Cylindrical - Model 18650-2S2P
Custom 7.4V 4000mAh 18650 2S2P Battery Pack
- Cell Type
- Cylindrical
- Nominal Voltage
- 7.4V
- Rated Capacity
- 4,000mAh
- Size
- 18650 cells - 2S2P
- Rated Energy
- 29.6Wh
- Limited Charging Voltage
- 8.4V
Application Guide
18650 2S2P Battery Pack for OEM Integration
This product is a 7.4V 4000mAh cylindrical lithium-ion battery pack using 18650 cells in a confirmed 2S2P configuration. Each series path contains two cells, and two parallel paths provide the confirmed combined capacity. Electrical requirements and available installation space should be reviewed together before OEM integration.
Typical Applications
- Power-tool products with compatible voltage requirements
- PDA equipment designed for a 2S battery pack
- E-mobility projects with a confirmed 7.4V interface
Custom Battery Options
- 2S2P pack layout review for the enclosure
- Protection requirements based on the project load
- Connector and cable or wiring requirements
- Mechanical integration based on available space
Manufacturer / OEM
Information for a 2S2P Pack Review
Share the required voltage and capacity, continuous and peak load requirements, installation envelope, connector requirement and cable or wiring requirement. The confirmed 7.4V 4000mAh 2S2P product data remains the basis of the review.
Related buying guides
Technical Data
Specifications
Model 18650-2S2P
Features
18650-2S2P
- 18650 cylindrical lithium-ion battery pack
- Confirmed 2S2P multi-cell configuration
- 7.4V nominal voltage and 4000mAh rated capacity
- 29.6Wh rated energy and 8.4V charging voltage
- Existing applications include power-tool, PDA and e-mobility products
OEM / ODM
Customization options
Need a different capacity, size, connector or battery configuration? Send us your requirements and our engineers will evaluate a suitable solution for your project.
Request a custom quote →- Capacity customization
- Connector customization
- PCM / BMS customization
- Cable length customization
- Logo printing
- Battery pack assembly
Frequently Asked Questions
What does 2S2P mean for this 18650 battery pack?+
The confirmed 2S2P configuration has two 18650 cells in each series path and two parallel paths, providing the stated 7.4V nominal voltage and 4000mAh capacity.
Can the 2S2P battery pack be adapted for an OEM product?+
Project-specific pack layout, protection, connector, wiring and installation requirements can be reviewed against the host product.
What details are needed for a custom 18650 pack?+
Provide voltage, capacity, continuous and peak load requirements, available installation space, connector and cable or wiring requirements.
How do I request a product quote and 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 product minimum order quantity (MOQ)?+
MOQ depends on the battery model and customization requirements. Sample and prototype quantities can be discussed based on your project needs. Send us your specifications and estimated quantity, and we’ll evaluate the most suitable option for your project.
Which international safety certifications do your battery 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 do sampling and bulk delivery each 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 official warranty period for all battery products?+
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 guidance and technical support for energy storage systems?+
Yes. For BESS and household storage we provide installation manuals, remote training, on-site commissioning (paid) and 24/7 ticket support.
