The board includes the charging circuit, the JST connector for the battery, and a LED that indicates the in progress charging status.
If the JST connector is not suitable, you can take the voltage for the battery even from a 2-pin strip connector that eventually can be connected to a cable adapter for your battery.
The power is taken from the mini-USB connector that can be connected to any PC or mobile phone chargers.
||100mA / 500mA
||1.15” x 0.5”(29.2 x 12.7 mm)
||0.1 oz (2.6 gr)
datasheet (english version)