Specs

• Nominal Capacity: 2600mAh (0.2C, 2.75V discharge)
• Minimum Capacity: 2550mAh(0.2C, 2.75V discharge)
• Charging Voltage: 4.2 ±0.05 V
• Nominal Voltage: 3.7V
• Charging Method: CC-CV (constant voltage with limited current)
• Charging Current: Standard charge: 1300mA, Rapid charge : 2600mA
• Charging Time: Standard charge : 3hours, Rapid charge : 2.5hours
• Max. Charge Current: 2600mA (ambient temperature 25°C)
• Max. Discharge Current: 5200mA (ambient temperature 25°C)
• Discharge Cut-off Voltage: 2.75V
• Cell Weight: 47.0g max
• Cell Dimension: Height : 65.00mm max, Diameter : 18.40mm max,
• Operating Temperature: Charge : 0 to 45°C, Discharge: -20 to 60°C
• Storage Temperature 1 year: -20~25°C, 3 months : -20~45°C, 1 month : -20~60°C

Important

• Fully charge battery (to 4.2V) before first use.
• Never short (connect positive, and negative side) the battery. Intentionally or unintentionally.
• Keep batteries always in battery case, or any other insulating material.
• Never keep the battery together with any metal objects (short circuit can happen if you do).
• Never carry bare cell in your pocket (purse) with keys, change, or any other metal objects.
• Never completely discharge li-ion battery (below 2.7V)
• Charge only with battery chargers designed, and made for li-ion batteries only.
• Do not charge battery over 4.29V (another reason to use high quality battery charger).
• Do not charge unattended.
• Do not use old, and new cells together.
• 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.
• Never attach any metal moving parts |magnet| to the top-positive, or the bottom-negative battery contacts.
• Never use force to install (insert) li-ion battery.
• Do not use new and old battery cells together | Does not apply for one cell devices.

This is a Great Rechargeable battery. One of the best options for regulated mods and 26F is also unprotected. This Samsung battery hosts exceptional battery life and the safest batteries available, they also perform better for a longer period of time.