DJI Mavic Mini Battery Checker, are StartRC Mavic Mini accessories any Good? Its a handy tool, but a bit of a luxury. The Battery Checker Available from Ebay
You don’t need it, OR Do You?
If you have multiple batteries then this tool could prove handy.
Its easy to test your batteries percentage, so you can save a bit of time if your not sure which batteries have those extra few minutes of flight time, if you’ve been flying at multiple locations.