No need to disassemble battery. Simply attach leads of trickle charger to exposed contact points with a wood clamp. Left on ten minutes. Placed in normal charger and perfect. Thanks for idea!!!

@TheBeardedJeeper

4 жыл бұрын

Daniel MacDonald didn’t realize that would work too from what I’ve seen direct to battery was the way to get it to work

@DannySteel18

Жыл бұрын

You need go bypass the board , so you need to disassemble it

@danielmacdonald16

Жыл бұрын

@@DannySteel18 That may be true some of the time or perhaps even most of the time. But I did not disassemble my battery and I was able to revive it as described above. Saved me time and effort.

@beereadyyy9849

Жыл бұрын

@@danielmacdonald16 you have the same name as the OP lol weird

@vivalv666

Ай бұрын

@@TheBeardedJeeperk 😊and😅l l😅nilli😅😅I no

You are a genius. Just revived my Ryobi battery using my portable jump starter battery. Held the red clamp to red and the black to the other side of the battery as shown in the video. After 30 sec, still low voltage, 30 sec more, 3.8V across the battery, still shows defective on the Ryobi charger, 1 minute more on the jump start battery, 9.2 V across the Ryobi battery, plugged into the Ryobi charger and it flashes green. Thanks.

@TheBeardedJeeper

4 жыл бұрын

Jim Harper awesome man glad it worked for you!

Watched a different video on this issue, man. I have to say your simple way of getting down to the point is what I liked. Got all the info I needed quick and easy. Thanks

@TheBeardedJeeper

3 жыл бұрын

K 510 awesome I’m glad it was able to help you out. Thanks for watching

Works great. Five seconds on the battery charger and it’s charging on the ryobi charger now. Thanks

@TheBeardedJeeper

6 күн бұрын

Awesome glad it worked for you

On the charger and charging! Thanks for the info. Yup, I believe the disassembly is required to bypass the board, which is what was preventing any charging in the first place. Once the leads were hooked, the charge quickly went from 11V to 17.5V, when I stopped it and plugged it into the charger.

@TheBeardedJeeper

Ай бұрын

Awesome glad it helped you out

You rock! I already got my new battery with the warranty, but this worked getting the dead one back up and running! I used my trickle charger to get the battery to 10%, then plugged it into the charger and it charged right up! Thanks for the simple how too!

@TheBeardedJeeper

Жыл бұрын

That’s awesome glad it could save a battery for you!

Marvellous! I had a battery that the Ryobi battery charger showed as faulty. Took the cover off as per your video, hitched up a car battery charge to it for twenty minutes (filling the battery to 12 volts) and put it in the Ryobi battery charger. The battery is now charging up. THANK YOU!

@TheBeardedJeeper

4 жыл бұрын

Clive Weaver that’s awesome glad it was able to work for you and save you some money.

Good looking out, man! It worked. Wish I would've known this before I got rid of a lot of batteries before but I'm glad to know this now. I saved 1 battery today, THANKS. Have a blessed day

@TheBeardedJeeper

3 жыл бұрын

Mike Chapman you bet! Glad I worked out for you!!

Was looking for a solution as there was no light on my Ryobi battery! 2 minutes after watching this video the battery was charging. Fantastic video and so easy to follow. Thanks for the upload!

@TheBeardedJeeper

Жыл бұрын

Awesome glad it worked for you! Thanks for watching

Thank you! In the course of 1 hr I recovered a Ryobi, 18V, Dewalt 18V and a Black & Decker 40 V. I probably would have gotten new tools instead of batteries for the DeWalt and B&D since they are 10+ years old. 3 of the B&D were dead. So you saved me more than the cost of the batteries because I would have just replace the tools.

@TheBeardedJeeper

2 жыл бұрын

awesome I am glad it was able to help you. I really appreciate you taking the time to watch and leave a comment

Worked like a charm I used a 12v automobile battery charger (lowest setting at 2A)...took about 5 secs at the terminals to bring it back to detectable voltage. Thanks

@TheBeardedJeeper

3 жыл бұрын

Awesome! glad it worked for you!

No kidding dude! Great hack! You are going to save a lot of folks with this one!

@TheBeardedJeeper

5 жыл бұрын

D&E In The Garage yeah I thought it was awesome and it saves you some coin too

Thank you for this video. I had a 3ah that wouldn't charge, followed the instructions and successfully revived it. Like your's initially it wouldn't take the charge but I slid around my connections a couple times and was able to get a zap that was enough to get it charging again.

