This is the 3.7V USB Charger, The red light comes on when the battery is charging
The light goes out when the charge is complete.
Do not leave charger unattended whilst charging
This charger is for small lipo batteries not over 600 mah
The connector suits Hubsan/UDI/Symatype Plug
Specifications
Input voltage: 5V
Output voltage: 4.2V ± 1%
Output current: 400ma
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