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BZen-BC1 is an online community of volunteers and other users, with a strong, shared purpose of of furthering awareness, education, innovation and development of full open-source solar power micro-generation solutions.

The BZen-BC1 is proof of concept (POC), bench environment Lithium Polymer (Li-Poly) battery charger (BC).

The goal of the BZen-BC1 project is to design a functional battery charger that can be assembled and operated by a person unfamiliar with or new to DiY electronics.

The baseline requirements for the BZen-BC1 are:

  • The BZen-BC1 shall charge a single cell (1S1P) Li-Poly battery which complies with UL 1642 or IEC 62133
  • The BZen-BC1 shall not require soldering to connect components
  • The BZen-BC1 shall be constructed of components readily available on the open market

The project home page is

Except where otherwise noted, all work on the BZen-BC1 is covered under a Creative Commons Attribution-ShareAlike 4.0 International license (

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