Tally’s rechargeable battery is designed to last 13 hours of continuous use. For the average user that means charging once every 1-2 months. It takes 1-2 hours for Tally Pro to fully charge.
To maximize battery life Tally Pro will automatically turn off after 10 minutes unless timing. The display will dim after two minutes of inactivity. To turn Tally Pro off yourself, press and hold the dial for one second.
When your battery is getting low Tally Pro will remind you to charge by flashing the remaining battery when powering on or off. Otherwise, you can check the battery status by plugging or unplugging the USB-C cable.