Ats-20 Radio Manual -

Built-in rechargeable lithium battery (typically 3.6V, 800–850mAh) offering approximately 6 to 12 hours of runtime.

The ATS-20 typically has 5 buttons. Here is their real function: ats-20 radio manual

(Warning: Flashing firmware requires an ESP32 programmer and some skill. Not for absolute beginners.) Built-in rechargeable lithium battery (typically 3

Flip the power switch. You should see the logo screen followed by a frequency display. The top line typically shows the frequency, and the bottom line shows the signal strength (S-Meter) and battery voltage. Built-in rechargeable lithium battery (typically 3.6V