LI-ION High-Speed Battery Charger 2.5A (Without Battery) 110/240V High-speed FLASH Charger. Ideal for the larger 5200mAh Keis Battery Pack, but can be used to charge any of the Keis Portable Battery Packs.. Available with either a UK or EU power plug. Detailed Product Info For the fast charging of Keis Portable Battery Packs. Equipped with integral LED Status Monitor.