Battery 50S 21700 5000mAh – Samsung Dear clients, Since May 2021, our team has noticed a failure on many batteries on the market. From now on, all our batteries are tested by a professional before being put on sale. Our current stock has been tested and validated Specifications : Capacity: 5000mAh Chemistry: Lithium-Nickel-Manganese-Cobalt. Rated voltage: 3.7V Max Charging Voltage: 4.2V Continuous discharge current: 25A Positive pole: flat (without nipples) Dimensions: 69mm (length) x 21mm (diameter) Weight: 72g Warning: Please respect the maximum charge and discharge current values. Do not short circuit the battery. Always keep your batteries inside a box specifically made for this purpose, especially while travelling. If you do not use your battery for a while, make sure its current is superior to 2,5 volts. Batteries sold without packaging, put inside a plastic bag for protection.