Mine just got here, ordered 2900mAH, got 3400mAH.... I see Panasonic actually makes a 3400mAH cell so hopefully it's a free upgrade instead of just mislabeling. Barely could get it to fit in my Trustfire charger, one it came with fits alright. Does it fit in the Cera fine though? I can't see why it wouldn't since it's supposed to be a spring in it this time unlike the T1.