Features: This adapter allows lithium batteries to be used with 18V Ni cordless power tools, providing extended run-time for your existing 18V tools. Maximum initial battery voltage (measured without a workload) is 20 volts; nominal voltage is 18V. Compact size and lightweight design for easy portability and storage. Constructed from durable materials for safety and wear resistance. Professionally designed to enable conversion without power loss. Notice: For use with Makita 18V Ni cordless power tools only. Not intended for charging power tool batteries. This adapter is not compatible with any chargers. To charge your batteries, use the original battery chargers. WARNING: Read the instruction manual before use. 1. To reduce the risk of serious personal injury, turn off the tool and remove the battery pack with adapter before making adjustments or installing/removing attachments or accessories. Accidental start-up may cause injury. 2. Do not store or carry the adapter with the battery installed in a way that allows metal objects to contact exposed battery terminals, as this may cause a short circuit or fire hazard. 3. Use only compatible batteries with this adapter. Incompatible batteries may damage the adapter. 4. Using an adapter not suitable for your tool may result in malfunctions or damage to the power tool. Includes: 1 x Battery Adapter