
Actual product photo. Color/labeling can be customized.
Cylindrical · Model 18650-3S2P
18650-3S2P Battery Pack
- Cell Type
- Cylindrical
- Nominal Voltage
- 11.1V
- Rated Capacity
- 5,200mAh
- Size
- 18650 cells · 3S2P
- Cycle Life
- ≥ 800 cycles (80% retention)
- Connector
- XT60 / JST / customizable
Specifications
18650-3S2P
| Nominal Voltage | 11.1V |
|---|---|
| Rated Capacity | 5,200mAh |
| Rated Energy | 57.72Wh |
| Limited Charging Voltage | 12.6V |
| Charge Current | — |
| Max Discharge Current | 10A |
| Weight | ~333 g |
| Cycle Life | ≥ 800 cycles (80% retention) |
| Working Temperature | Charge 0°C ~ 45°C / Discharge -20°C ~ 60°C |
| Connector | XT60 / JST / customizable |
| Dimensions | 18650 cells · 3S2P |
Features
18650-3S2P
- A-grade lithium-ion cells, high consistency
- Long cycle life ≥ 800 cycles
- Wide operating temperature -20°C ~ 60°C
- Smart BMS with multiple safety protections
- Customizable wiring, connectors and housing
Applications

OEM / ODM
Customization options
We design custom battery packs from 10 mAh to 100 kWh. Send us your requirements — our engineers reply within 24 hours.
Request a custom quote →- Capacity customization
- Connector customization
- PCM / BMS customization
- Cable length customization
- Logo printing
- Battery pack assembly
Frequently Asked Questions
How do I request a quote or sample?+
Fill in the form on the Contact page or email us at info@blusenergy.com. Please include voltage, capacity, dimensions, usage scenario, target certifications and required quantity. Our engineers will respond within 24 hours.
What is the minimum order quantity (MOQ)?+
Standard cells: MOQ 500 pcs. Customized battery packs: MOQ 100 pcs for prototyping, 1,000 pcs for mass production. Smaller quantities can be discussed.
Which certifications do your products carry?+
IEC62133, UN38.3, MSDS, CE, RoHS, UL2054, UL9540, IEC62619, KC, BIS, PSE, CB, ISO9001, ISO14001. We can also arrange additional certifications on request.
How long does sampling and mass production take?+
Standard products: 7–15 days. Customized packs: 15–25 days for samples, 25–45 days for mass production (depending on certification and tooling).
What is the warranty?+
12 months for consumer cells, 24 months for industrial packs, up to 10 years for energy storage systems (subject to project scope).
Do you provide installation / commissioning for ESS?+
Yes. For BESS and household storage we provide installation manuals, remote training, on-site commissioning (paid) and 24/7 ticket support.
Get a Quote — 18650-3S2P
We design custom battery packs from 10 mAh to 100 kWh. Send us your requirements — our engineers reply within 24 hours.