@TheBeardedJeeper

3 жыл бұрын

Awesome glad to hear that. Thanks for watching

Absolutely works.Saved two batteries.Used the trickle charger clamps directly on the battery in under 30 seconds.Thanks man.

@TheBeardedJeeper

10 ай бұрын

awesome glad it was able to help save your batteries! thanks for watching

Brought my 2Ah 18v lithium back to life! Thank you for the video. Much appreciated

@TheBeardedJeeper

3 жыл бұрын

No problem glad it could help!

Just did this to my 2a battery and it is back to life. Thanks for the hack.

@TheBeardedJeeper

4 жыл бұрын

Benjamin Ferguson no problem glad it helped!

Thank you for taking the time to show us what you found please continue make more

@TheBeardedJeeper

4 жыл бұрын

timothy bapp thank you for watching I appreciate it!

This way worked beautifully. Tried without taking the battery apart but didn't work. Then finally did but instead of a trickle charger I used a known good battery and jumped it. Charging rn! Thanks bro!

@TheBeardedJeeper

2 жыл бұрын

Awesome glad it worked for you! Thanks for watching

Well sir after much messing around with trying to get one of the 3 dead batteries open that I have I was able to get the first one I got open charged enough to be recognized by the charger and start flashing green for charging. Thank you for this post you have saved me at least $40.

@TheBeardedJeeper

4 жыл бұрын

Tony True that’s awesome I’m glad to hear it was able to help you out

@tonytrue3211

4 жыл бұрын

And for a final update I can confirm that 100% of the batteries I did this hack with worked. 3 for 3.

@TheBeardedJeeper

4 жыл бұрын

@@tonytrue3211 thats awesome I am glad it was able to work for you!

Brilliant! Thank you - your video was perfect - easy instructions to follow, saved me from having to buy a new battery!

@TheBeardedJeeper

Жыл бұрын

Glad it worked for you!

Totally worked. Used my Dell laptop charger (18.5V output) for about 20 seconds and it upped the Ryobi P102 voltage from 4.7V to 7.2V which allowed the charger to start charging again. This was especially good since my battery was still under warranty and they wouldn't be able to ship me a new one for a month and a half! BTW, Harbor Freight has a security bit set for a nominal cost.

@TheBeardedJeeper

3 жыл бұрын

Awesome glad it worked for you!

@NoLimitsExclusive

Ай бұрын

How did you use a laptop charger though?

Worked perfectly for me. 30 year old car battery trickle charger for 30 seconds. Had to slightly drill out one of the security bit holes on the battery. They'd added some plastic to the hole to keep it from being disassembled.

Thank you for the video, it worked for my battery (had to bring it back to 12V for the charger to recognize it) !! If (like me) you don't have a trickle charger but have another functioning (and charged) 18V Ryobi battery, take it apart as well and connect the + and - of the functioning battery to the + and - of the defective one

@TheBeardedJeeper

2 жыл бұрын

glad it worked for you thank you for watching

Yep! Too far below charging recovery.. I hated that! I was sick of fixing em so I ended up ditching Ryobi all together. Great video bro. And yes.. if you break the seal it voids the warranty. Lol

@TheBeardedJeeper

4 жыл бұрын

thanks man! yeah I think when I can afford it I want to do all Milwakee fuel series I used my buddy's impact the other day and that thing was amazing!

💯 % this works!!!! Saved me cost of replacing batteries A+ review

@TheBeardedJeeper

3 жыл бұрын

awesome glad it could help you out. thanks for watching!

Many thanks brother! Got it going in no time!!

@TheBeardedJeeper

4 жыл бұрын

1985GusT awesome glad it could help!

That worked for me!!!! Thank you so much.

@TheBeardedJeeper

4 жыл бұрын

Dan Mosqueda awesome glad it worked for you!

I tried it first without taking it apart for 10 min, it didn't work. Took it apart, used your method with direct charge for 1 min- BAM, WORKED. Thank you ☺️

@TheBeardedJeeper

4 жыл бұрын

Common sense is dead! You bet glad it could help you out.

@davidvrablic5999

3 жыл бұрын

:oltage bump has to be done on the battery side of the bms charg / discharge circuit. CAUTION Only for a few seconds at a time. Check with a voltmeter usually needs overv 10 vdc. To charge If stubborn give it 3/5 seconds, check voltage, wait then try again. If to much for too long you may get heat, damage and fire.

