I think in that case an iPad might be a good companion as it has a long lasting battery, can be carried around and if it's a dusty environment it doesn't have b

I think in that case an iPad might be a good companion as it has a long lasting battery, can be carried around and if it's a dusty environment it doesn't have big problems with that. Would also make it easy to keep backups if you just take it back into your wifi/power area of the house from time to time to charge and sync.