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With a car alternator that puts out 14.4 volts, it should never reach a point for the bms to activate at 14.6 volts, especially while engine is running and using power. The only problem would be if the battery were to go out of balance then the bms will activate, but since the car is running the...

Yes you should be able to parallel more then 2 lithium. Once you hook them up together they equalize and you can charge and disharge them together. My house battery is 4x 55ah lifepo4 batteries parallel together, they been hooked up together for the past 3 years without issues. Just make sure...

on my 12 volt fridge, I added a 120mm fan to the compressor exhaust and using 4" inch flexible ducting vent it up through the roof vent. Before the fridge plastic vent was getting over 110 degrees, heating up the entire fridge. Now its cool to the touch. I'm going to isolate the solar charge...

inside my van in the front uninsulated section with the windows closed it gets up to 150 f, this is in southern california. I don't have the ARB fridge but the 26L 12 volt fridge I have when it gets in the 90's (back of insulated van) it has to run more to stay cold. I measured the temperature...

I got xt60 connectors on everything for the past 8 years, they are on my 220ah lifepo4, on my smaller 31ah and 65ah lion packs, i got them on my fridge my roadpro cooker, all my chargers. They are inexpensive and easy to put together with a solder gun. Some of the clones are hard to take apart...

13.1 volts to 13.3 volts is normal for lifepo4, I have my lifepo4 for 3 years and thats the voltage I see when nothing is being used. If you see 13.3 volts with no load its good. Once you start seeing less then 13 volts with no load the battery is almost dead. With lifepo4 it goes from 13.0...

Without being able to check the individual cell voltage, the battery might have gone out of balance. If 1 cell is reading higher then the other 3 cells, the overall voltage would be 14.4 volts while the battery is still undercharge. i know with my 4s lifepo4 (not a battleborn) I had trouble...

I would say maybe 8 amps at most out of that 170 watt panel and a pwm controller, if it averages 7 amps that would be good. I used to use a 240 watt 36 volt panel and pwm controller and it maxed out at about 6.5 amps. I think they just wrote what the panel is capable of producing in the best...

with mppt you do need higher voltage to get an increase in amps. With a 21 volt panel you won't see any improvements over pwm. I never saw any with my controllers. As an example I used a 120 watt 21 volt panel and connected to both a pwm and mppt controller, both gave me 6 amps output. When I...

You can use a boost converter, it will easily boost your 12 volts to 19 volts. And they cost about 6 dollars for the smaller 6 amp ones, a larger 20 amp for larger laptops will run you about 20 dollars. They got heat sinks on them but you can also add a small fan to keep them cool. You need a...

tk15 coulombmeter works good for me, I got 5 of them on all my batteries. The 50 amp model cost about 25 dollars, the 350 amp model cost about 50 dollars. They work with any battery lithium/lead acid. Counts amps in/out of battery. If you used 25 amps today, you know tomorrow you have to put at...

it weighs 11.5 kilograms (about 25 pounds) for comparison a 100ah battleborn weighs 31 pounds. I always do weigh comparison when dealing with lithium, some generic cells weigh less then genuine cells. I would have to see the inside of the battery to decide if its worth it. Someone like...

Is the wire you are using pure copper? some wire sold is copper clad (speaker wire) . I use to buy the cheapest wire and notice voltage drop problems. I buy pure copper wire now. Also are you using the oem 12 volt plug (cigarette adapter), those types of plugs aren't the best for getting max...

for FLA lead acid it's 14.4 volts, the 2 agms I have a full throttle and also an odyssey both require 14.7 volts. But the specs call for 14.7 volts at 77 degrees, at 50 degrees it specifies 14.8 volts, and at 104 degrees it specifies 14.3 volts. So ultimately it depends were your battery is...

i wouldn't put the controller in the engine compartment. Its too hot for it, it needs to have air to cool down. At 104 degrees farenheit is the max where it produces the best power, at 158 degrees it shutsdown to protect itself. Engine compartments gets into the 150's. I would put it in the...

All you need is a 10 amp pwm controller, you can find those on ebay for less then 15 dollars. You will need to modified the output plugs of the goalzero connectors (8mm) to fit the controller. For a 100 watt panel (21 volt) an mppt controller won't give you any extra amps for the added cost and...

72ah lifepo4 is comparable to 144 ah lead acid. 16 pounds versus over 120 pounds plus. 500 dollars ain't bad for 72ah of lifepo4. They are easier to maintain then lead acid, unlike lead acid you don't have to fully charge everyday, you can leave them at 50 percent for months at a time with no...

A while back I had a similar problem, I had a dead battery. First tried a 4s lifepo4 jump pack to try and start it but it wouldn't do it, then I tried using a fullriver 27ah agm to start it (using the same alligator clips as the lifepo4 jump pack), that also wouldn't start but it did crank very...

For SOC get a tk15 coulombmeter, you can get a 50A one for about 25 dollars, if you use more amps they have larger models. Though they are mostly for lifepo4, they work on any battery . You program the battery capacity and the battery full voltage (example 14.4 volts for lead acid) . When the...

get one of these buck converters, cost about 8 dollars. They drop the 18 volts to 12 volts. Most 12 volt devices won't run long at higher volts, I lost many fans,pumps, led lights from voltage surges. I prefer these buck converters over the 12 volt stabilizers (which output voltage can be below...