SparkFun Adjustable LiPo Charger _maker Solder alloy uniformly on all

Solder alloy uniformly on all pins of SMD

A bit of soldering is required to attach the matrix onto the backpack but its very easy to do and only takes about 5 minutes

so you can modify them to make your own custom watch enclosure

see the Halloween Pumpkin project

the maximum output power will be 2 x 3 Watts)

SparkFun Adjustable LiPo Charger _maker Solder alloy uniformly on allThe SparkFun Adjustable LiPo Charger is a single cell lithium polymer (LiPo) and lithium ion battery charger. Because its adjustable, this charger will be able to safely charge most of our single cell batteries with ease. With its onboard charge rate selector, you will be able to set the maximum amount of current to charge your battery from 15mA to 500mA. Once the board is configured for the battery, you can connect power from either a micro USB cable