This is a Sanyo NCR20700B Lithium ion rechargeable battery.

Specifications

• Voltage: 3.6V
• Current: 20A
• Model: NCR20700B
• Battery Size: 20700
• Battery Chemistry: Li-Ion
• Brand: Sanyo
• 4250mAh Battery
• Battery Feature: Rechargeable
• Flat top

Battery Care

• Do not incinerate
• Do not disassemble
• Do not short positive and negative contacts
• Do not expose to heat
• Do not completely discharge
• Do not use force to install a li-ion battery
• Use only high quality battery charger
• Charge fully before first use
• Store in cold and dry place at approximately nominal voltage
• Gross weight is approximately 66 grams.