Batteries & Chargers. These are all of the recommended batteries and chargers that I use for cameras, tools, and computers. The Schumacher charger is used to charge my portable 12v AGM battery, the van starter battery, and also can pump 15.5v into house batteries for an equalization charge. Samsung’s 17-inch Series 7 Chronos, it seems, was also a member of that club. keeps 80% of the cell’s original capacity in…