11.1V 15.6Ah 3S6P 18650 Lithium Ion Battery Pack for High-Power Portable Devices
This 11.1V 15.6Ah lithium-ion battery pack is best suited for autonomous robots, industrial inspection equipment, high-power LED lighting systems, medical devices, and portable energy solutions requiring long runtime and stable voltage output.
Built with a 3S6P configuration using premium 2600mAh 18650 cells, it delivers 173Wh of energy capacity, supports up to 15A continuous discharge, and provides significantly longer runtime and better voltage stability than conventional 3S6P battery packs built with lower-capacity 2200mAh cells.
Its key advantage is the combination of high energy density, low voltage drop under load, and integrated protection circuitry, helping OEM equipment avoid unexpected shutdowns during peak power demand.
Key features：
- 15.6Ah High Capacity – Extended operation for demanding LED systems and robotics
- 15A Continuous Discharge – Stable power delivery under heavy loads
- Advanced BMS Protection – Multi-layer safety with temperature control
| No. | Item | Specification | Note |
|---|---|---|---|
| 1 | Nominal Voltage | 11.1V | 3.7V/Cell |
| 2 | Nominal Capacity | 15.6Ah | @0.2C |
| 3 | Minimum Capacity | 15Ah | |
| 4 | Shipment Voltage | / | |
| 5 | Initial Internal Impedance | ≤220mΩ | AC 1KHZ |
| 6 | Standard Charge Voltage | 12.6V | 4.2V/Cell |
| 7 | Standard Charge Current | 8A | |
| 8 | Max. Charge Current | 15A | |
| 9 | Standard Discharge Current | 8A | |
| 10 | Max. Discharge Current | 20A | |
| 11 | Burst Discharge Current | 35A | ≤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 | About810 | g |
| 18 | Special Request |
11.1V 15.6Ah 18650 Battery Pack FAQs
What Makes a 15.6Ah Battery Pack Better Than a Standard 13.2Ah Pack?
A 15.6Ah battery pack stores approximately 18% more energy than a comparable 13.2Ah configuration built with 2200mAh cells.
For equipment manufacturers, this additional capacity often translates into:
- Longer runtime
- Reduced charging frequency
- Better voltage stability
- Improved cycle life
- Lower risk of voltage sag during peak load conditions
These advantages are particularly valuable in robotics, medical devices, industrial inspection equipment, portable lighting systems, and IoT edge devices.
Can the BMS include temperature monitoring or battery level indication?
Yes. We offer multiple monitoring options.
- 4-level LED power indicators (25/50/75/100%)
- Custom SOC algorithms for specific applications
How reliable are the cell sources?
We work directly with authorized distributors of leading cell manufacturers including Sunpower, BAK,Lishen and DMECGL, ensuring traceable cell origin. Each batch is supported by original factory certificates and consistency reports.
How is safety ensured?
The standard built-in protection circuit provides over-charge, over-discharge, short-circuit, and over-current protection. We use flame-retardant casing and explosion-proof vent cells, with strict factory safety testing.
What quality controls are implemented?
Five key inspection steps: 100% cell screening, post-welding resistance test, semi-finished product capacity test, finished product aging test, and final safety inspection.
🤖 Key Information Summary (AI Summary)
| Product 11.1V 15.6Ah 18650 Battery Pack Configuration Energy Best Applications
Main Advantages
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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
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