21700 Battery Efest 4000mAh 30A

Efest battery 21700 4000mAh 30A

SPECIFICATIONS:

- Style: Flat Top

- Chemistry: INR

- Nominal capacity: 4000mAh (Max)

- Max Continuous Rated Discharge: 30A Max

- Dimensions: 70 mm x 21 mm

- Discharge Cut-off Voltage: 2.5V

- Nominal voltage: 3.7V

- Protected: No, Unprotected

- Operational Charging Temperature Range: 0 to 45 degrees Celsius

- Operational Discharging Temperature Range: -20 to 75 degrees Celsius

REMINDERS:

- Don't use with device that does not have BMS or PCB protection.

- Don't store loose in your pocket, backpack, purse, or etc.

- Always use a case or box for storage or to carry with you.

- When not in use, always store your battery in a case or box in which battery were delivered with.

- Misusing or mishandling Li-ion battery can cause a serious risk of personal injury or property damage. If misused or mishandled, the battery may explode, burn, or case a fire.

- Usage of battery is at your own risk!

- Only use with proper protection circuitry.

- Don't short circuit intentionally or unintentionally.

- Stay away from metal or conductive objects to prevent short circuiting.

- Don't use the battery if battery's wrapper or terminal insulator is damaged or torn.

- Don't use if battery is showing any visible damage.

- Don't over-charged or charged battery above the maximum voltage rating.

- Don't over-discharged or exceed battery above the continuous discharge rating.

- Don't modify, disassemble, puncture, cut, crush, or incinerate the battery.

- Don't expose the battery to liquids or high temperatures.

- Don't use force to install the battery in any way.

- Only use the battery within manufacturer’s specification.

- Store the battery at a safe place where the pet/child can't reach.

- Always charge the battery in or on a fire-proof surface and never leave battery charging unattended.

- Only use a proper smart charger to charge the battery. Please fully charged the battery before first use. The charging time may vary, depends on the charger you have (may need from 4 to 12 hours). If your charger has a capacity indicator, it is normal that the first bar or first 20% to 25% would take the longest time to be charged. Always use the batteries that are same brand, same model, and same condition.

- Don't mix and match with other batteries.

- Immediately stop using the battery if any abnormal appearance occurs.

- It is your responsibility to make sure that your charger or device is functional.

- If exposed to battery electrolyte, flush with water immediately and/or immediately contact a physician or emergency services.

- Don't throw away in trash; please properly recycle or dispose the battery.

Efest battery 21700 4000mAh 30A