i have a brand new XR 5AH battery and when used with my dc 900 it really doesnt last that long, managed to do a strut change on one side and when i got round to the otherside it wouldnt undo the wheel nuts, gun was cutting out, noticed the battery was down to 1 bar from what i think was fully charged. i didnt even use the dewalt for all the bolts either as it was to big to get in place.
