11.1V 6Ah Li-Ion Battery Pack for Electric Air Compressor Motors
By Shawn | Battery Engineer – Power System Design
Introduction: The Power Source Your Electric Air Compressor Deserves
Electric air compressor motors demand more from a battery than almost any other portable application. From the moment the motor spins up, it pulls high current for an extended period — and it does this repeatedly, often in harsh outdoor or industrial environments. For OEM manufacturers and bulk procurement teams sourcing a power solution that is reliable, certifiable, and easy to integrate, the choice of battery pack is a critical engineering decision, not an afterthought.
This article presents a detailed technical and commercial review of the Himax 11.1V 6Ah Lithium-Ion Battery Pack (Model: HLI-GB03-1364) — a 3S3P 18650 lithium-ion pack purpose-built for demanding motor-driven applications, including electric air compressors, electric pumps, and portable power tools.
If you are evaluating a lithium ion battery pack for your next production run, this guide gives you everything you need to make an informed decision.
Product Overview: What Is the Himax 11.1V 6000mAh Li-Ion Battery?
The Himax 11.1V 6Ah pack is a 18650 3S3P lithium ion battery pack — meaning The pack uses nine individual 18650 cells arranged in a 3-series, 3-parallel configuration. This architecture delivers a nominal voltage of 11.1V and a usable capacity of 6,000mAh (6Ah), storing 66.6Wh of energy in a compact, rugged enclosure.
Shenzhen Himax Electronics Co., Ltd. designed and manufactures it., a professional lithium battery pack manufacturer based in Shenzhen, China, with global export experience and compliance to international safety and quality standards including GB/T18287-2013, UL1642, and CE61960.
This is not a generic cell assembly. It is a finished, tested, production-ready battery pack complete with:
- Integrated PCM (Protection Circuit Module) for cell-level safety
- Industrial-grade XT60H-F output connector
- Heavy-gauge AWG14 output leads (100mm)
- Compact form factor: 58 × 63 × 68mm (±3mm)
Full Specifications: 11.1V 6000mAh Li-Ion Battery Pack at a Glance
Understanding the complete electrical profile of a battery pack is essential before committing to a design. Below are the full specifications for the Himax HLI-GB03-1364.
Cell-Level Specifications
| Parameter | Value |
| Cell Type | Lithium-ion 18650 |
| Cell Model | Li-ion 18650-2000 |
| Cell Nominal Voltage | 3.7V |
| Cell Nominal Capacity | 2000mAh |
| Cell Minimum Capacity | 1950mAh |
| Cell Internal Impedance | ≤25mΩ |
| Cell Dimensions | Max. 18.4 × 65.5mm |
| Cell Weight | Approx. 43g |
Battery Pack Specifications
| Parameter | Value |
| Pack Configuration | 3S3P (9 cells total) |
| Nominal Voltage | 11.1V |
| Nominal Capacity | 6Ah (6000mAh) |
| Minimum Capacity | 5.7Ah |
| Energy | 66.6Wh |
| Charge Voltage | 12.6V |
| Discharge Cut-Off Voltage | 8.25V |
| Standard Charge Current | 1.2A |
| Maximum Charge Current | 3A |
| Standard Discharge Current | 1.2A |
| Max. Continuous Discharge Current | 12A |
| Charge Method | CC/CV |
| Cycle Life | ≥300 cycles @ 80% SOC |
| Internal Impedance | ≤150mΩ |
| Output Connector | XT60H-F |
| Output Wire | AWG14, 100 ± 5mm |
| Dimensions | Approx. 58 × 63 × 68mm (±3mm) |
| Weight | Approx. 400g |
| Charge Temperature Range | 0°C ~ 45°C |
| Discharge Temperature Range | -20°C ~ 60°C |
| Storage Temperature | -10°C ~ 45°C |
Why This 18650 3S Battery Pack Is Engineered for Electric Air Compressors
The design of a lithium ion battery pack for an electric air compressor involves trade-offs that general-purpose battery packs simply cannot satisfy. Here is why the Himax 11.1V 6Ah pack is a strong fit for this application category.
