1st one couldn't get batteries out of unit, sent it back to company with 12.00 to get it repaired. Coast said they couldn't remove batteries, also. they sent me a new one. 2nd time the same thing happened. But this time as soon the light started going weak, tried to remove batteries what happened same thing. Batteries stuck!!!!!!! so I tried every which way to remove them to see what's was the cause. no luck. so I cut batteries out of handle, found batteries went bad in shell. they need to add a sleeve of paper or electrical paper around batteries as to give it more space to remove batteries even if they leak or go bad. I used Costco alkaline batteries.