SparkFun Forums 

Where electronics enthusiasts find answers.

Tips and questions relating to the GPS modules from SFE
By dan_lake
Im looking for a reliable power supply for my arduino and GM862 setup. I have tried a standard 9v battery but the module seems to turn itself off after a short time. I need something thats portable and can power the units enough to send sms messages.

Any thoughts?
By asmithmd1
Here are two 9volt batteries that I have used
The C cells have powered my GM862 for over 6 hours
By dan_lake
and those powered arduino aswell as the GM862? I have a feeling the the arduino demands large ammounts of current?