• Model: INR121700 P42A 
• Size: 21700
• Capacity: 4200mAh
• Maximum Discharge: 30A
• Nominal Voltage: 3.6V
• Maximum Voltage: 4.2V
• Top: Flat Top
• Protection None
• Manufacturer: E-One Moli Energy Corporation

Safety Information:

• Lithium ion- batteries should never be carried loose on pockets, bags, purses etc when not in use within your device always use a protective case. You can find suitable battery cases here.
• We highly recommend batteries never to be charged within their device but use a standalone dedicated charger specifically designed for that purpose. You can find more here.
• When the batteries are charging never to be left unattended and keep them away from pets or children.
• The protective wrapping of the battery must be checked frequently for damage. If it is damaged it must replaced or the battery discarded responsibly (check with your local recycling centre)
• Always use according to manufacturers specifications or your devices needs.
• User assumes all risks related when using batteries of such nature.