HiKOKI 36V BSL36A18 Lithium-ion Battery, Multi-Volt, 2.5Ah, 0037-1749,

Compatible Hitachi Koki cordless products: [18V products] Can be used (excluding the cordless fan UF18DSDL) [36V products] Products compatible with Multi-Volt storage batteries Comes with a 2-year warranty. Cooling Support Number of charge/discharge cycles: Approximately 1,500 times *Depending on conditions Battery level indicator (4 levels) Voltage/Capacity: 36V/2.5Ah / 18V/5.0Ah (automatically switches when battery is installed) Charging time: Approximately 25 minutes (when using charger UC18YDL) Can be used with conventional 18V products (automatic voltage switching).