1. High Continuous Discharge for Motor Startup
Air compressor electric motors draw significant current during startup and sustained operation. This pack supports a maximum continuous discharge current of 12A — six times its standard 1C discharge rate. The PCM is rated to handle up to 12A charge and discharge continuously, with over-current protection triggering only above 30–50A, giving the motor controller the headroom it needs without nuisance trips.
For a 11.1V system, 12A continuous translates to 133W of sustained power output — sufficient to drive compact to mid-range electric air pump motors in cordless designs.
2. Wide Operating Temperature Range
Outdoor and industrial deployments of electric air compressorequipment often encounter temperature extremes. Rigorous tests show this pack discharges across a range of -20°C to +60°C, ensuring reliable performance in cold-morning job sites and hot-environment industrial settings alike. Charge temperature is managed conservatively at 0°C to 45°C, protecting the cells from lithium plating during low-temperature charging.
Himax’s own electrical performance data confirms:
- At +55°C: ≥90% of rated capacity retained
- At -10°C: ≥60% of rated capacity retained
3. XT60H-F Connector — The Industry Standard for High-Current Portable Systems
The XT60H-F output connector is the de-facto standard in high-current portable power applications including RC systems, cordless power tools, and electric pumps. It is rated for sustained high-amperage connections and is mechanically robust under repeated connect/disconnect cycles. For OEM manufacturers, this eliminates the need for custom connector integration and simplifies final assembly.
4. CC/CV Charging Compatible with Standard BMS Chargers
The pack uses Constant Current / Constant Voltage (CC/CV) charging up to 12.6V, accepting up to 3A charge current. This is compatible with a wide range of off-the-shelf and OEM-integrated chargers, reducing system BOM cost for manufacturers integrating this pack into a finished air compressor electric motor product.
5. 3S3P Architecture for Voltage-Current Balance
The 18650 3S3P battery pack configuration (3 cells in series × 3 cells in parallel) is a well-proven architecture for 11.1V portable systems. The series strings provide the 11.1V nominal voltage required by most brushless DC and brushed DC air compressor motors in this power class, while the parallel configuration triples the current capacity and overall capacity compared to a simple 3S1P arrangement.
PCM Protection System: Safety Built Into Every Pack
Every Himax 11.1V 6000mAh li-ion battery ships with an integrated PCM that provides multi-layer protection against the most common failure modes in field-deployed battery systems.
| Protection Function | Trigger Threshold | Response |
| Overcharge Detection | 4.25V ± 0.025V per cell | Charging cut-off within 0.5–1.5 sec |
| Overcharge Reset | 4.15V ± 0.05V per cell | Auto-resume |
| Over-Discharge Detection | 2.7V ± 0.08V per cell | Discharge cut-off within 50–150ms |
| Over-Discharge Reset | 3.0V ± 0.1V per cell | Auto-resume on charge |
| Over-Current Detection | 30–50A | Immediate cut-off |
| Short-Circuit Protection | External short detected | Immediate cut-off; reset on load removal |
| PCM Internal Resistance | ≤35mΩ | Minimizes power loss |
This protection architecture means that even under misuse conditions — a shorted output cable during assembly, an over-discharged cell from extended storage, or a faulty charger — the pack will protect itself and the host equipment from damage.
Safety Test Results: Mechanical and Cell-Level Validation
For OEM buyers, regulatory compliance and real-world safety validation are non-negotiable. The Himax HLI-GB03-1364 has passed the following test protocols:
Mechanical Performance
Crush Test: Applied 13kN of force via hydraulic ram — No fire, No explosion.
Drop Test: 1-meter free-fall onto concrete, two axes — No explosion, No fire, No smoke.
Vibration Test: 10–55Hz harmonic sweep, 1.6mm amplitude, 30 minutes per axis (X/Y/Z) — No leakage, No fire, No explosion.
Cell-Level Safety
Overcharge: 3C charge rate sustained for 7 hours — No explosion, No fire.
Over-Discharge: 1C discharge for 2.5 hours — No explosion, No fire.
Short Circuit: External short at ≤50mΩ load — Surface temperature below 150°C. No explosion, No fire.
