I recommend LG HG2 3000mAh/20A batteries, they are commonly used in electronic cigarettes and they are one of the best 18650.

@eric-janvandenbogaard9415

7 жыл бұрын

yes, correct, better than the Panasonic NCR type

So I realize there is a Fat Shark battery case now but I still wanted to enjoy a project...so here i am with two new handmade battery packs - one cannot be charged! I've wired up one with the suggested 9V step up (won't charge) and I've wired another without (it charges fine). I've tried two different smart chargers on the "stepped up" battery...both don't like it. How do you charge this thing with the step up board soldered in? Thanks!

@JoshuaBardwell

7 жыл бұрын

You can't charge through the main discharge lead when the step-up is present. Please read the video description.

The reason good step-ups are setup slightly high (typically .1v) is to account for wire resistance, so whatever you're feeding sees nominal voltage is slightly higher, even with longer/thinner leads than you should be using.

How about protected 18650? They are not down below a dangerous value.

do you have a link for the cell reader?

Could you add an XT60 off the top of the +/- directly connected to the battery and use that in combination with the balance leads to charge? Would that affect the step-up regulator?

@JoshuaBardwell

7 жыл бұрын

+Bretten Mickle yes, but what a mess that would be. At least use JST or something.

Hey Joshua, I just did that. I bought the *Matek Micro BEC 6-30V 5V/9V Adjustable* instead of the polulu. I did the bridge solder to adjust the power to 9v, like on the mateksys website. Before the mod: battery displaying 7.3v. Fatshark and the rapidfire powering up and not beeping After the mod: battery displaying 7.3v. Fatshark and the rapidfire powering up but *rapidfire is beeping* It's the rapidfire that is beeping because where I remove the module, the fatshark are powering up and not beeping. Any idea where would that come from?

@JoshuaBardwell

5 жыл бұрын

Is the RapidFire in low power mode? What is making it beep? Can you double check with a multimeter that the BEC is outputting 9v as expected?

@FRY_FPV

5 жыл бұрын

@@JoshuaBardwell so... I tried to measure the output of the furious fpv smartcase first on the input of the BEC and I haven't been lucky because I made a spark and now even without the BEC, there's no output from coming from the furious fpv smartcase. I guess I shorted the pdb board that comes with the smartcase. I have now disassemble the smartcase but all components look fine. The issue now is that the smartcase displays 0mah now on its little screen. I guess as a temporary solution, I can just remove the pdb that is refusing to output any amp and use the case as a standalone. argh, I'm so stupid to have touched it. I'm not used to a multimeter

a lot of people including myself charge these through both the power lead and the balance connector. with how you have yours set up using a pololu, can you still charge it via the power lead or does the pololu mess that up?

@JoshuaBardwell

7 жыл бұрын

You cannot charge through the main discharge lead with this mod. You have to charge through the balance lead using something like this: www.hobbyking.com/hobbyking/store/__7637__Turnigy_12v_2_3S_Basic_Balance_Charger.html

@marcusconner5251

7 жыл бұрын

Joshua Bardwell why not just solder on a power connector that bypasses the 9v reg like a jst. That is what I did. GREAT VIDEO. You have helped me a lot with your other videos.

@JoshuaBardwell

7 жыл бұрын

+Marcus Conner I never charge over the barrel Jac anyway so it doesn't affect me.

Yes I have done this but now I need a low voltage alarm because my flights are like 20min and the battery drops off real quick after 7v and my highest led is 7v. I have a custom built led panel.

Hi, I'm thinking of hooking the goggle with 2s lipo and the 9v popolu step up. My question is does it matter what capacity is my 2s? I want to get the 5000mah 2s lipo.. Would the current is too much for it to handle Or as long as i only use the 2s , it'll be ok?

@JoshuaBardwell

7 жыл бұрын

+eric nguyen current is a function of volts. Runtime is a function of capacity.

A question on the middle balance lead (the one you leave longer) - you state you solder it to the bottom -Ve where the +Ve of the other battery is jumpered - I assume if you have a better solder connection on the +Ve you could in theory solder it there as that is the point of connection from either direction??

