there is a utube for changing the battery in your 908pro

https://www.youtube.com/watch?v=VgRuZlL5WAc

watch the video 3 to 5 times before you try to do it

i got 2 batteries from ebay $20 each scanner much better last 7 hours doesn't black out when you using it

there is a small curict board on top of batteries you have to un tape "WITH OUT BRAKING IT"

IF THAT HAPPENS YOU HAVE NO MORE SCANNER

don't do it if you think it's over your head or you will lose your scanner

i did it and it came out good  be carefull go slow lot of luck for you

this is just to let you know there is a way a round this battey problem when out of the 12 months