RE: Picture Tutorial: Swapping out your 10X / 12X batteries
TMMugen,
I answered the PM you sent me, but I'll answer it here too. The little diode does not change colors when it is blown. The only way you will know it is blown, is it won't charge through the jack anymore. As far as whether or not it is "safe", your radio will not be protected from being charged in reverse polarity. The white "stuff" is a thermal sensor. I do not install/reinstall it on the eneloop packs.
Chad