Questions tagged [battery]

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i'm having trouble with battery not charging

I think I have a battery going bad. Charged over nite and light read charged. but in the first 15 mins it died on me how long does it take to charge a hitachi battery 18v
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Using excess energy during float phase - am I using up my batteries' cycle life?

I have a hybrid power system: 3kW solar; 2kW wind turbine; 1kW water wheel, that feed a 48v (flooded lead acid) battery bank. Presently, after absorption charging is complete and the system goes into ...
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Can I connect a battery reserve to my solar attic fan?

I have recently purchased a solar powered gable fan for my attic. This fan will only work when the sun is up, but I would like a little more out of it during the early evening hours (no sun). Is ...
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Porter Cable NiCd 18V batteries - Lithium replacements?

Does anyone here have any experience with these tools and battery options? What about chargers? I understand the need for a different charger; my specific question is whether anyone has experience ...
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33 views

Battery terminal in wireless light switch corroded

I have a wireless light switch in my garage which uses 4 triple-A batteries. When the switch quit working recently, I took off the cover to replace the batteries and saw that the terminals were all ...
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2k views

Wiring a Tesla Powerwall into an Existing Solar Install

I've been looking at the cost and feasibility of augmenting my existing 5kWh solar install with battery-backed storage to shift usage of the solar power that I generate to more useful times of the day/...