So i had GPSMAP 62 and they don't have internal charger, have to get batteries and use with provided wall charger. This is very annoying for me every time i open the back of the unit i have feeling that lock is about to break or get weaker, and then while i get batteries out i hardly ever close the unit back so its exposed to water damage during charging, not so much an issue at home, but if you in the nature and it start raining or you spill something you might ruin the unit.

Other than GPSMAP 64 what handheld units can charge battery internally?