The box also contains a solar float charger from Brunton Solar, it can handle up to 7amps and 100watts of solar power. It will, when its hooked up to a panel finally, keep the battery charged at a healthy 12.5v
I’ve used it to charge my cell phone and laptop twice, and so far the voltage hasn’t dropped below 12.5, so no need to charge it yet.
The total cost will be around $300, the battery was $56 and the charger was $29, most of the money has gone into the box and wiring. The panel will be $150 for a 25w 1.5amp and will probably get mounted on the shed in my back yard.
This is what I’m doing because I can’t afford a grid tied solar system for my house … and this house probably isn’t worth it, and I also can’t afford to convert one of my cars to electric. You’re damn right I deserve to win the lottery. Change starts at home.