ESP32 ESP8266 4x 18650 Battery USB Power Bank Shield Holder V9 3V
4.6 (121) · € 5.99 · En Stock
Feature:Input overvoltage protection, output overcurrent/short circuit protection, charging timeout/overvoltage protectionOutput current up to 3A, efficiency up to 95%With LED identification percentage electricity meteringParameter:This power bank supply has a built-in lithium battery protection IC with overcurrent, ov
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