Datasheet

The PWR red LED on either board will light up to let you know its powered properly. While charging, an LED will also

be lit. For the USB only charger, a green done LED will light when the battery is full. For the USB/DC charger, the

charging LED will blink slowly (once every few seconds).

You can change the charge rate of each charger by soldering a resistor into slot R4 (for the USB charger) or RPROG

(the USB/DC charger).

The max charge rate of the USB charger is about 1000 mA. To acheive this charge rate, you can either solder a 2.0K

resistor on top of R4 (default 2K) - this will make the total parallel restance 1.0K or you can remove R4 by desoldering it

or cutting the trace to it and solder a 1.0K resistor in its place.

The max charge rate of the USB/DC charger is about 1200 mA. To acheive this charge rate, you should solder a wire

(short) on top of RPROG (default 4.7K). You can also change the rate to a different value by either soldering a resistor

on top of RPROG (and calculating the parallel resistance) or removing the resistor and soldering a different one in its

place. See the schematic for what values result in what charge rates.

For other values, use a parallel resistor calculator such as this one. Put the desired resistance in Rtotal and the current

resistance on the board into R1 and then solder R2 on top.

Important Note! Never charge a battery faster than 1C (so a 1300mAh battery should be charged at under

1300 mA) and we suggest staying at or below 0.5C Check the datasheet of the battery for more information

about your cell