I've been playing with the 2 cell version (7.4v) of this solar charge controller and have found it seems to trickle charge the cells. Have you noticed this and what are your opinions on whether this is a good or bad idea? Thanks for the video.

Great video! i just wondering where you got your solar panel? It’s very slim. I hope to get similar product! Thanks for sharing.

You should run light and see at what voltage controller stops discharging battery.

Is it reliable over time? Does is need fuses or other kind of protection?

I have a 3s connected battey I connected with solar but didint charge Solar providing 18v i was checked with multimeter

I wondering can this solar panel can charge 52 volts and 13 ah ebike battery ?and I was looking what kind solar panel to buy and what kind power can do

I only need to buy 60 of these

typical folding portable solar panel + step-down converter + nitecore d4 charger (or other high quality charger) = best way to charge 18650 batteries on the go.

I have two of the 3.7v 3A versions of this controller and both have the same problem. If the battery goes below the low cutoff voltage (3.44v) on mine the batteries won't recharge. With fully charged batteries I get the following voltages Battery 4.16v, Load 4.16v, Solar panel 16.5v (18v panel, early morning, slightly overcast) but when the controller cuts off load I get 3.44v on both battery and solar panel terminals. Can someone tell me what is going wrong?

Hi , Does someone know how many volts solar panels must be rated to be used with the 11.1V li-ion solar charger ? Regards,

@vuaeco

7 жыл бұрын

Solar panel has to be rated at 18-22V open circuit.

can this use my own build 4cell 4P battery pack ? need pack install BMS or handle this charging all battery balance good. i have old vape and laptop battery lot and made all to 4cell 3 cell have too low volt, 4 cell perfect can adjust step down output to perfect 12,1volt. and minimum 4Paraller come 8800mah maybe need more 8P. how this can charge safety and good eweryday. my solar panel 18V 6A nominal 100W panel.

I have a question

what would be the optimal battery cell if this is a 3A Regulator? could I charge a 3000mAh 3S 11.1v 20C Lipo Battery Pack with this? thanks!

@vuaeco

8 жыл бұрын

3A at 12.6V is about 38W. That's the max power coming from your solar panel. That means every hour you get 38W or 38Wh of power coming from the solar panel to your battery (at max power). A 3000mAh battery in 3S config is 9000mAh total 9Ah. At 12.6V, it is 9x 12.6 = 113Wh. So to answer your question, yes you can use 113Wh battery pack for this setup. It only takes 113/38 = approx 3 hours to fully charge your battery pack. That means you can even use a bigger battery pack as you usually have an average of 5-6 hours of full sun every day.

@1981dasimpson

8 жыл бұрын

i use one of these with 40 watt panel set up and a battery pack of 44amp hours and workls just fine to charge them and to shut off at over discharge

@ojoaereo241

8 жыл бұрын

Thank! so now im going deeper into my thoughts: If I mix these things together what would be the best way to make this happen with this controler? parallel circuit with x2 controllers x2 portable solar panels? I would like to make 2 motors work with 1 controler 1 battery 2 small solar panels if possible... These are the specs of the hardware: MOTOR 1 Rated Voltage 3V /6V Rated Current

@1981dasimpson

8 жыл бұрын

+Ojo Aereo them panals would take days to charge even that size of pack

@1981dasimpson

8 жыл бұрын

+Ojo Aereo the controller can handle a 45 watt panel so that contoller and that battery should run easy they are doing 10 watt panels on ebay at moment for about $16 with no frame so are light

Is that light diagram even work????

what is the make and model of the charger ....who sells it ......S

Can anyone tell me if you can use the battery while charging, say, if I wanted an RC car that could charge while it was running? I know the panel couldn't keep up with demand, but could I do it, or would it ruin the batteries or catch them on fire?

@Markle2k

7 жыл бұрын

It's all about the net flow of charge. Charging the RC car while running is fine if you can keep the wires from getting tangled while it is running around. A better choice for load would be something that doesn't move, though. ;~)

I have a 68800 Mah Li-ion battery - multi-function. It came with a wall charger and you can also charge it with cigarette lighter in my car. Will this system work for my Li-ion battery.

@vuaeco

8 жыл бұрын

This is a 12V charge controller so you will need to have a 12V Li ion battery. How many volts is your battery pack?

will it charge a 12v x 50Ah Li-ion battery

@untungsuharto6608

6 жыл бұрын

Joel Hall , yes itu can charge 12v 50ah lithium-ion battery pack...I use this charge controller too but solar panel not over more than 10a capasity.

cells full are 4.2 cells empty can be as low as 2.5-2.8 volt but safe is 3 volt 3.7 is normanal voltage this means when under load

@vuaeco

8 жыл бұрын

3.7V norminal when under load. If it's at 3.7V open circuit, it's time to recharge. You don't want to discharge it to 2.5V because that is completely empty. That's absolutely detrimental to the cell and will only last a few cycles before it dies on you for real.

@1981dasimpson

8 жыл бұрын

+vuaeco my pack dont run that low but thats from spec sheet of the cells my pack tends to knock off around 10 volt due to charge contoller and protection circuit

where will I purchase this device

@CowMowTV

4 жыл бұрын

EBay

What is the point of a solar charger that only charges and nominal 11 volts when that won't even run a 12 volt inverter? They need to make one that charges a 24 volt lithium cell

Could this be used to charge a 12V 12Ah battery? (this one: s.aliexpress.com/yMRVraiE) I was thinking about connecting it with 25W solar panel (Vmp = 18V; Imp = 1.39A; Voc = 21V; Iac = 1.53A) or perhaps two of those running in parallel. What would you recommend?

This controller can work with 14v batteries?

@vuaeco

7 жыл бұрын

No it cannot. Max battery voltage has to be 12.6V. That's 3x Li-ion cells in series.

@serdardemirci3996

7 жыл бұрын

Thank you.

@serdardemirci3996

7 жыл бұрын

Sorry one more question. Can i use this regulator for car battery?

@vuaeco

7 жыл бұрын

No, you cannot use for car battery. A car battery needs to be charged at 14.4V max. This can only go up to 12.6V. Maybe you can use for a car battery if the battery is very discharged like 11V or less (which is very bad for the battery). But then you can only bring it up to 12.6V. To fully charge a car battery, you need to bring it up to 14.4V.

@serdardemirci3996

7 жыл бұрын

Thank you.

Not good to trickle charge lithium cells.

just spend 160 euro for a frikking victron with bluetooth .....