Samsung INR18650-25R 2500mAh - 20A button top

Samsung INR18650-25R (button top) was first released in early 2015 as a replacement of the 25R (blue). The cell has the same performance of 2500mA and a continuous discharge of 20A but has an increased cycle life. The high discharge rate and medium capacity of this cell makes it a first choice for industrial applications as well as home users that are looking for high discharge cells. This cell has become a favourite with vape users in recent years because of it's high current abilities.

Important: 

Never completely discharge Li-ion battery (below 2.5V under load).
Charge fully to 4.2V before first use.
Never use force to install (insert) Li-ion battery.
Do not use old and new battery cells together.
Use only a high quality battery charger.
Do not expose to heat.
Do not short (connect) positive (top), and negative (bottom) battery terminals (contacts). Keep battery that is not in use in plastic holder (or any insulating container).
Never charge battery over 4.25V (another reason to use high quality battery charger).
Do not charge unattended unless using an intelligent charger that shuts off at full charge.
Do not store your Li-ion batteries fully charged (for extended period of time).
Store in cold and dry place at approximately 3.7V (storage charge).
After battery is discharged don't leave it discharged, charge it as soon as possible.