@JoshuaBardwell

7 жыл бұрын

+luke Stanton it doesn't matter which cell you solder to as they are electrically connected. I use negative because it has a larger surface.

I geuss you could do this to the original fatshark batteries too?

Or you can get the thunder power fatshark lipo they are 2000 mah and run all day with LaForge at least for me. Has a skinny profile and is about 25 bucks. Best lipo to replace the fatshark battery.

@nickfessel2201

7 жыл бұрын

There's also a 4000mah version for 50 bucks: www.thunderpowerrc.com/Products/FPV-Adrenaline/TP4000-2SAGX

@AaronGutman

7 жыл бұрын

Do these have led power meter like the original (or this mod)?

@VIKFPV

7 жыл бұрын

+Aaron Gutman it doesn't have a battery led

@jimbmakin7975

6 жыл бұрын

or grab or make an even more efficient step-down regulator LiPo adapter cable. I use an old 3s 2200mAh turnigy lipo with mine and can use it to fly for multiple days without even having to charge. I notice when I do decide to throw it on my charger it rarely is at under 3.9-4.0v per cell. No lipo strapped to your face, but you do need a free pocket. I usually run the cable under my tx strap, under my shirt so it doesn't get caught on anything and it's pretty comfy and light on the face.

Joshua Bardweel , I'm having some problems with low voltage and Realacc, so I remembered this video of yours, and I'm thinking of using a XT60 in the pack and build a wire with a XT60 in one side and a Fatshark plug in the oder side, as an adapter, but install this step up in it, so it will be easier to charge with any XT60 and will have 9v to the googles! What do you think? is there any tiny low voltage alarm you recommend? thanks

@JoshuaBardwell

7 жыл бұрын

I honestly think it might be better to just build a 2nd battery and swap it out when the goggles start beeping. The trick with the 9v step up is clever, but it might be too clever if you know what i mean.

@cmtetaboaco

7 жыл бұрын

Joshua Bardwell Ues I understand, the problem is that under a certain voltage, the realacc module starts having some "interference" lines before the beep, so with this mod might solve the problem, I'm thinking to build this batteries with XT60 plugs, than I'll make a little adapter with this step up and a tiny low volt alarm in it but before the step up, so I'll be able to charge via a XT60 connector, will have the 9v and the alarm! Maybe this way I'll have good vídeo using all mha of my battery! how many mha/h does the google with a realacc module consumes? does this step up handle it? thanks

@JoshuaBardwell

7 жыл бұрын

The goggles pull about 600 to 650 mA with the DVR not running.

how about adding a charging lead? looks like that $4 charger cost about $11 with shipping and is one more thing to carry and store.

how do you like that double sided tape? I've had problems with it being weak and it hardens and crumbles after a while. but then again. it's soooo cheap

@JoshuaBardwell

7 жыл бұрын

+Patrick Donovan it's great bit it does dry out eventually.

Why is your balance connector wired so weird?

Hi! I did this mod to my batterypack. The step-up just gets sooo hot if i use the fan or recorder on my hd3s. I have the mod were i run the fan of my mainlead. Could it be because of wire thickness?

@JoshuaBardwell

5 жыл бұрын

Maybe the step-up is undersized for the current you are pulling.

I've been tempted to install a boost reg on the fan input only. I've read where folks said 3s kills the fan, but wondering if older fans were 5v? The fan on my HDO's says 12v and is rated ~2cfm. I tried ordering some 2.5cfm off of amazon and they pushed far less than the original. Probably just a bad brand. But I figure if I fed it a full 12v that it's rated for, it might actually do some good.

@rcrdps8144

5 жыл бұрын

Following up. I did this. It rocks. Today's humidity isn't astronomical, but at 67% ~6pm, it's fairly normal. My Fatshark HDO's did not fog up today. I put the 12v pololu inline with the one-connection fan mod. It's tucked inside the goggle right beside the bullet connector. If you don't like noisy fans, this isn't for you. If you don't like foggy goggles and live in the south,....

