Super dealer, very large expertise! Great customer service - personal contact is always 1A! Of course, the cell has Power 3400 mAH - a charge lasts compared to the smaller Panasonic 2000mAH twice as long. For those who absolutely need highly recommended a protected cell. Unprotected eg NCR18650B is naturally much cheaper, of the performance but equal. Like any "protected" is also this battery slightly longer than ordinary 18650 - in the battery compartment so must already be 0.5 to 0.8 cm more space.