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Hengjiaan 5PCS 5V Mini USB 1A Lithium Battery Charging Board
Descripition: Material: PCB + iron Chipset: TP4056 Input voltage: 4.5V~5.5V Fully charged voltage: 4.2V Charging current: 1A adjustable Working temperature: -10'C~85'C Charging method: Linear charging 1% Charging precision: 1.5% Charging indicator: Red light charging£¬ green light fully charged Interface: Mini USB Great for DIY project