T-Echo Lite Frequency:915MHz With Shell [H747-A] QZSS Battery Power Management Chip:

QZSS Battery Power Management Chip: SGM41562

1 inches Half Circle

- SRAM 520 kB SRAM

you can buy it by yourself if you need it

ultra-low power consumption

T-Echo Lite Frequency:915MHz With Shell [H747-A] QZSS Battery Power Management Chip:T Echo Lite is the Lite version of T Echo, the Lora+NRF52840+e paper combination is the most low power combination solution verified so far, it can be used as a Lora node adapted to Meshtastic firmware. Specifications MC NRF52840 Flash 1MB RAM 256kB Programming Platform Arduino IDE, VS Code Wireless Connectivity Bluetooth 5, Thread, ANT, Bluetooth Mesh,802. 15. 4, Zigbee, 2. 4 GHz proprietary Battery Measurement Control IO 0. 31; ADC: IO 0. 2 Tech