Worked perfect for my 2 dead batteries. Wild.

@TheBeardedJeeper

22 күн бұрын

Awesome glad it helped

Thank you Bearded Jeeper this worked straight up, quick and easy. Cheers

@TheBeardedJeeper

2 жыл бұрын

Awesome glad it worked out for you

Genius! Worked for my 18V

@TheBeardedJeeper

4 жыл бұрын

Darren Brown awesome! Yeah I found it works most of the time. Sometimes they don’t work but probably 80% of the time it does

It worked! Thank you! Hooked mine up to my portable battery booster.

@TheBeardedJeeper

18 күн бұрын

Awesome glad it worked out

If I could like this 10000 times I would. Appreciate the video. You saved me $$$$$

@TheBeardedJeeper

4 жыл бұрын

Rob Robertson thanks man glad I could help. If you could share the video and subscribe I would really appreciate it! Thanks for watching

Nice worked! I just connected a old 18v battery charger by splicing the wire and connecting it directly to the battery cells for a minute and it started charging.

@TheBeardedJeeper

3 жыл бұрын

That’s awesome glad it worked for you. These batteries are not cheap

@Akziis

3 жыл бұрын

@@TheBeardedJeeper exactly i went to the home depot and saw the prices and immediately searched for a video and saw this! Thank$!

@TheBeardedJeeper

3 жыл бұрын

@@Akziis you bet! Glad it helped

Great video. I was prepping to do this. Just by chance I shook the charger with the battery in place and it started charging. Obviously not the same problem but worth a shake.

@TheBeardedJeeper

2 жыл бұрын

Awesome

PSA: deep discharge and subsequent charge of lithium batteries can lead to fire. Act accordingly. I've found the Ryobi batteries will kill themselves if not fully seated in the charger. Also do not continue using them once they start to slow down, swap or charge. That will prevent the voltage from getting too low to charge safely. You can also buy new 18650 batteries and replace them. Did that to a old pack and it's better than new, since battery capacity has grown significantly in recent years. 👍

@TheBeardedJeeper

4 жыл бұрын

otterpopjunkie thanks for the info. Definitely a good thing to be aware of don’t need these catching fire. 🔥

@DinkyDiTruBlu

Жыл бұрын

excellent information. thankyou for sharing!

Hey man! This is too cool. It worked perfectly.

@TheBeardedJeeper

4 жыл бұрын

Jim Davy awesome! Glad it could help you out. I’ve had a pretty good success rate with it too only a few older ones I couldn’t get to work. Thanks for watching

@jimdavy5751

4 жыл бұрын

@@TheBeardedJeeper I had the success with a P189, 5 cell pak. All the cells showed about 0.30 volts. Then I tried a P108, 10 cell. Four of the groups showed 3.6 volts. The 5th showed about 0.75 volts. I tried to charge the individual group. That did not work.

@TheBeardedJeeper

4 жыл бұрын

Jim Davy yeah a couple I had to try multiple times. But sometimes a battery is too far gone

Worked!....Thanks!....I just taped 2 small wires to my good battery and held it on for 20 seconds and it went from 2v to 10v and then it started charging. And yes, you must remove cover on dead battery because anything under 5/6v will not show/read on upper stem. Thanks

@TheBeardedJeeper

Жыл бұрын

Awesome glad it worked out for you! Thanks for watching

Worked with my P10! Thanks!

@TheBeardedJeeper

3 жыл бұрын

Awesome! glad it helped you out!!

Thx man. I got a bunch laying around and they defective too. Gonna try!!

@TheBeardedJeeper

3 жыл бұрын

Awesome let me know if it works for you

This actually worked. I touched 12v dc power to each battery. Brought each cell up to about 2v. Then plugged the battery in and now its charging. It hasn't worked for 3 years. Just make sure you check the + - on each cell. Touch 12v to each cell individually for just 5 seconds each.

