Questions tagged [battery]

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8
votes
4answers
71k views

What should I do with leftover sulfuric acid from a sump pump battery backup?

In our new house, we found that a previous owner installed a sump pump battery backup unit, which is nice. The battery in the system is like a car battery, but it's the kind where you initially add ...
2
votes
3answers
2k views

How can i set up a Solar Panel to charge a 12v DC car battery and power a Raspberry Pi?

I've pulled together a few spare parts that i've had laying about for ages now and I finally have a bit of time to try do something with them. I've got a solar panel which puts out ~22vDC @ ~2Amps ...
5
votes
5answers
2k views

Sump pump automated battery backup

I have 1/3 horsepower sump pump currently plugged into my home's 120 volt outlet. I have a 105 amp hour 12-volt battery and a 1200 watt pure sine inverter ready to go when the power goes out. The ...