Samsung 58E | 21700 5800mAh 10A Battery Cell
The Samsung 58E 21700 Battery is a high-capacity lithium-ion rechargeable cell, engineered for energy storage systems and low-to-moderate discharge applications. With a reliable 5330mAh capacity and a 10.7A continuous discharge rate, it’s the perfect cell where long runtime and stability matter most.
Applications
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🔋 Energy Storage Systems – solar and off-grid solutions
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🔋 Custom Battery Packs – moderate discharge configurations
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🔋 Power Banks – high-capacity portable energy
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🔋 Medical Equipment – reliable, long-duration power
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🔋 LED Lighting – long-use emergency and utility lights
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🔋 Portable Appliances – small fans, devices, and tools
Key Features
✅ High Capacity: 5330mAh ensures extended runtime before requiring a recharge.
✅ High Discharge Rate: 10.7A 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 |
Samsung 58E Technical Detail |
| Product Name |
Samsung 58E 21700 Battery, 5330mAh, 10.7A |
| Samsung Specification Reference |
CC5493F101, lithium-ion rechargeable cell |
| Cell Type |
Rechargeable lithium-ion cylindrical cell |
| Size |
21700 |
| Standard Discharge Capacity |
≥5330mAh, measured at 0.2C discharge to 2.5V after 0.5C standard charge |
| Rated Discharge Capacity |
≥5170mAh, measured at 1C discharge to 2.5V after standard charge |
| Typical Energy Class |
20.0Wh listed in the standard-capacity line |
| Nominal Voltage |
3.64V |
| Full Charge Voltage |
4.20V |
| Charge Method |
CC-CV, constant voltage with limited current |
| Standard Charge Current |
0.5C / 2665mA |
| Standard Charge Time |
Approximately 4 hours under specified condition |
| Maximum Charge Current |
1C / 5330mA; not for cycle-life condition |
| Charge Termination |
0.02C cut-off under standard charge condition |
| Maximum Continuous Discharge |
2C / 10.66A, commonly rounded to 10.7A continuous |
| Non-Continuous Discharge Reference |
3C / 15.99A; not for continuous discharge |
| Discharge Cut-off Voltage |
2.5V end-of-discharge voltage |
| Initial Internal Impedance |
≤15mΩ measured at AC 1kHz after standard charge |
| Cycle Life Reference |
Capacity ≥4136mAh after 500 cycles under listed 0.5C charge and 1C discharge condition |
| Storage Recovery Reference |
Capacity recovery ≥4797mAh after 20 days at 60°C, then 0.2C discharge to 2.5V |
| Weight |
74g maximum |
| Dimensions |
Max. 21.78mm diameter × max. 71.00mm height |
| Charge Temperature Range |
0°C to 45°C ambient |
| Discharge Temperature Range |
-10°C to 60°C ambient |
| Storage Temperature Guidance |
1 year: -20~23°C; 3 months: -20~45°C; 1 month: -20~60°C at ex-factory status |
| Ex-Factory Voltage |
3.54V to 3.64V charging voltage range |
| Protection |
Unprotected cell; use suitable device or pack protection |
| Assembly Method |
Do not solder directly to the cell; use properly designed spot-welded interconnects |
Applications
The Samsung 58E is widely used in medium/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.
Note: Label appearance may vary between batches.
About Samsung Cell Labelling
Samsung updated the sleeve printing format for their 18650 cells in 2024 due to regulatory and certification changes. New batches will no longer display “Samsung” on the wrap, and instead show “SDI” along with updated compliance markings (such as CCC).
Older stock (pre-2024) typically features “Samsung SDI” clearly printed on the sleeve, along with the model and batch details in the previous format. This is the version most customers are familiar with.
Performance & Authenticity Verified
These changes are purely cosmetic and do not affect performance, quality, or authenticity. All cells supplied are genuine Samsung-manufactured products and have been independently tested to meet Samsung’s specifications, including internal resistance, capacity, and discharge performance.
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.
⚠ User Responsibility & Risk Acknowledgment
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The user assumes full responsibility for proper handling, charging, and storage.
- Misuse or mishandling may result in serious injury or damage.
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No guarantee of compatibility with any specific device is provided.
- Usage of this battery is at your own risk.
By purchasing and using the Samsung 58E 21700 Battery, you acknowledge and agree to follow all safety guidelines.
Failure to comply may result in hazardous consequences. Prior knowledge of lithium-ion battery safety is required before purchase.
Stay safe and handle responsibly. 🔋