Why not just use a 3s LiPo? I have the Eachine One goggles which turned out to be a flop with the included battery. They would black out with no warning at 50yds or less when using a 200mw VTx. I hacked together the barrel plug to one of my "beginner" LiPos and it fixed the prob. I'm sure most of us have an extra 3s or two laying around. Also, why not pair it with a cheapo voltage beeper on the balance cable?

Surely you could just solder an additional JST connector on here as a secondary discharge lead that bypasses the 9v reg? Then you can charge using the JST and discharge via the 9v barrel connector.

Hey Josh, did the battery hack and put a switch in so I could use it in goggles and flick the switch so I can charge normally, the charging works great and get correct voltages when switching, however I have the True -D diversity and this goes on and off(blinking) when switched to the 9v do you know if this is normal or does this work on others but not True-D Diversity.

@JoshuaBardwell

7 жыл бұрын

+Malcolm Dickinson True-D should work on 9v.

@malcdickinson06

7 жыл бұрын

Joshua Bardwell the screen goes on and off, blinking, could that be a fault with the polulu, it's does get hot even within about a minute.

Tried this and I had issues twice. The regulator would heat so hard that the goggles would turn on and off repeatedly how can I fix that ? :(

Awesome job McGuyver :) Maybe a 3D printed case would have been a better finition though lol Thanks for sharing and have a great weekend

I’ve just done this hack and it works great, I put a little mini switch in to switch from the polulu voltage and the battery voltage so you can switch from using it in the goggles to charging it. Very happy!!!……….make sure you buy legitimate batteries. Attention!!!!! while the switch work and voltages are correct and can charge fine when switched to 7v on the Furious True-D my module is blinking on and off, maybe it work just on the other Diversity modules.

Does the Pololu pull any parasitic power while it's wired up? If so you may find yourself draining the batteries while you aren't using them. I'm not sure if they shutdown with no draw or not.

@JoshuaBardwell

7 жыл бұрын

It does. I've never had my batteries sit long enough without charging for it to be an issue.

@Jrod_FPV

7 жыл бұрын

would be easy to add a small switch between battery output and step up input.

@mrlazda

7 жыл бұрын

Most elegant solution is to add battery protection circuit and then you do not need to worry about over discharge/charge battery. They are extremely cheap (if you buy for example solution based on dw01, which work correctly).

@Jrod_FPV

7 жыл бұрын

Good call but I've never found a cheap easy solution. Can you share the link?

@mrlazda

7 жыл бұрын

quiljw01 Just type DW01 in search of your favorite Chinese supply site (I use aliexpress) and you will find lot of solutions in different form factor and pick one which most suitable for you (they all work same). DW01 based are cheapest solution for protection (they are for 1S so you will need 2 of them but they are so cheap that is not problem), or you can look for battery protection and you will find more solutions but price varies. DW01 disconnect cell on 3V (I prefer that it will cut on 2.7V, like some solutions from linear but that ICs cost 50 times more then DW01).

Joshua, you mentioned running your fan off the balance plug. Can you do a video on that please. I have an idea of how to do it but don't want to break my $500 goggles.

Hey Josh is it still all good to plug the balance connector into the fan

@JoshuaBardwell

7 жыл бұрын

Yes.

I did a video on this a while back. I did testing on my goggles with a bench supply (skyzone v1 and V4) Both of them don't start cutting out until 5.5v (V4 actually at 4.5v) so the mod isn't needed for those goggles. Don't own fatsharks so I can't test those but I assume you putting up this video means they do indeed cut out at 7v :)

What 16:9 camera would you recommend for racing? I am using Dominator V3s.

@JoshuaBardwell

7 жыл бұрын

All 16:9 cameras that I'm aware of have higher latency than 4:3 cameras, so I'm not sure I could recommend any of them as ideal for racing. It's only perhaps 45 ms of latency, compared to perhaps 20 ms of latency for an 1177. The only 16:9 camera I've flown is the Eagle, and it has some issues with lens flare and washed out image, which I think are due to the 16:9 lens, since the 4:3 version looks very good.

