SVOLT 21700 5000mAh 3.7V Rechargeable Li-ion Battery Cell
SVOLT 21700 5000mAh 3.7V Rechargeable Li-ion Battery Cell
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SVOLT 21700 5000mAh Lithium-Ion Battery Cell
Build a battery pack around the power your project needs. This rechargeable SVOLT 21700 cell combines a 5000mAh (5Ah) rated capacity with a 3.7V nominal voltage, providing approximately 18.5Wh of energy per cell. Its cylindrical 21700 format is suited to compatible custom battery packs for electric mobility, energy storage and other electronics projects.
Key specifications
- Cell type: Rechargeable 21700 lithium-ion (NMC)
- Capacity: 5000mAh (5Ah)
- Nominal voltage: 3.7V
- Energy: Approximately 18.5Wh per cell
- Charge voltage: Up to 4.2V using a compatible CC-CV charger
- Continuous discharge: Up to 10A, as listed in the product specifications
- Listed dimensions: 21.6mm × 70.8mm
Plan your next pack
Whether you are prototyping an e-bike pack or assembling a compact storage project, check your design's voltage, current, dimensions and protection requirements before choosing a cell. Use appropriate charging and battery-management protection; cell selection and pack assembly should be handled by someone qualified to work with lithium-ion batteries.
SVOLT 21700 5000mAh Lithium-Ion Battery Cell – High-Capacity Power Solution for EV & Energy Storage
The SVOLT 21700 5000mAh Li-ion cell is a premium cylindrical battery designed for high-energy and mid-range discharge applications. With a nominal voltage of 3.7V and capacity of 5000mAh (5Ah), it delivers up to 18.5Wh per cell, making it ideal for use in electric vehicle battery packs, solar energy storage systems, e-bikes, drones, power tools, and industrial backup solutions.
| Parameter | Specification |
|---|---|
| Cell Model | SVOLT 21700 NMC |
| Cell Type | Cylindrical Lithium-Ion Rechargeable Cell (NMC) |
| Nominal Capacity | 5000mAh (5Ah) |
| Nominal Voltage | 3.7V |
| Voltage Range | 2.5V (cut-off) to 4.2V (max charge) |
| Energy | ≈ 18.5Wh |
| Standard Charge Current | 0.5C (2.5A) |
| Max Continuous Discharge | 10A |
| Pulse Discharge (≤10s) | 20A (with temp monitoring) |
| Internal Resistance | ≤ 20mΩ |
| Charging Method | CC-CV (Constant Current – Constant Voltage) |
| Cycle Life | ≥ 1000 cycles @ 80% DOD (25°C, 0.5C/0.5C) |
| Cell Chemistry | NMC811 (Nickel Manganese Cobalt Oxide) |
Built with advanced NMC chemistry (Nickel Manganese Cobalt), the SVOLT 21700 cell offers superior energy density, longer cycle life, and stable discharge performance. It supports a continuous discharge current of 10A, with pulse discharges of up to 20A for high-power requirements. This makes it a reliable choice for applications demanding both long runtime and strong current output.
Designed to industry-standard 21700 dimensions (21.6mm × 70.8mm), this cell provides greater capacity than typical 18650 cells without significantly increasing space or weight. With internal resistance under 20mΩ, it ensures low heat generation and high efficiency during charge and discharge cycles.
The SVOLT brand is known for its automotive-grade quality, offering over 1000 charge/discharge cycles under standard conditions. These cells are commonly used in custom lithium-ion battery pack manufacturing, including solar inverter batteries, material handling equipment, and electric scooters.
Whether you’re building a custom EV battery, a solar power bank, or a high-drain Li-ion pack, the SVOLT 21700 5000mAh cell delivers consistent performance with excellent thermal stability and safety.
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