TYT MD 380, Retevis RT3, Radioddity GD-77 USB Charger
thingiverse
USB Charger for Popular Chinese DMR Radios You'll need the following components to build a reliable USB charger: 1. A DC-DC step-up converter (MT3608) for efficient voltage conversion 2. A charge controller (TP5100) to regulate charging current 3. A compact fan measuring 25x25 mm for optimal heat dissipation 4. Two heat sinks, each with dimensions of 8x8x5 mm, to absorb excess heat If you're looking to create a USB charger specifically for the following Chinese DMR radios: * TYT MD-380 * Retevis RT3 * Radioddity GD-77 * Baofeng DM-1702 This project is currently in progress and may be updated. The source code is included for reference. Next, I'm working on designing a car charger that should be even more straightforward to build.
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