open-source

Sunny Buddy Solar Charger

Charge a single-cell LiPo battery through an LT3652 switching converter with an adjustable solar input-voltage setpoint.

Remix this board → View source on GitHub ↗

License: CC BY-SA 4.0
Source revision: v13
Last mirror: Sep 10, 2026
Git commit: 3041064d76c5

About Sunny Buddy Solar Charger

Charge a single-cell LiPo battery through an LT3652 switching converter with an adjustable solar input-voltage setpoint. Original two-layer design for adaptation to ViaGrid; rerouting and testing are required.

Published design files

Power & charging · two copper layers
Open source (CC BY-SA 4.0) · SparkFun Electronics
Mirrored at 3041064d76c5

Canonical source stays in the upstream git repository (and in WalGit after a successful mirror push). Generated renders and 3D models use artifacts/viagrid/sunny-buddy/3041064d76c5fa103a498e55c80259d8e6d31aa1/9a9ae59652e95661 on the artifact CDN and are not checked into git.