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Notice: The new tracking number for China Post Ordinary Small Packet Plus only can track it have been ship out of China, not more Tracking information ,even it arrived or not .
Please do not freeloaders,if you can not accept without more tracking information .
Please choose China Post Air Mail if you want a full tracking info.
Tracking info of China Post Ordinary Small Packet Plus can be check here : www.17track.net/en
1, on-board precision voltage detection chip and power regulator chip
2, onboard four battery indicator LED lights, three colors display, red, yellow, yellow, green representing 20%, 50%, 80% and 100% of the electricity
3, set aside all the way battery testing interface, and two mounting holes located
4, PCB size: 22.2 (mm) x17.2 (mm)
12V battery power indicator segment