Thermal Abuse: Oven test to 130°C at 5°C/min, held 30 minutes — No explosion, No fire.
These results reflect compliance with GB/T18287-2013, UL1642, and CE61960 standards — essential documentation for product safety certification in North American, European, and Asian markets.
Bulk Procurement: What OEM Buyers and Distributors Need to Know
For procurement teams managing volume orders of lithium ion battery packs for air compressor electric motor assemblies, supply chain reliability is as important as technical performance. Here is what Himax provides at the production level.
Pre-Shipment Quality Inspection
Each unit undergoes a three-point pre-shipment check: open-circuit voltage, internal resistance measurement, and PCM function verification. Himax applies an AQL 0.65 acceptance quality limit — one of the most stringent levels used in consumer and industrial electronics manufacturing.
Shipping State
Packs are shipped at 30–70% state of charge (shipment voltage: 11.1V – 11.85V), which is both the safest transport state for lithium-ion cells and compliant with IATA/ICAO regulations for air freight of lithium batteries.
Warranty
Himax provides a 12-month warranty from the date of shipment, covering defects attributable to the manufacturing process. This warranty is clearly scoped and backed in writing.
Customization for OEM Integration
Standard production specifications can be adapted for OEM requirements including:
- Custom dimensions within structural limits
- Alternative output connectors (replacing XT60H-F)
- Different wire gauge or lead length
- Custom labeling and packaging for private-label products
- Voltage or capacity variants (e.g., 14.8V 4S or higher capacity 3S packs)
Contact Himax Electronics directly to discuss your production volume and technical requirements.
Frequently Asked Questions
Q: What voltage is a 3S lithium ion battery pack?
A: A 3S lithium-ion battery pack has a nominal voltage of 11.1V (3 × 3.7V). Its fully charged voltage is 12.6V and its discharge cut-off voltage is typically 8.25V (2.75V per cell).
Q: Can this 11.1V 6000mAh battery be used in an electric air compressor?
A: Yes. With a 12A maximum continuous discharge current and an XT60H-F output connector, this pack is well-suited for compact to mid-range electric air compressor motors operating in the 10–12V DC range.
Q: What is the maximum discharge current of this 18650 3S battery pack?
A: The maximum continuous discharge current is 12A. The PCM’s over-current protection triggers at 30–50A, providing a safe operating margin for motor surge currents at startup.
Q: How many charge cycles does this battery support?
A: The pack achieves ≥300 cycles. while retaining ≥80% of its original capacity — measured at standard charge and discharge conditions (1.2A, 20±5°C).
Q: Is this battery pack approved for international air freight?
A: The pack complies with GB/T18287-2013, UL1642, and CE61960. It ships at 30–70% SOC in accordance with IATA lithium battery transport guidelines. Buyers should confirm specific import documentation requirements for their destination country.
Q: What charger does this battery require?
A: Use a CC/CV lithium-ion charger rated for 12.6V with a charge current of 1.2A (standard) to 3A (maximum). Do not use lead-acid or NiMH chargers, and do not exceed 12.6V charge voltage.
Conclusion: A Production-Ready Power Solution for Air Compressor OEMs
The Himax 11.1V 6000mAh li-ion battery pack delivers the combination of voltage, current capacity, protection depth, and manufacturing quality that electric air compressor OEMs and bulk buyers require. Its 18650 3S3P architecture, 12A continuous discharge capability, multi-layer PCM protection, industrial XT60H-F connector, and compliance with international safety standards make it a dependable, integrator-ready power source for portable and semi-stationary electric air compressor motor applications.
Whether you are sourcing for your own production line, evaluating a battery replacement for an existing product, or developing a new cordless air compressor design, the Himax HLI-GB03-1364 is engineered to meet the demands of the application — and the expectations of the market.
Ready to discuss volume pricing, samples, or custom specifications? Visit himaxelectronics.com or contact the Himax sales team directly to request a quotation.
By Shawn | Battery Engineer – Power System Design
© Himax Electronics. All specifications subject to change without notice. Contact Himax Electronics for the latest certified documentation before finalizing any design integration.