@TheBeardedJeeper

3 жыл бұрын

John Quilitz awesome glad it worked for you

Thank you! This worked brilliantly for both a Ryobi and a Black & Decker - same concept applies! #welcomebackboyz #moneysaved

@TheBeardedJeeper

3 жыл бұрын

Awesome glad it worked for you. Thanks for watching. Make sure to give this video a thumbs up 👍🏻

Had the same exact problem. Worked perfect. Just a FYI don’t use the positive and negative on the stem part. Use the positive and negative on the base off the battery where u has two flat spots diagonal from wachother

@TheBeardedJeeper

3 жыл бұрын

yeah you have to take the cover off to get it to work. thanks for watching and glad this helped

@danafaulhaber334

3 жыл бұрын

Thanks for stating not to use the stem connectors to revive the batteries.. bc that was my main question while watching this video an luckily I didn't have to scroll thru comments that far to find my answer..

@danafaulhaber334

3 жыл бұрын

But how is it they claim you can put the battery in the charger for a bunch of very short periods to slowly get it back above the sleep mode level but yall say I can use those terminals to shock the battery back above that level??

@TheBeardedJeeper

3 жыл бұрын

@@danafaulhaber334 I’m not sure. I’ve never been able to make it work by just taking it on and off the charger fast. I would try that first and if that doesn’t work check the warranty. But if you are past the warranty give this a try

@danafaulhaber334

3 жыл бұрын

@@TheBeardedJeeper thanks for the response.. yea that whole 2 second in out in out bs is a pain an ive seen claims it could take up to a half hour for that method to work.. an after watching other videos after this 1 think its prolly better to take it apart to give it a Jumpstart so then its possible to check each individual battery instead of only being able to check the system as a whole.. Thanks again Bearded Jeeper for a quick response..

Thanks! This just brought a dead Ryobi battery back from the dead!

@TheBeardedJeeper

2 жыл бұрын

you bet glad to help!

You da man Bearded one. Tried first with a trickle charger and I was too impatient. The voltage on the Ryobi 18v battery seemed to be just going lower. I then hitched up the dead Ryobi to a 12v car battery with ~12.5v of charge. I left it on for 10 minutes and viola..... the green light started flashing. Many mahalos from the Big Island of Hawai'i. Saved me more like $70 (they have gone up in price a bit, go figure)

@TheBeardedJeeper

Жыл бұрын

Thanks Erick I really appreciate the feedback and I’m glad it helped you out!

another awesome video

@TheBeardedJeeper

5 жыл бұрын

Nuttty thank you sir

I tried this on a 2ah battery and it worked!!!!!!! thanks bearded jeep dude!!!!!!!!

@TheBeardedJeeper

3 жыл бұрын

Great to hear! glad it worked for you

Thanks bro. This worked for me!

@TheBeardedJeeper

9 ай бұрын

Awesome glad it worked for you thanks for watching

This is great man, hope it works. I have like 5 I need to try this to.

@TheBeardedJeeper

2 жыл бұрын

It works most of the time. It doesn’t always work but I’ve had good luck with it

Worked for me! Thanks

Nice one bud, saved me spending money I don’t have! Thanks

@TheBeardedJeeper

3 жыл бұрын

Awesome glad it worked for you

Thank you for the Video. The hardest part is once the battery is charged and used again one has to this method again and again? Any idea how to overcome this situation???

@TheBeardedJeeper

2 жыл бұрын

Nope you shouldn’t have to do it again like this. It’s only when the battery gets too low that the charger doesn’t recognize it so you give it a little jolt. It’s a safety feature.

Thank you so much! God Bless You!

@TheBeardedJeeper

3 жыл бұрын

Arkadiy Yaslinskiy glad it could help you out

Four year later and I found that this works as long as it only low battery but I suggest that u buy a harbor freight 12V trickle charger that seen to work the best and safest it only put in .75 V. I didn't use spare wires the small clamps in place for 30sec at a time about 3m minutes in total before my charge started charging the battery , good luck and be safe

thank you for pointing out the hole in the T10 security tip. I cannot use a T10 tip that I have, and I know why now. This hopefully will avoid the other solution of drilling a hole in the case to recharge

@TheBeardedJeeper

2 жыл бұрын

Yeah sometimes you just need the right tool for the job

I tried this on my Ryobi battery and it worked like a charm. Thanks for sharing how to fix it.

@TheBeardedJeeper

3 жыл бұрын

TwistyJ2 you bet glad it worked for you

Worked for me. Thanks

@TheBeardedJeeper

4 жыл бұрын

Brian Keith awesome glad it helped!

Thank you, this worked for me! My big battery a P05 now is charging. it looks like there are 6 small cells inside the battery so i did touch the red (+) to two separate leads for about a minute each and that was enough to get it to charge using the ryobi charger. (When I charged only the first point it didn't work.). FYI i used a trickle charger 800ma battery tender jr. I used a small piece of speaker wire as my leads. i dont have a voltmeter so i just used 30 second timer and then tried it. Took me 4 tries but it worked.

