14.8V 3500mAh 4S1P Li ion Battery Pack for Measurement Equipment
At CMB, we engineer power solutions that meet the critical demands of precision measurement equipment. Our 14.8V 3500mAh 4S1P 18650 battery pack is designed to deliver reliable, high-capacity performance—ensuring consistent operation of sensitive sensors and circuits. Equipped with an integrated BMS for enhanced safety and longevity, it provides the stable runtime and data integrity your instruments depend on.
Key features：
- Premium Cell Quality: Features original Samsung 18650 cells.
- Flexible BMS Options: Choose between standard hardware or SMBus communication.
- Adaptable Configurations: Available in 38×20×132mm or 38×38×70.5mm sizes.
- Lightweight Build: Weighs only 200g for portable applications.
| No. | Item | Specification | Note |
|---|---|---|---|
| 1 | Nominal Voltage | 14.8V | 3.7V/Cell |
| 2 | Nominal Capacity | 3500mAh | @0.2C |
| 3 | Minimum Capacity | 3350mAh | |
| 4 | Shipment Voltage | / | |
| 5 | Initial Internal Impedance | ≤180mΩ | AC 1KHZ |
| 6 | Standard Charge Voltage | 16.8V | 4.2V/Cell |
| 7 | Standard Charge Current | 1.75A | |
| 8 | Max. Charge Current | 3.5A | |
| 9 | Standard Discharge Current | 0.7A | |
| 10 | Max. Discharge Current | 5A | |
| 11 | Burst Discharge Current | 10A | ≤5ms |
| 12 | Discharge Cut-off Voltage | 12V | 2.5V/Cell |
| 13 | Cycle Life | ≥500cycles | Capacity retention ≥80% |
| 14 | Charge Temperature | 0°C~+45°C | Standard charge |
| 15 | Discharge Temperature | -20°C ~+60°C | Standard discharge |
| 16 | Storage Temperature | -20°C~45°C | ≤3 months |
| -20°C~25°C | ≤1 year | ||
| 17 | Weight | About200 | g |
| 18 | Special Request |
14.8V 3500mAh 4S1P 18650 Battery Pack FAQs
Is this battery certified?
Yes. The pack complies with key international standards including UN38.3, CE, and RoHS. Full technical documentation is available to support your product certification.
Are there other capacity options for the 4S1P 18650 battery pack?
Yes, we offer a variety of capacity options of 4S1P 18650 battery pack to meet different runtime needs. Available capacities include: 2000mAh, 2600mAh, 2900mAh, 3000mAh, 3500mAh, 3800mAh, and 4000mAh.
What protection circuit options are available for the 4S1P 18650 battery pack?
We offer three primary solutions:
- Hardware-based Protection
- BQ Series Fuel Gauge ICs
- SMBus Communication Interface
The development cycle and cost for each solution are not fixed and are assessed monthly. Please contact us for a project-specific quotation and timeline.
Do you support customization of special battery pack technologies?
CMB specializes in customizing battery packs for wide temperature ranges from -50°C to 85°C, as well as IP68-rated waterproof battery packs. For inquiries, please contact our engineers.
Tailored Customization
Our design team can create custom battery designs for just about any device or machine.
Timely Delivery
Our efficient production and distribution process gets your product delivered in a timely manner.
Quality Guarantee
We stand by our products and guarantee you’ll be happy with your purchase.
