Features:1.LED lead acid battery BMS capacity indicator voltage meter.2.Can display the battery power, you can also plug directly into the phone or the 5V equipment charging.3.Suitable for all kinds of outdoor power, mobile power, instrumentation and other equipment additional battery power voltage display and additional USB to charge the phone and other functions.4.Uses synchronous rectification Read more about 12V DC Digital Car Motorcycle Voltmeter Voltage Battery Panel Meter w USB 5V 2A Output LED Digital Display Voltmeter Voltage Meter Volt Tester Dual USB[…]