@TheBeardedJeeper

Ай бұрын

Awesome glad this worked for you

Worked! Wow I have thrown out a couple batteries for nothing! Just an FYI one of my screws was hidden by a plastic plug.

@TheBeardedJeeper

3 жыл бұрын

Awesome glad it worked for you. I think I explained in the video that the plug is your warranty. If you take the plug out it voids any warranty you had on the battery.

Worked like a charm! Except i don't have a trickle charger and didn't want to drop the cash on one just for this, so i used an old 18v laptop power brick from my spare parts bin.

@TheBeardedJeeper

2 жыл бұрын

awesome glad it worked for you

You have far more patience then I do. Lol. That thing would be in the dumpster if it started not charging 🤪🤪 interesting video though!

@TheBeardedJeeper

5 жыл бұрын

Casey 250 haha thanks man. Yeah I would normally but they are like $40 a battery and this only takes a few min. I have had several of their batteries do this. If I could afford it I would switch to Milwaukee the fuel line is amazing

Works like a charm! 👌

@TheBeardedJeeper

2 жыл бұрын

Awesome glad it helped

Thanks for the video, man. When I measure the voltage using the external positive and negative it reads 6.9V but when I open it up and measure the voltage on the internal positive and negative, I get 19V. Do you think there is a different problem I’m having? Thanks.

@TheBeardedJeeper

9 ай бұрын

No sounds like you are doing it right

I know you said 30 seconds. Using a meter, I found out that if the battery comes back less than 8 volts, it's not going to charge. The ones I had were in the 5 volt range and one was at 3. I connected my trickle charge to them, the ones in the 5 volt range took several minutes to get up to that 8 volt area. I monitored it with my meter and could watch the voltage climb. The other one that was at 3, it climbed very slowly but left it over night. This morning, it was at 9 volts and I put it in the Ryobi charger and it's doing its thing, blinking green. I've got one more to go (had a total of 3 of the P102 batteries)

@TheBeardedJeeper

2 жыл бұрын

Yeah some do take longer than others. Thanks for watching glad it worked for you

thank you!!! just resurrected three of mine using a computer charger!

@TheBeardedJeeper

3 жыл бұрын

awesome! glad this video helped you out! don't forget to give it a like and share. Thanks for watching!

Awesome! your the best!

Hi pal, good vid. I have 18v ryobi battery that isn't powering anything but shows green (charged) on itd charger. Is it worth trying your hack or is it a different problem? Cheers.

@TheBeardedJeeper

2 жыл бұрын

It might work but I would check to see if your battery is under warranty first. If it is you can get a new battery free.

Thanks for this video. Very straight and to the point. One comment I read said that Harbor Freight has a security bit set to remove the retaining screws. Could you please give me that part number? Would it also be available at AMAZON?

@robinwatters6682

Жыл бұрын

I went to my local hardware and got a T10 security bit and it worked

@TheBeardedJeeper

9 ай бұрын

Sorry for the late reply this comment was in my hidden section for some reason. Here is an Amazon link to a nice set for cheap. amzn.to/3Po0X44

@outlet6989

9 ай бұрын

Thanks for your reply. I like reading them. I finally found a set at Harbor Freight. Are those companies that use them trying to tell us DIY people something?@@TheBeardedJeeper

I know one thing that causes this problem. When your tool stops do not try to use it even a bit more. Stop what you are doing and change or recharg that battery, like thebman said if the battery volltage gets below what the battery management system (BMS) allows . You wiill have to do this trick to get it back over the charging threshold. Charge your bathroom teries more often and pay attention to those with the built in level meter. MY 2 CENTS. good vid!

@TheBeardedJeeper

3 жыл бұрын

David Vrablic I did not know that. I usually tried to get a little more out of the battery. Thanks for watching

Nice, just revived two old P102's that were about to go to the dumpster.

@TheBeardedJeeper

3 жыл бұрын

Awesome I bet that saved some coin. Glad the video helped

It worked for me!

@TheBeardedJeeper

4 жыл бұрын

Barrett Snow awesome glad it helped

Thank you

@TheBeardedJeeper

4 жыл бұрын

Ric Espree you’re welcome

Genuine & work great!

