Discover Hypercell’s INR18650 wide-temperature Li-ion cells (-40°C to 85°C). Featuring up to 70% retention at -40°C, full MES traceability, multi-country certifications (UL1642, CB, KC, PSE), and custom OEM battery pack solutions.
Extreme Climate Challenges in Next-Gen Industrial Power
Standard lithium-ion batteries suffer severe failure in extreme outdoor or industrial environments. At -20°C and below, common liquid electrolytes freeze, leading to spiked internal resistance and drastic voltage drops. Conversely, continuous operation or storage at temperatures above 60°C accelerates internal side reactions, capacity fade, and severe thermal hazards.
For mission-critical applications—ranging from arctic monitoring stations and maritime telemetry to aerospace devices—power supply failure is not an option.
To resolve these environmental and reliability bottlenecks, Hypercell offers its specialized INR18650 Wide-Temperature Cell Series, combining extreme temperature performance with Full-Process MES (Manufacturing Execution System) Quality Traceability for global OEM/ODM brand partners.
Proven Low & High-Temperature Performance
Engineered with low-impedance electrode architectures and modified electrolyte formulations, Hypercell’s wide-temperature INR18650 cells retain exceptionally high energy output across severe thermal swings.
Key Thermal & Electrical Capabilities:
Extended Voltage Range: 2.00V ~ 4.20V (Maximizing energy extraction in low-temp environments)
Extreme Discharge Range: -40°C to 85°C
Extreme Charging Range: -20°C to 60°C
Discharge Capacity: Retains up to 60% – 70% of initial capacity (at 0.2C)
Storage Stability: Retains >85% – 90% capacity retention after 1,000 hours of high-temp aging
Long Cycle Life: >70% initial capacity after 500 cycles (0.3C charge/discharge)
INR18650 Wide-Temperature Model Matrix
| Model | Typical Capacity(mAh) | Nominal Voltage(V) | Max.Charge Voltage(V) | Max.Charge Current(C Rate) | Max.Cont. Discharge(C Rate) | Internal Resistance（mΩ） | Cycle Life |
| INR18650T | 2000 | 3.6 | 4.2 | 1.0C | 5.0C | ≤40 | ≥500 |
| INR18650S | 2900 | 3.6 | 4.2 | 1.0C | 3.0C | ≤28 | ≥500 |
| INR18650-34LP | 3350 | 3.6 | 4.2 | 0.5C | 2.0C | ≤45 | ≥500 |
High-Reliability Deployment Scenarios
Hypercell INR18650 wide-temperature solutions cater to ultra-demanding industrial, medical, and consumer electronics applications:
1. Aerospace & Space Operations: Satellite communication base stations and high-altitude devices operating under extreme thermal fluctuations.
2. Marine & Extreme Off-Shore: Marine drilling platforms, maritime signal systems, and deep-sea exploration tools.
3. Polar Expeditions & Extreme Climate Monitoring: Arctic meteorological nodes, outdoor telemetry, and high-altitude environmental sensors.
4. Special Industrial & Field Medical Supplies: Ruggedized vehicle tracking, smart grid inspection gear, and portable rescue devices.
End-to-End MES Traceability & Global Certification
For B2B brand owners, battery safety and lot consistency are critical purchasing criteria. Hypercell enforces stringent quality management backed by global certification and digital transparency:
Full-Process MES Tracking: Every cell is QR/Barcode serialized. From raw material inspection and automated IR/capacity matching to BMS welding and final End-of-Line (EOL) testing, 100% of manufacturing parameters are logged and permanently traceable.
Global Compliance Ready: Fully certified with UL1642, CB, KC, PSE, UN38.3, and DG (Dangerous Goods) compliance, facilitating smooth global shipment and market clearance for our OEM partners.
Supply Chain Continuity: Low supply continuity risk with standard export packing (200 PCS/Carton) and flexible OEM pack assembly.
Tailored OEM/ODM Custom Battery Pack Engineering
Beyond supplying standard cells, Hypercell acts as an end-to-end battery engineering partner:
Custom Wide-Temp BMS: Specialized protection boards with dynamic low-temp charging protection, high-temp cutoff, and accurate SOC algorithms.
Rugged Mechanical Designs: IP67/IP68 waterproof casings, anti-vibration structures, and thermal insulation tailored for severe operating conditions.
Partner with Hypercell
Looking for reliable wide-temperature lithium batteries backed by transparent manufacturing and international compliance? Contact our engineering team today to request testing samples or discuss custom battery pack design.
