Indicators - Diagnostics with indicators communicate battery status. Easy to install or remove: First install the adapter and tighten, insert the battery into the adapter. Then, the steps to remove the battery for charging or replacement, release it from the adapter and charge or replace the battery. This adapter allows you to use lithium batteries for on for V11 and allows you to enjoy the benefits of extended runtime of existing lithium-ion batteries on for. Made of high quality ABS plastic, strong, with safety circuit protection, built-in intelligent control system. and safe, convenient to carry and easy to use. High-quality components: The internal circuit board is assembled with high-quality components to ensure efficient and stable power output.. It provides protection against overvoltage, overcurrent, overheating and short circuits. Multiple protection and safety system, easy to install and remove. The products are only used for flexible conversion between a tool and another