@TheBeardedJeeper

10 ай бұрын

Awesome glad it helped you out

Just one question. What specifications do we look for the chargers.

@TheBeardedJeeper

9 ай бұрын

For the trickle charger?

Where do you buy the tool to take the battery apart?

@TheBeardedJeeper

3 жыл бұрын

you can find them at any place that sells tools. I think they are called security bit drivers or something like that

Neat - worked great!

@TheBeardedJeeper

3 жыл бұрын

Awesome thanks for watching

Duuuuuudee!!! Its charging!!! Wow fr man thank you

@TheBeardedJeeper

3 жыл бұрын

E Bazar no problem glad it could help you out!

In the user manual it says of the battery charger is blinking red it could be because the battery is deeply discharged and to simply leave it on the charger and it will eventually charge.

@TheBeardedJeeper

9 ай бұрын

I have left them on charge for months with no luck

@Somebody2687

9 ай бұрын

@TheBeardedJeeper Hey, I'm just a messenger. Maybe sometime it will work other times not who knows

@TheBeardedJeeper

9 ай бұрын

@@Somebody2687 yeah maybe. 🤔 I never had any luck with it. Thats why I switched to milwakee

I've found the biggest culprit for taking a battery below its chargeable state is the Ryobi radio. Most high drain tools cut out before the battery reaches too low a voltage.

0:50 I think that ryobi charger kills ryobi batteries. I’ve had a few batteries I’ve put on to charge, they charge fine for a few minutes, but I come back hours later and it’s flashing and the batteries don’t work.

@johncoops6897

3 жыл бұрын

That happens when the total cell voltage is high enough to initiate charging (green light) but then the pack is detected as not accepting a charge properly. Therefore the charger terminates the charging process, creating the red lights. That situation is caused when one or more cells in tbe pack hsve failed, and the charger deliberately stops charging them to ensure that there is no chance of fire, etc. So, the battery pack is failed and the charger is NOT what killed it. You can replace the cells and create a refurbished pack, but its a lot of work and can be costly because you must use 5 or 10 matching cells (you cannot just replace one faulty one). You also have to use so-called "high amperage" cells that are suitable for power tools, you cant just use any old laptop 18650s. You need to check the specs of the original cells and make sure you replace with cells of equal or higher "maximum amps current" - the 5 cell packs need higher rated cells than 10 cell packs.

nice one!

@TheBeardedJeeper

4 жыл бұрын

Thank you I appreciate it

Do you have to take it apart? Can't you access the poles without?

@TheBeardedJeeper

2 жыл бұрын

the poles on top do not work thats why the charger doesn't charge your battery when it gets too low it is a safety feature it wont charge it so you have to give it a boost

I don't have a trickle charger, only a booster pack... Kinda wanna try it with what I got any way.

@TheBeardedJeeper

3 жыл бұрын

It should still work just try it in small increments

Great video mate, I didn’t know you could fix them, definitely going to stop chucking them away now

@TheBeardedJeeper

5 жыл бұрын

Cheap Jeeper yeah I didn’t either glad I found out. Hope others find it useful too

Got my P108 replaced under warranty, going to try this out.

@TheBeardedJeeper

4 жыл бұрын

Jonathan Bowmer mine was out of warranty so I had nothing to loose

So I just got a couple newer Ryobi 18v 4ah batteries off FB marketplace & I bought them knowing they were “defective”.. when I test w/ multimeter, one shows 131 m V & the other shows 163 m V.. I haven’t been able to find anything about this type of issue.. any ideas/suggestions would be greatly appreciated!

@TheBeardedJeeper

11 ай бұрын

Will they not charge at all?

@gpv527

10 ай бұрын

You can jump individual cells in the pack using a second (known good) battery. Using jumper wires with alligator clips, jump a single cell that is low in charge to a known good cell on the good battery. MAKE SURE YOU ARE CONNECTED USING PROPER POLARITY!!! (Positive to Positive, Negative to Negative) Use a digital voltmeter to keep measuring the voltage of the "low cell". When it reaches approximately 4v, do the same for any other low cells (but make sure you jumper to a different cell on the known good battery so as not to drain that cell too far. Once all of the cells on the bad battery are over 4.001v, you can then put the battery in the battery charger and it will then charge it. NOTE: Each cell can take a few minutes to charge up to 4v, so make sure you keep it jumpered long enough to get the cell's voltage above 4.001v. I had a P107 battery (showing only 2 LED lights after the charger said it was fully charged) with one of the cells at 3.5 volts and all of the others were above 4v. Using this method allowed the battery to take a full charge again and showed 4 LED lights again.

