Here we are with our solar powered pool heating system... we came across some old discarded Edison Iron Nickel batteries, and for the hell of it, put meters on them, and found 10 that had .3 of a volt in them. Put them on a charger, charged them up, and by that night was filming a video with the light powered by the Edison batteries. Now i'm using them to run the inverters and the 12v pump.
At present, these batteries are running the following:
- 12V utility pump (Intermitantly)
- Rechargeable portable speakers
- Cell phone