This tool clips on to Makita 18v batteries and allows you to see the diagnostic information stored within. Similar functionality to the Makita BTC04 which retails @ ~£200.

The product requires a USB C connection (does not take power from the battery, as under certain locked conditions the batteries do not provide any output before repair). Easy to power off a small battery bank.

Some of the useful info this device will show you (rest is visible on photos)

- Health of the battery 

- Voltage and temperature of the individual cells

- Remaining capacity of the battery 

- Any over-discharge or over-load

- Manufacture date

- Number of charges

- Unlock any software locked batteries 

This tool is great for anyone with multiple 18v Makita batteries - whether that's allowing you to check the condition of batteries before buying secondhand, repairing or maintaining your own or a fleet of batteries.

Note: This device cannot override BMS locks caused due to bad hardware, ie a bad cell, broken thermistors etc. It should provide diagnostic information to help identify the cause of the lock, but this device will not unlock in those or similar situations.

This device is primarily a diagnostic device, with unlock capability in a few small situations. If you don't know what is wrong with your battery this will help you understand the issue but won't definitively fix it. Additionally it is great for those with a few batteries to understand the health and rotate batteries based on health.

The housing is 3D printed in PETG (not cheap PLA) to give this product longevity. Colours of the case and accenting may vary, but for the most part the case will be grey (as shown) or black. The accenting will be red (as shown), grey or yellow.

Custom colours can be explored but will have a large lead time (few weeks), and minimum qty will apply.

This is not a product manufactured by Makita. It works with Makita 18v batteries.

Multiple available.