The new type 437 battery charger is specifically designed for the high-capacity type 593 and RSC7230 batteries. This type of battery is mainly used on Scanreco radio remote controls with colour display: RC400 In the standard version, this charger is supplied with two 7.5cm free wires for the supply. The new type 437 battery charger is compatible only with type 593 and RSC7230 batteries. It cannot be used with type 592, 590 and RSC7220 batteries. On the other hand, new type 593 and RSC7230 batteries can be charged either with old generation charger (type 434) or with the new 437 type. The only difference is the longer recharging time required with old version chargers.