Lithium battery 3.7V 2600 capacity $ 0.99 Quality assurance: high quality a cell with high capacity, low internal resistance and high current discharge Stable performance: long cycle service life: after 500 times of continuous charge and discharge, the battery capacity is not less than 85% of the rated capacity No memory effect: it can be charged and discharged at any time High safety: overcharge and over discharge protection, PTC resistance protection and explosion-proof protection Environmental protection requirements: CE, MSDS, UN38.3, UL, etc Cooperation: short delivery time, reasonable price and perfect service