3.7V 7800 mAh Lithium Batteries 21700-1S3P
For 3.7V applications demanding extreme endurance, the Hanery 21700-1S3P-7800 is the ultimate power core. Connecting three 2600mAh-class 21700 cells in parallel, it offers a formidable 7800mAh capacity. This pack is engineered for stationary or large portable devices that must operate for days between charges, such as professional surveying equipment, robust communication base stations, and critical environmental monitoring systems.
Extreme 7800mAh Endurance: The definitive long-runtime solution for 3.7V applications.
Efficient 3-Cell Parallel Design: Achieves massive capacity with a streamlined architecture compared to legacy formats.
Low Current Stress: Sharing the load across three large 21700 cells minimizes heat and maximizes the pack’s overall lifespan.
Heavy-Duty Protection Circuit: Equipped with a robust PCM capable of managing high capacities and ensuring multi-cell safety.
Professional Spot Welding: Pure nickel construction guarantees strong, zero-failure connectivity between cells.
Custom Layout & Connectors: Fully tailored geometric arrangements (e.g., triangular, flat) and wiring harnesses for seamless OEM integration.
Please note that we have a MOQ for our battery. For batteries in stock, the MOQ is 10,000 pcs. For customized batteries, the MOQ is 50,000 pcs.
Hanery assists you throughout your project: battery size, capacity, discharge multiplier, operating temperature, safety, and associated protection circuitry. Please contact us or mark your requirements on the inquiry quotation.
Order single or thousands of items at a time. Our warehouse and flexible shipping options are available for last-minute, deadline critical orders.
Free Sample
*Customization is always available, please mark down your need in form or just contact us.
Battery Specification
1. Mechanical Characteristics
| Cell | 21700 | PCM | Yes |
| NTC | Yes | Weight | appr. 217g |
| Configuration | 1S3P |
2. Electrical Specification
| Capacity | 7800mAh | Nominal Voltage | 3.7V |
| Energy | 28.86Wh | Internal Resistance | less than 100 mΩ |
| Max. Charge Voltage | 4.2V | Discharge Cut Off | 2.75V |
| Max. Charge Current | 3900mA | Max. Discharge Current | 15600mA |
| Standard Charge Current | 1560mA | Standard Discharge Current | 1560mA |
| Charging Temperature | 0℃ to 45℃ | Discharging Temperature | -20℃ to 60℃ |
| Storage Temp.Range | 1 year at -20℃ to +30℃ 3 mos. at -20℃ to +45℃ 1 mo. at -20℃ to +60℃ | Cycle life | 100 cycles ≥92% 300 cycles ≥88% 500 cycles ≥80% |
3. Cell protection
| Overcharge Detection | 4.28V ±50mV (80 to 200msec delay, release 4.08V ±50mV) | Overdischarge Detection | 2.9V ±100mV (40 to 120msec. delay, release 3.0V ±100mV) |
| Overcurrent Detection | 5A to 9A (9 to 15msec. delay) | Short protection | Yes |
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3.7V 3000 mAh Lithium Batteries 21700-1S1P
The Hanery 21700-1S1P-3000 is a robust, single-cell power solution that forms the foundation of the 21700 platform. Delivering a solid 3000mAh at a nominal 3.7V, this pack is often utilized when high discharge capability (power focus) is required alongside significant capacity in a compact, single-cylinder footprint. It is an excellent, reliable drop-in solution for professional handheld electronics and high-performance lighting.
The 21700 Foundation: Leverages the advanced internal structure of the 21700 cell for superior performance over 18650 equivalents.
Integrated Protection (PCM): Features a built-in circuit to protect against over-charge, over-discharge, and short circuits.
High Power Delivery: Ideal for applications requiring robust continuous discharge currents.
Compact 1S1P Layout: The most space-efficient way to utilize 21700 technology.
Custom Connectivity: Supplied with wire leads and connectors perfectly matched to your device’s PCB.
Grade-A Reliability: Manufactured and tested to strict standards for consistent, dependable operation.
Please note that we have a MOQ for our battery. For batteries in stock, the MOQ is 10,000 pcs. For customized batteries, the MOQ is 50,000 pcs.
Hanery assists you throughout your project: battery size, capacity, discharge multiplier, operating temperature, safety, and associated protection circuitry. Please contact us or mark your requirements on the inquiry quotation.
Order single or thousands of items at a time. Our warehouse and flexible shipping options are available for last-minute, deadline critical orders.
Free Sample
*Customization is always available, please mark down your need in form or just contact us.
Battery Specification
1. Mechanical Characteristics
| Cell | 21700 | PCM | Yes |
| NTC | Yes | Weight | appr. 70g |
| Configuration | 1S1P |
2. Electrical Specification
| Capacity | 3000mAh | Nominal Voltage | 3.7V |
| Energy | 11.1Wh | Internal Resistance | less than 80 mΩ |
| Max. Charge Voltage | 4.2V | Discharge Cut Off | 2.75V |
| Max. Charge Current | 1500mA | Max. Discharge Current | 6000mA |
| Standard Charge Current | 600mA | Standard Discharge Current | 600mA |
| Charging Temperature | 0℃ to 45℃ | Discharging Temperature | -20℃ to 60℃ |
| Storage Temp.Range | 1 year at -20℃ to +30℃ 3 mos. at -20℃ to +45℃ 1 mo. at -20℃ to +60℃ | Cycle life | 100 cycles ≥92% 300 cycles ≥88% 500 cycles ≥80% |
3. Cell protection
| Overcharge Detection | 4.28V ±50mV (80 to 200msec delay, release 4.08V ±50mV) | Overdischarge Detection | 2.9V ±100mV (40 to 120msec. delay, release 3.0V ±100mV) |
| Overcurrent Detection | 5A to 9A (9 to 15msec. delay) | Short protection | Yes |
Request Your Quote
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