for Makita 18V/20V Li-ion Battery Convert to DIY Connection Line Output AdapterFeature :1. This battery adapter has been tested to work with BL1840/50/30/60 18V series lithium batteries.2. not suit for BL1813G/1815G;3. Made from plastic injection,it own high level performance ;4. No protection PCBA ,so pls take care of battery,No expose to hot weather;5. Fuse over current protection and switchNotice :1.Can not be used for charging batteryPacking inlcudes:1 pcs DIY adapter onlybattery not included.