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Could someone please tell me what some lifepo4 "drop in" battery manufacturers mean when they call their batteries 12.8V batteries? I have seen this painted on the face of Power Queen, Chins, and other Chinese brands. Lifepo4 batteries (12V) should charge with 14.6 volts and at rest should...

I have a Giandel inverter and have experienced some problems with it (I think). It supposedly can generate 2200 watts-4000watts (can't remember the exact number). I did some very rough testing with it with an electric kettle that uses 1500 watts of power. I attached the kettle directly to the...

I found this battery company on Amazon. I asked them about their claimed low temperature charging protections because their Amazon blurb seemed not straight forward to me. I basically asked in 2 separate questions if it had BMS low temp protection at 0 C or if it has a built in heater...

Last year I bought a 200AH LIFEPO4 battery with the low temp warming heater & bluetooth phone monitor for an RV. I paid over 2000 dollars for it. I would like to add another 200AH battery manufactured by another company which also claims to have a low temp warming heater and is much cheaper...

I hooked up the Renogy 50A DC-DC charger to a 90 watt GoPower solar panel to do a quick test of the charger, but the charger PV light failed to light up. I checked the manual's troubleshooting guide and saw (for the first time) that there is a 15V input threshold that needs to be met before the...

I have a Renogy 50A DC-DC charger-controller. The unit will take a maximum of 25A of PV and 25A of alternator charge simultaneously. As I understand it, I am stuck with only 25A of solar even if I am not connected to the truck's alternator. My question is: is it possible to not connect to the...

I am building the 400 watt DIY solar system with the Renogy 50 AMP DC-DC solar controller based on Will's blue print. I ordered the appropriate circuit breakers from Amazon. One issue I found after receiving the breakers is that the terminal studs on the breaker are only 1/4 inch diameter...