[Product Revision] TailBat with Battery Management that doesn't suck

[Kinonsc]

Replace the Battery Management IC with one that:

• Has low voltage cutoff (to prevent damage to battery)
• Has no low current cutoff (interferes with long runtime and using deep sleep)
• Battery charge & state info (via I2C with internal switch to connect/disconnect from Grove port)

[Cairnus]

The current one does suck, lol. Mainly only good as a UPS or if you need to run your thing for only a few hours since you can't sleep for longer standby use.

[Ifantus]

lots of good things in feature forum!