ISDT 2S 3S 4S 5S 6S BattAir Plugin Voltage Checker

Makes my LIPO's Smart for $5!

The device performs as described. The plugin interacts seamlessly with my iPhone via the bluetooth connection. My only concern is that the indicated battery capacity (79% after full change) doesn't match the backup voltmeter which reads at 99%. The BattAir app is able to discriminate all the batteries I have registered.
All in all the plugins do a great job. I'm glad for ther convenience.

Has good attributes especially if you have isdt charger. Discharge takes days.

I use these to make sure a battery goes to storage charge if I don't use one, or take it down to storage charge in use. The calibration of the cells needs work, it's not always accurate.

These things are awesome. They make monitoring my large collection of batteries so easy. I used tk try and track them on a spreadsheet and use color-coded covers to mark their charge state. Now I just open an app. And the discharge to storage feature gives me peace of mind.