# ThinkNode M1 Range Testing and Battery Optimization

> In-depth performance review of the ThinkNode M1 covering standardized urban range testing (1.71km achieved), battery optimization (4-5 days with GPS off), firmware updates to InkUI, and antenna considerations for maximizing Meshtastic mesh network coverage.

## Details

- **Difficulty:** beginner
- **Project Type:** tutorial
- **Board Types:** nRF52840
- **Devices:** elecrow-thinknode-m1
- **Firmware:** Meshtastic
- **Use Cases:** Mesh Networking, LoRa & WAN, Portable Device
- **Links:** Tutorial: https://adrelien.com/blog/thinknode-m1-review-e-paper-display-handheld-with-premium-build-quality/, Review: https://www.lorameshdevices.com/blog/meshtastic/elecrow-m1-meshtastic-review-e-paper-display-awesomeness.html

## Tags

`meshtastic`, `range-test`, `battery-optimization`, `lora`, `firmware`, `e-paper`, `performance`, `off-grid`

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