@JWKS2003

7 жыл бұрын

If I use a hs1177, how bad is the stretched screen?

@JoshuaBardwell

7 жыл бұрын

+JWKS2003 people say they don't notice it.

@JWKS2003

7 жыл бұрын

Is there a way I can see what it looks like stretched?

@jbonez0

7 жыл бұрын

I use the V3s and swapped my hs1177 with a Foxeer Monster. It is actually a pretty awesome setup and Ill use this camera with all my quads used with the V3s at 16:9

my understanding is it is dangerous to put unprotected in series. are they unprotected? I am reading up how to use 18650. I went to a web site to buy them. it has a warning saying do not use 2 or more unprotected in series. I am lost.

@JoshuaBardwell

7 жыл бұрын

+Jack Truong best to buy protected cells.

Joshua, Nice build. I did it but charger says connection break. Any suggestions? Dan

@JoshuaBardwell

7 жыл бұрын

Like it says in the video description: WARNING: If you do this hack, you CANNOT charge through your main discharge lead anymore. The reason is that the charger will think the battery is at 4.5 volts / cell and will refuse to charge it. You MUST charge ONLY through the balance lead. Here is the charger that I use to do that: www.hobbyking.com/hobbyking/store/__7637__Turnigy_12v_2_3S_Basic_Balance_Charger.html

I don't use this battery mod, but banggood has some _2.5V-30V Mini Digital Voltmeters_ that might work as well .. I mention as just a thought

My stock battery is about 2 months old and it's already puffed out and causing the sides of the enclosure to split. I don't think I'd be able to make one of these myself, so I'm just going to buy the Fatshark enclosure that accepts the 18650 batteries instead.

Hello Can i re-use the batteri checker from my old fatshark batteri?

@JoshuaBardwell

6 жыл бұрын

Yeah

Which Fatshark Goggles do you have, because my Dom V3's happily operate below 7v and will drain unprotected batteries down to below 3v a cell as I found out the hard way! (video proof on my channel) The only reason I can see to add this mod would be so that you don't have an hour and a half of them beeping at you, but then you have to use a slooow balance lead charger - so I would argue that adding a step up regulator is an improvement.

@JoshuaBardwell

7 жыл бұрын

HD2. The alarm starts beeping around 7.2 to 7.3 volts.

Brilliant! This battery pack is a great idea, makes me wounder why the manufacturer. Don't use high capacity battery's for there packs in the first place. This is my opinion but I would have used Panasonic 3400's

Is reliability of the Pololu a concern?

@JoshuaBardwell

7 жыл бұрын

+kenkamm not at all. They're bulletproof.

How fast do you charge this batteries? I read somewhere that we can charge at 1.6a. Is that right?

@BloodyJMF

7 жыл бұрын

You can charge every battery at 1C safely so given that you get a true 2200mah battery and these are in series so voltage doubles but mah stay the same (in parralel vice versa) you can charge them at 2.2A (in parallel 4.4a)

@le3dmax

7 жыл бұрын

Cool thanks. I wasn't sure because the manual says 1.6a. Thanks.

@roberteigenberger5064

7 жыл бұрын

LD Silva .5 C

@eric-janvandenbogaard9415

7 жыл бұрын

these 18650 are not lipo's , a normal charge is at 0.5C a fast charge is at 1C, only at 0.5C it gets it's full charge @ 100%. check for different 18650's each own data sheet, go for the original brands, like Panasonic, LG, Sony, etc..... avoid strange brands with "FIRE" in it's name.

When under load the voltage is sure to go to 9.0v

Jus build the same pack - well...almost. I've added a LiIon 2s protection PCB instead of the LED checker and added a JST lead (bypassing the reg) for charging

What about the step up converter permanently connected to the battery ? Wich means that you cant turn the converter off ...

@JoshuaBardwell

6 жыл бұрын

Yep. Parasitic draw will pull the battery down over time.

@Nothwarren

6 жыл бұрын

Joshua Bardwell time to add a switch !

