Your old battery can no longer be fully charged? You need a second battery for double the amount of play time? Then don’t miss out on this article. This lithium-iron phosphate battery operates at 6.4 V. The voltage is particularly important when choosing the right charger. The unit milliampere hours (mAH) indicates the amount of charge that can flow through the device in one hour. With this rechargeable battery it is 900 mA. Your old LiFePO4 battery should not be disposed of with normal household waste. Electrical and DIY stores offer yellow bins for professional disposal. The disposal points provided by local waste disposal companies also offer professional disposal.