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Battery chargers and DC-DC converters to power Arduino, ESP32 and robotics projects safely from lithium cells or 12–24 V supplies.
Charge single-cell 3.7 V Li-ion and LiPo batteries such as 18650 cells from USB, with over-charge and over-discharge protection.
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Converts 4–35 V down to any voltage from 1.25 to 30 V at up to 3 A — power 5 V boards from 12 V batteries or solar panels.
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