As always, great vids. Do you have a way of knowing what exact type of plug that is. I'm hesitant to buy any cause I don't know what plug it is. Please help.🤙

@JoshuaBardwell

6 жыл бұрын

+Luisangel Corona what plug what is?

I'm in the process of building my first pack with the Panasonic 18650's and can't decide if I should do this mod or just build regularly. I don't like the fact that you can't charge it on a regular charger. What's everyone thoughts on which way to go?

@JoshuaBardwell

7 жыл бұрын

I've since gotten a little disenchanted with this mod, to be honest. The kicker is not getting a warning when the pack is about to die. Also, I killed a pack by over-discharging it using this mod. So my current approach is to buy protected cells (to prevent over-discharge) and just build an extra pack or two if I want more flight time.

@motmot2377

7 жыл бұрын

Thanks Joshua!! So are people not building these packs anymore? I bought two sets of the Panasonic batteries and all the supplies to build. Plus a few of the Polulo regulators because of this video. What are the protected packs you are talking about?

@JoshuaBardwell

7 жыл бұрын

I still am building my own 18650 packs, just not with the 9v step-up mod. Protected 18650 cells have a circuit on top of the actual cell that prevents over-charge, over-discharge, and over-current. If you were to plug a light bulb into the cell, the cell would shut down at 2.5 volts and not kill itself. If you were to short the cell, it wouldn't blow up. Protected cells are "button top" I believe, while non-protected cells are "flat top". Or maybe I have that backwards. Just search for "18650 Protected" and you'll get the right thing. Non-protected cells are commonly used for high-discharge applications like tobacco vaporizers. For low-discharge applications like FatShark goggles, protected cells are best.

@motmot2377

7 жыл бұрын

ok, I'll look into it. I guess I'm just disappointed because I bought a few of the 9v regulators and batteries to build these packs. I started to solder the 18650's last night, so I can't return them. If I solder the packs up along with the led battery checker from my fatshark lipo( just like the Rotor Riot video), will the goggles beep way before the battery is too low? Or can I just keep an eye on it with the led checker? I'd like to be able to at least use the 18650 packs that I have now if possible. Thanks!!

A lot of messing around. My concern is while the battery is disconnected the 9v booster is still running, albeit minimal current draw. It will eventually take the batteries down to 2.5v where it shuts down as per the literature.

Hi , do the batteries have the protection circuit on them ?

@JoshuaBardwell

7 жыл бұрын

+Graham W2000 they can be purchased either way.

@weavostigercat2000

7 жыл бұрын

Thanks for the reply , did you use protected 18650 in this pack ?

How can u charge the battery through the 9v step up??

@JoshuaBardwell

7 жыл бұрын

Charge through the balance lead using something like this. www.hobbyking.com/hobbyking/store/__7637__Turnigy_12v_2_3S_Basic_Balance_Charger.html

@2121bud

7 жыл бұрын

Joshua Bardwell I have the Turnigy Reaktor 2x300 watt charger. Can I use this charger or do I have to buy a separate charger?

@JoshuaBardwell

7 жыл бұрын

You cannot, at least not unless you rig up an adapter to hook the balance lead up to the charger and charge each cell individually like a 1S.

@2121bud

7 жыл бұрын

Joshua Bardwell that sucks. Didn't want to have to buy another charger just to charge those batteries. Oh well

@mfbinside

7 жыл бұрын

You can always put another lead like with a xt60 on it, direct on the battery and charge it with a normal charger

Could we put the regulator in the goggles instead (:

@JoshuaBardwell

7 жыл бұрын

+gerald dale in theory, sure.

Josh please use a good battery. Samsung 25r, Sony vtc4-5-6 or LG he4. If something happens with the cells you are using it will be a very bad fire ball.

in this video you mention that you moded your goggle so that you dont need the balance lead for the fan . please make a video for this mod!!! and any and all other fatshark mods please!!

what about a normal 9V battery with adapter? would that work as well?

@JoshuaBardwell

7 жыл бұрын

Capacity will be very low.

@youngfyah

7 жыл бұрын

Thx, i appreciate the vids. Have you thought about doing Acro line of sight series?

