In this battery plugged a Panasonic cell NCR18650B, so here is true the statement in terms of capacity. The battery is very long, since the PCB sits in a plastic holder. The PCB itself with 2 Mosfets is OK, no more, no less. So Posistiv is the good workmanship of the battery, negative are the dimensions. Quite a few flashlights come with a protected battery, which is almost 70 mm long and has almost 19 mm in diameter.