SparkFun Sunny Buddy - MPPT Solar Charger

Product Code: SPF-03376
Availability: 3-5 business days
Planned delivery date after ordering: 2020-10-29
Ex Tax: 26.12€


This is the Sunny Buddy, a maximum power point tracking (MPPT) solar charger for single-cell LiPo batteries. The output of the Sunny Buddy is intended to charge a single polymer lithium ion cell. The load should be connected in parallel with the battery. By default, the Sunny Buddy comes set to a maximum charge current of 450mA with a maximum recommended input of 20V (minimum 6V). It’s recommended that batteries not be charged at greater than their capacity rating; thus, the smallest battery that should be charged with the Sunny Buddy is 450mAh.


  • Input voltage: 6 V to 20 V
  • Maximum charging current: 450 mA
  • Solder connector DC input
  • Solder connector for miniJST with a lipo battery 3.7 V
  • Built-in MPPT controller - LT3652

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