@JoshuaBardwell

7 жыл бұрын

I suck at LOS.

@youngfyah

7 жыл бұрын

LOL me too. Thanks for the other videos though I wouldn't be able to fly Acro without them

At how many amps should you charge these?

@JoshuaBardwell

6 жыл бұрын

I always charged them slowly because I wasn't sure what the exact recommendation was. Like, 1 amp for a 2S battery.

@gustavgans6075

6 жыл бұрын

Thanks for the fast replies Josh always super helpful. But I think the amps for 1s and 3s are the same it only depends on the mahs. I have done some research but couldnt find an exact number. I am charging mine now with 0.5 amps because I thought slower is better but it takes VERY long so next time I will charge at 1 amp too. So thanks again and keep up the good videos! ;)

Why are 18650s used when you could solder an xt60 to a 2.5mm jack and run a small 3s? Goggles can take up to 13v

@JoshuaBardwell

5 жыл бұрын

The fan doesn't take more than 9c and will fry on 3s. And the goggles get super hot when run from 3s.

@jameskoonts6512

5 жыл бұрын

@@JoshuaBardwell fair explanation! Guessing I could use a step down?

@jameskoonts6512

5 жыл бұрын

Ended up using a castle Bec set at 9v so I can use whatever battery 👍

@KiSwiSje

5 жыл бұрын

​@@JoshuaBardwell Maybe you can share the source of this? i digged a bit deeper into this ... and it is not correct. I mailed Fatshark and got this response: "The Fan is rated at 12v so yes it will work with 3s. However, the fan will run very fast which is not ideal. If you are making a cable just take the 2s out from the balance lead to power the fan."

Is the fan going to be ok at 9 volts? Book says 2 S max.

@JoshuaBardwell

7 жыл бұрын

So far so good. It will definitely fry on 3S though. My thinking was it's only about a half volt more than it's rated for so it should probably be fine.

7 жыл бұрын

but the voltage on the balance lead is unaltered.

@JoshuaBardwell

7 жыл бұрын

But I run my fan off the goggle main power lead.

@roberteigenberger5064

7 жыл бұрын

I didn't alter my goggles that way so I still plug in the balance lead for the fan. The only thing coming off the pololu is one lead to power the goggles. The balance lead and another plug lead are wired straight to the battery for charging.

Joshua. You have just proven to me you bleed. If you leave this setup alone for an extended period they will discharge to 0 due to the pololu. Thank you for the help. Just so many things to engineer into a simple battery.

Cool mod...I actually used a 12v-7.4 ubec in a cord I made.. Have a 3s in my Taranis and hooked it to the old charge port as well as power the radio. I can plug my goggles right into my Taranis and fly all day...I could plug my goggles into and 3s without a problem.

@SKIDOOSH

7 жыл бұрын

I didn't like the batt strapped to my head...heavy and bothered my ears. I couldn't keep the goggles in a perfect position for my egg shaped melon...lol

@SKIDOOSH

7 жыл бұрын

....and...by using the mod battery in my taranis I can monitor voltage to the milliamp on my Trans screen :)

@JoshuaBardwell

7 жыл бұрын

I've done it both ways. I found it annoying to not be able to put the Taranis down without unplugging the goggles.

@SKIDOOSH

7 жыл бұрын

I am just the opposite. I always forget to unplug my goggles and hated having to fumble around with the plug on my head that I couldn't see to power them off. I even had rain sneak up on me once and I put my goggles in the case still powered up (my own error I know)..well to each their own! Whatever keeps us flying right?..haha

@SKIDOOSH

7 жыл бұрын

...mostly now I use the cord I made with a 3s in my pocket.. :)

Great to see this mod... but wish Fatshark would just provide this as standard.

Why not 2P instead of 2S when using a boost to 8v, then you get 6000mah instead of 3000mah

@JoshuaBardwell

7 жыл бұрын

+Victor Martinsson it doesn't work that way. The watt hours are the same and actually the efficiency of the regulator is lower when VIN is lower.

