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As long as you keep the battery bank perfectly balance, and use an overvoltage relay that can disconnect your charging source, you can charge it with any charger. The BMS will be like a deadman switch to stop charging if something fails. You mention you will be getting balancers, thats what I...

I use a isdt q6 charger (cost about 50 dollars) to charge between batteries. This charger fits in the palm of your hand and can handle up to charging at 14 amps. I been using it to charge my powertool 18 volt batteries from my 12 volt house battery, it charges everything lithium/nicad/lead acid...

One thing I notice on lifepo4 is that the lower voltage you set your solar controller to the less amps it will get. So set to 14.6 volts is a good setting if you have no voltage drop between the controller and battery. After you have been using your lifepo4 for a while, if you think your solar...

how much amps are you getting from the 2 panels when the sun is overhead? with 320 watts I would think about 16 amps charge power at least? I would check for voltage drop between controller and batteries. Fully charge the battery needs to read 14.4 volts (right at the battery terminals) , if you...

I read comments that the wire gauge use is 16 gauge, I owned roadpro products and know they put the least copper in there wiring to barely do the job and no more. Everytime you take the battery below 12.1 volts its very bad, once you go into the 11 volt range you are killing the battery. Go...

Charging port (input, 8mm): 14-22V, up to 10A (120W max) Power Pole charging port (input): 14-22V, up to 30A (360W max) Expansion Module portCovered port under the lid. To be used with Goal Zero expansion modules only It has 2 charging ports both at 22 volts max.... There 200 watt boulder...

check the voltage at the actual battery.... you might have some voltage drop. On my controller I have a .5 voltage drop. When the controller reads 14.4 volts the battery only reads 13.9 volts. To compensate I raise the the controller to 15 volts and the battery reads closer to 14.4 volts when...

For lifepo4 you will need a coulombmeter, the lifepo4 battery reads 13.1 volts almost all the time except when its almost full or almost empty. I been using the tk15 - {DC 8-80V 50A High Precision LiFePO / Lithium / Lead Acid Battery Tester Coulomb} you can find on ebay for 23 dollars for the 50...

just make sure you connect your panels in series to increase the voltage. Mppt requires the high voltage panels to give you a increase performance. Mppt won't give you any increase amps from one panel, but it will at least work just as good as your pwm controller. I always heard that mppt only...

fully charge you should be getting 12.6 volts, below is the voltage versus percentage. The 10.9 volt you get is that the no-load voltage? because that is almost empty. 9.9v = 0% 10.5v = 2.9% 10.8v = 5.0% 11.1v = 8.6% 11.4v = 36% 11.7v = 62% 12.0v = 73% 12.15v = 83% 12.3v =...

some of the older 12 volt receptacles where rated 15 amps, I don't know if the newer plastic ones can handle the 15 amps. If it has a 15 amp fuse in the fuse box it will. But the weak point is always going to be the the actual 12 volt plug on the item. The cheap ones are known to melt at...

on mine I just cut the plug and put a quick disconnect connectors on the plug wire, so I can hooked it up to a cigarette adapter or the wallwart, whichever is more convenient. The unit uses a max of about 3 amps even with all 4 batteries charging. If you can find a 12 volt plug that fits the...

18650's are probably the best rechargeable batteries for flashlights. they outlast any of the AA batteries. Even if you only need to charge AA, maybe later you might move up to the more powerful 18650. They hold their charge extremely well.

the opus btc-3100, is the best of the small cell chargers. I use it to test capacity on the laptop batteries (18650) . for those batteries it can charge 2 of them at up to 2 amps each or 4 of them at 1 amp each. It can also discharge 4 of them at 1 amp each, that the highest discharge rate of...

go to the hurriedyear.com website someone there has a sprinter and he shows how to run an AC with solar, he does it with agm batteries 780ah (3x 260ah agm each weighing 162 pounds total weight 486 pounds). His website has alot of pictures on how he got his van setup and the parts he used. But...

However this would raise the question of why? before you build larger lithium battery packs everyone needs to start small. Small lithium battery pack would be just as good as a much larger battery and will provide usable power. Putting it together and getting it to work will be a good learning...

your idea sounds good, dc balance charger will easily crank up the voltage to fully fast charge a 4s battery pack. It takes the 14 volts from your alternator and boost it up to the 16 volts you need and there is no chance to overcharge your battery pack. Your battery pack will be under 50 ah so...

the other option is to make a 3s 11.1 volt battery pack. Thats what all the goal zero lithiums are. I made a 94ah li-ion 3s battery pack with 168 laptop batteries. The 3s battery pack even though the voltage is lower ran everything my lead acid ran, never had an inverter kick off from low...

car alternator will put out 14.4 volts, battery wont be overcharged. But I would have a coulomb meter just to make sure your not putting more amps then you took out. TK15 High Precision LiFePO/Lithium/Lead Acid Battery Tester Coulomb Counter 50A (this one cost 23 dollars, they got ones to handle...

Thats the recommended charge rate for most lead acid, some require even higher. The manufacture of the particular battery will have the correct charge voltage. When a battery reaches 14.4 volts it is consider 80 percent charge then it absorbs at that voltage for several hours. If you dont use...