SD4 III 50W AC 4A Charger (UK)Given that most cars, aircraft and boats rarely use anything larger than a 4S LiPo, and since most of us prefer not to top up at the field, track or lake, this neat single output 50W balance charger is likely to be the perfect workshop accessory, especially as it also supports LiFe, LiHV, NiMH and NiCd chemistries. Supplied with an AC power cable and a Deans HCT charge lead the SD4 III uses a simple two button interface to charge anything from 2 to 4S