This worked for me! Thanks for sharing your wealth of knowledge!

@TheBeardedJeeper

2 жыл бұрын

awesome! glad to hear it helped you out!

Mine blinks red then green like is charging then after a few seconds it stops and changes to a solid green showing that it's charged so I try it in the drill but it doesn't work do you have any idea why?

I don't have a trickle charger, any other way to do this? I might be able to borrow one but will have to ask around.

@TheBeardedJeeper

4 жыл бұрын

Daryl Handley any power source to put some juice in the batteries. They just need to get to a higher voltage to be registered by the charger

@L-h8py

4 жыл бұрын

I thought this video was also very helpful and purchased these items on Amazon. Ryobi P102 Battery Repair kzread.info/dash/bejne/io2d182EdrvNaJc.html. Let’s see how it goes.

P108 has paired batteries. Hence, the front paired battery was bad--replaced them. Packed now charges.

@TheBeardedJeeper

3 жыл бұрын

Good to know. Thanks

My P108 has in one corner a "plug" where a screw might have been. How do I tackle this corner? Also I removed two screws but the 3rd is stripped. So I only freed up two of the corners. WHat do you think?

@TheBeardedJeeper

2 жыл бұрын

The plug should just be a cover screw underneath how did you strip it use a normal screwdriver?

@user-jv9qz2bu1r

2 жыл бұрын

@@TheBeardedJeeper No I used a torque but it was one size too large or small the head must be soft metal ,,, then when I found the correct size the other two came out easily ... ok will pop the "cover" off ... if I can remove 3 of the 4 screws maybe I can pry that lid apart

@user-jv9qz2bu1r

2 жыл бұрын

BTW I subbed!

@TheBeardedJeeper

2 жыл бұрын

@@user-jv9qz2bu1r you might be able to but careful it’s just cheap plastic it may break

@TheBeardedJeeper

2 жыл бұрын

@@user-jv9qz2bu1r thank you 🙏

I charged the batteries directly with a power supply and got 19.4V at the internal terminals. However, the external tabs still show 0V. Is there a way to reset the safety circuit to get it to work?

@TheBeardedJeeper

3 жыл бұрын

Hmm not sure on that one. Maybe there is a loose wire somewhere?

@kpwill45

2 жыл бұрын

I have exact same issue as well and can't seem to find much online regarding this. Super annoying, I think must be faulty BMS as I've attempted to reset it by placing a charge as well as a load on the main terminals on the top of the pole, as that's typically how you reset a BMS. Did you ever find a solution to this problem? Anyone?

@kpwill45

2 жыл бұрын

Also, this is for a P189 battery, what model is yours that you have the same problem with?

The answers simple keep them topped up all the time ... never let them drop off . They use a drop out circuit in the charger section and this is how it refuses to pick up on charging ..😀

wow great thinking

@TheBeardedJeeper

3 жыл бұрын

Hope it works for you

@ahmedabdelmalekahmed6171

3 жыл бұрын

@@TheBeardedJeeper thanks for the great advice have a great late thanksgiving!!

@TheBeardedJeeper

3 жыл бұрын

@@ahmedabdelmalekahmed6171 you are welcome. Happy late thanksgiving to you as well.

Worked for me 🙂

would this work for the 40V 4ah battery?

@TheBeardedJeeper

3 жыл бұрын

It might but taking it apart would be a little different. I haven’t tried one yet.

why take it apart gnd and power are exposed on the outside?

@TheBeardedJeeper

3 жыл бұрын

You have to take it apart when the battery gets too low it doesn’t let you charge it normally as a “safety” feature. You have to give it the juice right to the board itself.

Why you cant use the top battery pole without unscrewing it

@TheBeardedJeeper

3 жыл бұрын

I am not 100% sure I think it might be part of the thing that won't let it charge if it is a low voltage. taking it apart and putting the charge right to the battery cells seems to do the trick

My 18v battery actually shows full charge at the cells but the post shows zero. Any ideas? Thanks

@TheBeardedJeeper

Жыл бұрын

I’m not sure I’ve had a few do the same thing and I just got rid of those ones

Awesome dude awesome just awesome

@TheBeardedJeeper

Жыл бұрын

Glad it helped