I don't spend much time here in the batteries forum (gotta work on that), so you all probably already know to check this, but today I received an A2 Aviator I bought on the Bay. It arrived with two differently-branded CR123a cells inside. One had a resting voltage of 3.14 volts, and the other was 2.59 volts. Glad I didn't just start using it before checking them. Be safe out there.