Here is the Best All-Around cell made in the 21700 form factor size. With a minimum capacity of 4,000 mAh in capacity and a typical capacity of 4,200 mAh while having up to a 45 Amp Maximum Continuous Discharge Rating, gives the Molicel 21700 its place on top of the mountain. This cell hits the hardest for the longest, when seen on the discharge with capacity graph. This cell also has the amazing ability to give you very high capacity, while giving you an insanely high discharge/drain ability without making any compromise. This attribute makes it the best all-around cell in its 21700 form factor size.
Charge Lithium-ion cells on a dedicated charger, rated specifically for Lithium-Ion cells.
Never leave a battery unattended whilst charging.
Keep away from animals and children.
Wraps and insulators should inspected often for tears or damage. If a battery has a damaged wrap. If a battery has a damaged wrap, Repair or dispose of it immediately.
Batteries usually have a cycle life of between 200-500 cycles (varies with manufacturer) before noticeable capacity drop off. Batteries should be recycled at this time.
Do not crush, incinerate or modify.
Only use within manufacturers specification.