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Hello! A newby question: Some time ago I bought a 12v 200 Ah lithium battery on Aliexpress. It came with a 110v charger that looks like a brick with a cord that plugs into the wall and 2 allegator clips for 12v output to the battery. Is it ok to mix the wall charging current with the solar...

I have a 12v 200 Ah lithium battery in my trailer. Can I add a 12v 300 Ah battery in parallel (of a different brand) to make the bank 12v 500 Ahs ?

I don’t know if you guys are going to understand this question, the title may not be very good, but… I have a small trailer conversion that is wired for 120v hookups. After I bought it I installed a 12 v solar system since we plan on doing some dry camping also. I have 3 appliances that run on...

I have a cargo trailer I have just installed a 12 V solar system in. The trailer's rear lights come on with the car's battery. Like the car, the trailer's chassis uses the negative ground of the car for it's tail lights. Can I ground negative cable of the trailer battery to the trailer's chassis...

If I leave the switch on between the battery and the solar charge controller all the time, will it run down the battery — even though there is no other load? I guess it’s kind of a dumb question, but I have never used my setup yet. …well I guess if the solar is on too it would top off what...

Greetings, I'm building a solar system with 40 amp MPPT, a Renogy 20 amp DC-DC charger and 200 aH LifePo4 battery. How do I wire these up to be able to charge my battery using DC-DC charger and MPPT solar charge controller at the same time? Thanks, David