FiTspi 18V/21V 1A Universal Battery Charger with Indicator Light for Cordless Drill and Chainsaw, Power Adapter for Lithium Batteries AC 100-240V Input with 5.5×2.5mm DC Output
£2.19Input: AC 100-240V, 50/60Hz, Output: DC 21V, 1A (1500mA), up to 31.5W. DC Plug Size: 5.5mm x 2.5mm, Cable Length: 50 cm.