seriously, my r01 ran for under 1 hour. I changed them out and the same thing happened. totally burnt by those f'ers.
Alkaline? Lithium? Rechargeables?
With alkalines, I've often run into bad batches, where brand new ones don't last worth diddly. Never used single-use lithium's much, but I assume the same can happen with them. And every so often I used to get a bad charge on a pair of AA NiMH. No battery's perfect, IME. Though I've yet to experience problems with my 9v universal DVD lithium batteries (knock on wood),
good questions. They were alkalines. Unless I got a bad lot or something they were completely useless. I have always used either energizer lithiums or duracell alkalines neither of which have I ever had a problem with. look what happened when I thought I could save a few pennies. I lost the moment.
/rant/
edit to state that they were in different packages however, I did not look to see if they were the same lot #