Cylindrical - Model 21700-4S1P
Custom 14.76V 4800mAh 21700 4S1P Battery Pack
- Cell Type
- Cylindrical
- Nominal Voltage
- 14.76V
- Rated Capacity
- 4,800mAh
- Size
- 21700 cells · 4S1P
- Rated Energy
- 70.85Wh
- Limited Charging Voltage
- 16.8V
Application Guide
21700 4S1P Battery Pack for OEM Integration
This product is a 14.76V 4800mAh cylindrical lithium-ion battery pack built with 21700 cells in a confirmed 4S1P configuration. Four cells are connected in series with one parallel cell path. The pack layout and electrical interface should be checked against the host equipment's load and available installation space.
Typical Applications
- Power-tool projects with compatible electrical requirements
- Drone equipment designed for the confirmed pack voltage
- E-mobility products with space for the 4S1P layout
Custom Battery Options
- 21700 pack layout review for the installation envelope
- Protection requirements based on the project load
- Connector and wiring requirements to be confirmed
- OEM equipment integration review
Manufacturer / OEM
Information Needed for a 21700 4S1P Review
Provide the required voltage and capacity, continuous and peak load requirements, available installation space, connector requirement and cable or wiring requirement. The review will retain the confirmed 14.76V 4800mAh 4S1P configuration.
Related buying guides
Technical Data
Specifications
Model 21700-4S1P
Features
21700-4S1P
- 21700 cylindrical lithium-ion battery pack
- Confirmed 4S1P multi-cell configuration
- 14.76V nominal voltage and 4800mAh rated capacity
- 70.85Wh rated energy and 16.8V charging voltage
- Existing applications include power-tool, drone and e-mobility products
Applications

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 4S1P mean for this 21700 battery pack?+
The confirmed 4S1P configuration uses four 21700 cells connected in series with one parallel cell path, providing the stated 14.76V nominal voltage and 4800mAh capacity.
Can this 21700 pack be adapted for an OEM project?+
Pack layout, protection, connector, wiring and installation requirements can be reviewed for the specific OEM project.
What information is needed for a custom 21700 battery 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.