10.8V Max 3500mAh 3S1P 18650 Battery Pack with PCB
Engineered to meet the distinct demands of modern smart furniture and critical emergency systems, this 10.8V 3500mAh 3S1P battery pack delivers durable, stable power in a compact and safe design. Integrated with a smart PCB for protection and powered by high-performance 18650 cells, it ensures your devices operate smoothly and dependably when it matters most.

Key features:
- Stable 10.8V Output, 3500mAh Capacity
- 3S1P Configuration with Samsung 35E 18650 Cells
- Integrated PCB for Over-Current, Over-Voltage & Short-Circuit Protection
- Ideal for Smart Furniture, Emergency Lighting, and Various Low-Power Devices
| No. | Item | Specification | Note |
|---|---|---|---|
| 1 | Nominal Voltage | 10.8V | 3.6V/Cell |
| 2 | Nominal Capacity | 3500mAh | @0.2C |
| 3 | Minimum Capacity | 3400mAh | |
| 4 | Shipment Voltage | / | |
| 5 | Initial Internal Impedance | ≤120mΩ | AC 1KHZ |
| 6 | Standard Charge Voltage | 12.6V | 4.2V/Cell |
| 7 | Standard Charge Current | 700mA | |
| 8 | Max. Charge Current | 3500mA | |
| 9 | Standard Discharge Current | 700mA | |
| 10 | Max. Discharge Current | 7A | |
| 11 | Burst Discharge Current | 10.5A | ≤5ms |
| 12 | Discharge Cut-off Voltage | 7.5V | 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 | About 135 | g |
| 18 | Special Request |
10.8V 3500mAh 18650 Battery Pack FAQs
What is the typical application of this battery pack?
This 11.1V 3500mAh battery pack is widely used in smart furniture (such as electric sofas, adjustable beds, and smart cabinets) and emergency lighting systems. It also suits various low-power devices requiring stable voltage and compact design.
What type of cells are used in the pack?
We use high-quality 18650 lithium-ion cells from internationally recognized brands (such as Samsung or LG), configured in a 3S1P arrangement to ensure high energy density, stable discharge performance, and long service life.
Is the battery pack equipped with protection functions?
Yes. The built-in Protection Circuit Board (PCB) provides comprehensive safety features, including over-charge, over-discharge, over-current, and short-circuit protection, ensuring safe and reliable operation in various conditions
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.