@Freakshowdevils

7 жыл бұрын

Joshua Bardwell You're right, my bad 😆 don't know what I was thinking, not at all😂😂😂

I love hacks. That's what it got me started in FPV I took a parrot swing and turned it into a FPV drone I think I was one of the first ones to ever do it those videos got me more views than anything I've ever done since lol. I love me a hack

Maybe large shrink tubing instead of wrapping with the electrical tape? But heck yeah.

Thats almost it, separate monitoring on those 18650 and we are good. Plus on off switch :)

Anyone got a link to that 'state of charge' LED meter?

@JoshuaBardwell

7 жыл бұрын

+Karl Robinsod I have a video on it with a link. Try searching for "Fatshark led" on my channel.

@darkvegetablematter

7 жыл бұрын

Don't worry, I found it in the end - part number is 1073721

why not recommend adding a mini just connector as an additional power lead that isn't 9v regulated? it is light weight and will prevent people from having to buy a new charger just to be able to charge this battery.

@JoshuaBardwell

7 жыл бұрын

It's just getting ridiculously complicated at that point...

But how do you charge. I mean how mutch Ahmps

@JoshuaBardwell

6 жыл бұрын

These are nominally 3000 mAh packs so in theory you could charge at 3 amps but I think this type of battery prefers slower charge, so I typically use 500 mA for 1 S or 1 amp for a 2S.

get a fatshark 18650 holder and some ultrafire flashlights.

I built mine with a 12 volt step up and I wired in an additional lead straight to the battery for charging.

@JoshuaBardwell

7 жыл бұрын

12 volts will fry the fan though.

housings of battery's can short. causing one cell to get very hot. insulate those batteries from each other

And while you've got the goggles you can do a review on them if you're interested.

@JoshuaBardwell

7 жыл бұрын

They're great. But get the HD3 if you have blurry edge problems.

I really hope it's not you who wraps the Christmas presents in your family ;)

Couldn't you just add a second lead to the pack with your favorite connector and still be able to balance charge on whatever charger you wanted to.

@JoshuaBardwell

7 жыл бұрын

You could, but I always charge these packs over the balance lead because it's just as much of a hassle to dig out a barrel-to-XT60 adapter.

@xxRock81xx

7 жыл бұрын

Joshua Bardwell I understand.

And titan lithium-ion 4 cell packs for planes go down to 2.5v per cell with no problem

Yust make regular battery with status board and make regulator seperatly on short tx60 plugs. So you can remove it after usage. So no more power drain and charging problems 👍. And now we can use 21700 5000mah li-ion cels.

My balance lead is also straight off the battery so it won't fry the fan.

@JoshuaBardwell

7 жыл бұрын

Same here. But I have rigged up my goggles to take fan power from the main power plug, so the fan does see 9v.

I think a BMS will protect the batt. maybe with a buzzer so u know before it turns off :D

Why not mod the goggles with the step-up? You'll only need one regular, be able to charge it normally and not have parasitic drain.

@JoshuaBardwell

7 жыл бұрын

+_ DEVSTER _ yup. But you do need to crack the goggles and also you'd need to desolder the barrel jack,woukdnt you?

Pro Tip: The Vapers use these same cells and are always on the hunt for the best and highest capacity cells. So, if you want the best cells find a Vape shop near you.

@HighVoltageMadness

Жыл бұрын

Lol. These red ones are not the highest capacity cells.

IED in the making!

Why don’t u just add a 2 cell beeper instead of led lights.

Sheef-life is that like Rizla Life.

these firehazzard batteries are a Major ripoff get Panasonic sanyo or Samsung never ever get these

Something to say about the 18650 PLEASE DONT USE THE LI ION WITH "FIRE" STH, they are really cheap LI ion and they are less safe to be used. Use some reputable brand like Panasonic plz Or else your house will probably get into a fire

Bro, she’s right, that thing looks like it could cause you a lot of trouble with the TSA. Haha! Just get another FS battery. I use the new ones that charge with usb, two packs last me all day and with the usb charging ones it’s easy to have an extra one charging and ready anytime. $22 on eBay.