The Samsung 50S 21700 Battery is a high-performance lithium-ion rechargeable power cell, offering exceptional capacity and a robust discharge rate. With an impressive 5000mAh capacity and a continuous discharge rate of 25A, this battery is an excellent choice for high-drain applications requiring long-lasting performance and reliable power output.
Key Features
✅ High Capacity: 5000mAh ensures extended runtime before requiring a recharge.
✅ High Discharge Rate: 25A continuous discharge, ideal for power-hungry applications.
✅ Lithium-Ion Chemistry: Offers high efficiency, stability, and minimal voltage drop.
✅ Rechargeable & Durable: Supports multiple charge cycles with minimal capacity loss.
✅ Larger 21700 Size: Provides higher capacity and better endurance than standard 18650 batteries.
Specifications
| Specification |
Details |
| Brand |
Samsung |
| Model |
50S |
| Battery Type |
21700 |
| Capacity |
5000mAh |
| Nominal Voltage |
3.6V |
| Full Charge Voltage |
4.2V |
| Discharge Cutoff Voltage |
2.5V |
| Continuous Discharge Rate (CDR) |
25A |
| Rechargeable |
Yes |
| Protected |
No (Unprotected cell – use with proper safety measures) |
| Cycle Life |
~300+ charge cycles |
| Diameter |
21.4mm |
| Length |
70.0mm |
| Weight |
~70g |
Applications
The Samsung 50S is widely used in high-drain electronic devices, including:
🔋 Electric Vehicles (EVs) & E-Bikes – Provides high power output and long-lasting charge cycles.
🔋 Battery Packs – Frequently used in custom-built high-performance energy storage systems.
🔋 Power Tools – Suitable for cordless drills, saws, and industrial-grade equipment.
🔋 RC Vehicles & Drones – Delivers stable and long-lasting energy output.
🔋 Flashlights & Tactical Gear – Ideal for high-performance LED torches and professional gear.
🔋 Energy Storage Systems (ESS) – Used in power banks, solar storage, and backup energy systems.
Safety Guidelines & Warnings
⚠️ IMPORTANT SAFETY NOTICE ⚠️
Lithium-ion batteries require proper handling and knowledge to ensure safe usage. Failure to follow safety guidelines may result in fire, explosion, serious injury, or property damage.
General Safety Guidelines
✔ Only purchase and use if you fully understand lithium-ion battery safety.
✔ Always charge in or on a fire-resistant surface—never leave batteries charging unattended.
✔ Use only a compatible smart charger designed specifically for this type of battery.
✔ Store batteries in a protective case—never carry them loose in a pocket, bag, or purse.
✔ Keep away from metal objects (keys, coins, tools) to prevent short circuits.
✔ Use only within manufacturer-listed specifications and in protected battery packs.
✔ Resellers must provide these warnings to all customers.
🚫 Prohibited Uses & Handling
⛔ DO NOT use this battery in e-cigarettes, vaporizers, or similar devices.
⛔ DO NOT mix old and new, or used and unused batteries.
⛔ DO NOT short circuit, puncture, cut, crush, incinerate, or modify the battery.
⛔ DO NOT use if the battery wrapper is torn or damaged in any way.
⛔ DO NOT overcharge or over-discharge—this can lead to battery failure.
⛔ DO NOT expose the battery to liquids, extreme heat, or direct sunlight.
⛔ DO NOT solder directly—only use spot welding for battery pack assembly.
