Samsung 30T 21700 Battery
Always use a battery charger that is rated for Li-ion cells
Batteries should never be left charging unattended
Batteries should never be loose in pocket or bag (use case provided)
All lithium batteries have a cycle-life, however, a battery should be replaced every 2 years – whichever comes first.
Never continue to use a battery with a broken PVC wrap.
Never completely discharge batteries
Do not expose to extreme heat
Samsung 25r 18650 Battery
Flat top 20A and features 2500mAh capacity.