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# LipoCharger

This is a simple but effective charger for LiPo batteries.  It has a higher
charge rate than the on-board charger on [TeleMetrum](../TeleMetrum), and
will be necessary for charging the batteries used with projects like
[TeleNano](../TeleNano) and [TeleMini](../TeleMini), which do not have 
on-board charging capability.

## Features ##

### User View ###

* Wall-wart power supply to our standard 2mm LiPo battery connector
* 1.0 x 0.4 inch board 

### Developer View ###

* Hardware Features
	* [Microchip MCP73837](http://www.microchip.com/wwwproducts/Devices.aspx?dDocName=en531507) Li-ion battery charger chip
	* Strain-relief holes for soldering to wall-wart leads
* Tools Used
	* [gEDA](http://www.gpleda.org/) for schematic capture and PCB layout
* Licenses
	* The hardware is licensed under the [TAPR](http://www.tapr.org) [Open Hardware License](http://www.tapr.org/ohl.html)

## Artifacts ##

The design files can be found on [git.gag.com](http://git.gag.com) in the 
project [hw/lipocharger](http://git.gag.com/?p=hw/lipocharger;a=summary).  

## Future Plans ##

We need to build and evaluate some prototypes, and review costing, before 
deciding whether this design will go into production.