i ordered this battery expecting it to get a constant output of 12 volts at least 10 amps for my astrophotography. during my sessions the volts will drop down to below 11 and my equipment will shut down. the battery is completely full when this is happening so this is an issue with the unit itself. i would think that this battery would be able to power a 12-volt 10 amp system and it's far from being able to do that. unfortunately i may have to return this because the only way to power my equipment is to use the ac portion of the battery which waste electrical charge while converting from dc to ac.
upon receiving this and reviewing the instruction manual i could tell this was not the right product for me. it requires being used ev so often to keep the battery functioning and that’s a hassle. also, it does not offer very much power. having just gone thru hurr. beryl and no lights i can tell i need something more powerful. it’s inexpensive and that’s good. but just not enuf ooomph for me and what we need. i will be returning this for something else.
i fully charged this product before i left home. i went camping within 2 1/2 hours. battery was completely dead. let it charge with solar panels did not charge at all plugged into car for two hours did not register charge returning
wouldnt charge past one bar. missing instructions. missing the 10 piece attachments that came with it. worked great before storm. after storm was not working.
first day i was able to charge it right up with the solar panel. it took all day, but it finally did it. so, i plugged in a few items (table/emergency light) to charge them up, and it did it. next day, i woke to the battery being drained down to about two bars, so i disconnected all my devices and put it in charge mode. solar didn't charge it at all, so i plugged it into the wall. after two hours...the bottom bar didn't even move. very disappointed in this device since it's suppose to be a backup charging source...but you can't rely on it. huge thumbs down!!!
电池电压下降
电池维护
电池耗电快
电池问题
电池问题
电池问题
电池耗电问题