I have a few various car chargers that accept USB cables, attaching to various devices with a mini-USB connector. Each has its own output, from 500 mA to 1000 mAmps. I just purchased a new device (Callaway uPro GPS). Its car charger has an output of 500 mA.
Can I use one of the units with higher or lower output to charge the battery? Is the highest charge rate determined by the battery or the charger? It is a PITA to always try to find the original charger amongst all of the gear I carry. I would prefer some options!
Thanks Ken K