Mass-Market Ready: Standardized 68mm by 40mm by 22mm dimensions seamlessly fit universal footwear tongue battery compartments.
Industrial-Grade Shielding: Heavy-duty flame-retardant ABS hard shell paired with an IPX6 waterproof rating protects against harsh site mud and water sprays.
Optimized Thermal Power: Supports constant 2.5A discharge and a 5A peak boost for immediate warming down to minus 12 degrees Celsius.
Engineered for Extreme Cold, Built for Rugged Work.
High-capacity 7.4V 18650 battery packs featuring IPX6 waterproofing and snap-in structural reliability. The ultimate B2B power match for industrial safety footwear.
When designing heated safety boots for active construction sites or demanding outdoor treks, the environment asks for more than just raw power. It demands physical resilience. As battery application engineers, we recognized that soft-pack lithium polymer solutions often struggle with the severe compressions, repetitive heel impacts, and flexing inherent to industrial footwear. That is why this 7.4V system leverages premium grade-A 18650 cylindrical lithium-ion chemistry. Configured in a robust 2S1P array using high-stock 2000mAh cells, it delivers a long lifecycle of over 800 cycles at 80 percent depth of discharge. The entire assembly is wrapped in an impact-resistant, flame-retardant ABS hard shell with thick internal PVC brackets, achieving a verified IPX6 waterproof rating. This ensures complete electrical isolation and structural safety against static crushing up to 50kg, giving outdoor workers dependable warmth without structural vulnerability
From a production standpoint, global market scalability relies entirely on interface compatibility. We engineered this compact battery pack with a universal Molex Mini-Fit 8-Pin positive-locking power interface, ensuring total cross-compatibility with standard outdoor apparel and footwear heating pad wiring. For daily user convenience, a separate Micro-USB charging port is protected by a tightly sealed rubber dust plug to maintain airtight integrity. Internally, a dedicated 2S protective BMS actively manages a smart UART serial protocol, continuously tracking cell temperature via an integrated 10K NTC thermistor to perfectly link with dual-stage temperature control circuit boards. Fully certified under UN38.3 and manufactured under strict ISO9001 quality frameworks, this solution fully meets global compliance benchmarks including IEC 62133 and GB 31241. It stands as a mature, field-tested mass-production asset with hundreds of thousands of sets active in the market, ready for instant integration into your brand’s winter inventory.
Specifications
7.4V 18650 2000mAh Li-ion Battery Pack
Battery Chemistry
Standard Cylindrical Tri-element Li-ion
Cell Model Used
18650 2000mAh
Configuration Array
2S1P (Two Series, One Parallel)
Nominal Voltage
7.4V (Tolerance plus or minus 0.05V)
Rated Capacity
2000mAh (0.2C discharge down to 5.0V)
Initial Pack AC Resistance
Less than or equal to 120 mOhm (at 25C)
Over-Charge Hardware Lock
8.5V (Tolerance plus or minus 0.05V)
Over-Discharge Hardware Lock
5.0V (Tolerance plus or minus 0.05V)
Over-Current Protection Threshold
11A (Tolerance plus or minus 0.3A)
High-Temperature Protection Cut
Discharge cuts at 70C; Charge cuts at 60C
Physical Dimensions
68mm by 40mm by 22mm (Tolerance 0.3mm)
Enclosure Packaging Technology
Flame-retardant thickened PVC bracket and ABS shell
Ingress Protection Rating
IPX6 Waterproof
Main Power Connector
Molex Mini-Fit 8-Pin Positive Lock Upright
Embedded Communication Protocol
UART Simple Serial Port
Mechanical Resistance Integrity
50kg Static Crushing with Zero Structural Damage
Transportation Safety Clearance
UN38.3 Certified
Quality Production Management
Manufactured in ISO9001 Compliant Facility
Frequently Asked Questions
Helpful Procurement Insights for Heated Footwear Brands
Navigating the intersection of wearably safe electronics and heavy-duty industrial apparel often sparks critical manufacturing questions. Whether you are addressing severe winter site work conditions or managing tight supply chain budgets, our engineering team has summarized the top five technical inquiries from leading safety footwear brands to streamline your procurement process.
How does this 18650 pack perform in sub-zero site conditions compared to soft-pack options?
Cylindrical 18650 cells naturally possess superior structural integrity and low-temperature performance compared to polymer pouch cells. Our formula guarantees a capacity retention rate of more than 80 percent even at minus 10 degrees Celsius, maintaining a steady discharge down to minus 12 degrees Celsius. This completely eliminates the sudden voltage drops common in lower-grade batteries when workers step onto frozen ground or icy mud.
Will the battery lose capacity quickly if consumers use their heated boots heavily every winter?
Absolutely. Footwear hardware must endure severe mechanical stress. This battery pack is engineered with an extra-thick, flame-retardant ABS hard outer casing and an internal structural PVC grid. It successfully passes a 50kg static crushing test and over 500 rounds of latch insertion/extraction cycles without loose connections, keeping the internal cells completely isolated from environmental compressions.
What built-in safety hardware protection mechanisms guard the end-user against overheating?
Safety is non-negotiable for wearable power. The pack features a hardware-locked 2S cylindrical BMS protection board that actively monitors overcharge (at 8.5V), overdischarge (at 5.0V), and overcurrent (at 11A) thresholds. If an anomaly occurs, the circuit auto-locks and safely resets once the external fault is cleared. Furthermore, thermal sensors automatically cut off all output if discharge temperatures reach 70 degrees Celsius or charging hit 60 degrees Celsius.
Is the connector interface universal enough to drop directly into our current production line?
Yes, we utilize a standardized Molex Mini-Fit 8-Pin positive-locking power interface. This layout is fully cross-compatible with most industry-standard lithium-polymer apparel wiring lines, meaning you can drop this cylindrical pack into your current assembly configuration without redesigning your male connection cables or your intermediate temperature controller boards.
How stable is your long-term inventory and cell supply for high-volume autumn/winter ordering?
Because this scheme relies on high-volume, mainstream cylindrical power 18650 cells rather than a proprietary custom footprint, our factory maintains massive, continuous raw material stock in Shenzhen. We guarantee zero cell swelling, no recycled or B-grade components, and a steady calendar shelf-life degradation of less than 20 percent over three full years of storage. To request a sample evaluation batch or a full technical test report, please visit our official engineering portal at https://www.himaxbattery.com.
