From what the dog tester (eneloopy) looks like you have to open it up and put the battery in to test it which makes it rather time consuming so most of us flashaholics wouldn't use it after awhile.
I suspect you are not a "dog person." Look at how happy it makes this Eneloop lady.
I was also thinking if Sanyo had been an American company, this would more likely have been a "Rudolf the Red-Nosed Reindeer" tester.
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