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This is a Lithium-Ion Charger, it can charge either 1 cell (default), or 2 cells in series (aka 2S), depending on a solder jumper.

The board comes configured for single-cell charging, to change to 2 cell in series close the "SET" jumper with a blob of solder as shown in the picture.

Recommended Input Voltage: 12v, Max 15v

Based around the TP5100 Charge Controller IC, google for datasheet (in Chinese).

Do not connect the battery backwards or all the magic smoke will escape.

Important Notes About 2-Series Charging
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~­~

The charger does not implement cell balancing it does not monitor the voltage of the individual cells, you should use protected cells so that if either cell charges up before the other it won't be over charged. When putting cells in series they should always be at the same state of charge (ie, fully charged) when you initially connect them, and should be of the same capacity (as close as possible), it's no good putting a 500mAh cell in series with a 1500mAh cell, that won't work well at all!

DIY Charge Current Mod
~~~~~~~~~~~~~~~~~~~

The charger is configured for 2A charge current, to reduce this you could replace the two parallel 0.1 Ohm resistors indicated in the picture. Use two parallel 0.2 Ohm ones for 1A, two parallel 0.4 Ohm ones for 500mA.

See all my current listings:
http://goo.gl/L40ps7

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  • Seller location: Christchurch City, Canterbury, NZ

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