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This Lithium Li-ion 18650 Battery Charger Board is a compact DC-DC step-up boost module designed to convert 5V input (e.g., solar panels) into a stable 4.2V output for safely charging 3.7V 18650 batteries. Featuring adjustable output voltage up to 27V and a max 1A charging current, it offers versatile, efficient, and portable power management for professional and DIY electronics projects.
| ASIN | B07SFMKHXN |
| Manufacturer | LOLOVI |
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