The CANmod.gps includes a small coin cell battery of type CR2032. The battery is used to retain satellite orbit knowledge when the module is not powered, allowing for faster time-to-fix. The battery life depends on how the module is used and will typically last several years. The module works without a battery installed, but will perform a cold-start at startup extending the time-to-fix.


The battery is disconnected when the module is powered by the supply lines to avoid unnecessary battery drain.


The battery can be replaced by unscrewing the backplate and inserting a new battery as illustrated below.


Internal CR2032 coin-cell battery