This is a pink Samsung that came with a REIN weapon light. The rifle it's on is very low round count and spends most of its time in the safe. The battery shows fully charged on the Nitecore charger. But it does not work in any of the several lights I tried it in. Also, the REIN works fine with other batteries.
Thoughts? If it's dead, what is a better brand to replace it with?
FWIW the stamp on the battery is INR18650-30Q Samsung SDI 141
Thanks in advance!