【How-to】How long does a porter cable battery take to charge

An 18V (or 20V Max), 2Ah battery, for example, has 5 cells in it and each one of those cells is a 3.6V, 2Ah cell (FIG 2). … The bigger battery (FIG 1) has two packs of 5 cells for a total of 10 cells. The cells are the same 3.6V, but have more capacity at 2.5Ah.