I bought one of those battery booster packs at an auction. i did not come with the charger, which is one of those wall-wart transformers, rated at 12v.... Online shopping from a great selection at diy & tools store.. Dirt cheap diy battery charger a very simple design you can build yourself from salvaged parts by julian edgar. click on pics to view larger images.
Well my favorite battery died on me, so i decided to refit it with old 18650 cells that i have laying around. and now i finally have a use for those old. Being a diy’er is a lot like being a gun guy. any self respecting gun guy has (at one time or another) bought a gun simply because he had either a.... If your battery-powered booster pack for jump starting car batteries wears out, rebuild it with a new battery for much less than the cost of a new booste.
