Samsung 50S 21700 5000mAh Battery Flat Top Li-ion INR-21700-50S - FREE Battery case included

Samsung 50S 21700 5000mAh Battery Flat Top Li-ion - extremely powerful rechargeable cell.

Genuine INR21700-50S made by Samsung SDI

Highly recommended (Compatible) Li-ion chargers that are able to charge 21700 batteries are:

• Recommended charger for 21700 Batteries
• 4 Channels Li-ion Charger for 21700 Batteries
• 8 Channels Li-ion 21700 Batteries Charger

 Samsung INR21700-50S Battery Specifications:

• Nominal Capacity: 5000 mAh [ 5 Ah ]
• Nominal Voltage: 3.6V / 3.7V
• Discharge cut-off voltage: 2.5V (Must End discharge process)
• Max. continuous discharge current: 25A (Without temperature cut)
• Max. continuous discharge (With 80°C temperature cut-off): 45A

• Dimensions:
• Height: 70.62mm max/ 2.78 In max
• Diameter: 21.25mm max/ 0.83 In max
• Weight (max): 72.0 g max/ 2.54 Oz max
• Positive Contact/Terminal: Flat Top
• Electronic Safety Protection? : No, this is Unprotected 21700 cell [Advanced Users Only]
• Recommended charging current: 1A - 3A
• Max. Charging current: 6A

• Operating temperatures:
• Charging: -10 to 60°C
• Discharging: -20 to 80°C (must re-discharge release < 60°C)

• Initial internal impedance:  ≤ 14mΩ [at AC 1kHz after Rated charge]
• Charging Algorithm: CC/CV [Constant Current-Constant Voltage]
• Chemical Composition: Li-ion (Lithium-Ion) Hybrid / High Drain
• Rechargeable: Yes
• Model name / Part No.: INR-21700-50S

Standard discharge capacity:
The Standard discharge capacity is the initial discharge capacity of the cell, 
which is measured with discharge current of 1A (0.2 C) with 2.5 V cut-off at 23 °Celsius within one hour after the Standard charge.

 ⚠️ WARNING + SAFETY INSTRUCTIONS:

It is extremely important to thoroughly read and follow to the safety instructions and precautions in this: Safety Instructions guide before charging, using your battery.

Failure to read, and follow Li-ion safety instructions, and warnings may result in fire, personal injury, and property damages if the battery is charged and/or used improperly.

IMPORTANT BATTERY SAFETY INSTRUCTIONS AND WARNINGS | ALL LI-ION BATTERY USERS MUST READ BEFORE USING LITHIUM-ION BATTERIES.
 

• DO NOT SHORT CIRCUIT. Short circuits may cause a fire and injury!
• Charge battery fully to 4.2V before first use.
• Use high-quality charger specifically designed to charge Li-ion batteries.
• Do not charge unattended.
• Always keep your battery that is not in use inside plastic battery holder.  Plastic holders prevent batteries from coming into contact with metal objects, which can cause short circuits and potential hazards. 
• Do not carry a bare battery in your pocket, purse, or alongside any other metal objects due to the risk of short-circuiting and potential injury. It's important to store batteries properly, ensuring they are kept away from coins, keys, or other conductive materials that can bridge the terminals.
• Never attach any metal moving part |magnet| to the top positive or the bottom negative battery terminal/contact.
• DO NOT USE WITH E-CIGARETTE, VAPORIZER, (E-cig, vape, mod) OR SIMILAR DEVICE
• Stop using the battery with damaged PVC tube (wrap) or terminal insulator immediately.
• Stop using the battery immediately if it shows any signs of damage. For safety, always inspect batteries for any signs of damage.
• Never discharge a Li-ion battery at a rate exceeding the maximum discharge current specified for that battery.
• Never use force to install (insert) Li-ion battery.
• Do not use old, and new batteries together.
• Do not solder directly onto the battery.
• Do not immerse in any liquid.
• Do not drop the battery. Always keep it in a plastic protective holder.
• Do not place the battery in high-pressure containers, microwave ovens, or on induction cookware.
• Immediately discontinue use of the battery if, while using, charging or storing the battery, the battery emits an unusual smell, feels hot, changes color or shape, or appears abnormal in any other way.
• Do not carry, or store the batteries together with hairpins, necklaces, or other conductive metal objects.
• Use only high-quality battery Li-ion charger (CC/CV 4.2V max).
• Do not expose to heat.
• Do not disassemble or modify the battery.
• Keep the battery away from children, and pets.
• Never charge or store the batteries inside your car in extreme temperature. Extreme temperatures (low or high) might ignite the battery, and cause a fire.
• Do not short (connect) positive, and negative battery terminals (contacts) intentionally, or unintentionally.
• Never charge the battery over 4.25V (properly charged li-ion battery is 4.2 Volts / full charge).
• Do not reverse the positive (+) and negative (-) terminals when charging or using the battery.
• Never charge the battery at a current exceeding manufacturer-specified charging current.
• Do not expose the battery to water or salt water or allow the battery to get wet.
• You must verify polarity before connecting the battery to the host device (or charger).
• Never completely discharge the Li-ion battery (below 2.5V under load).
• After the battery is discharged-don't leave it discharged-charge battery as soon as possible (10 min. rest time).
• It is your responsibility to determine that your charger and host device works properly.
• On (battery electrolytes) exposure to skin, flush with water immediately.
• If eye exposure occurs, flush with water for 15 minutes, and seek emergency care immediately.

What is short circuit?

The situation when battery positive (+) and negative (-) connect. The current will become extremely high because there is no resistance in the path to limit current flow. This Short circuit will result in dangerously high temperature which may cause a fire.

These are high discharge current & high-capacity Li-ion batteries. If mishandled or mistreated, these batteries can cause you SERIOUS INJURY. USE AT YOUR OWN RISK.

What is in the box?

• Samsung INR-21700-50S Li-ion rechargeable flat top battery cell 
• Battery Case is included when batteries are bought in quantities of 2 or multiples of 2. (Example 2, 4, 6, 8, 10, etc.)
• Safe Li-ion packaging.