3.6V 16.8Ah 1S4P 21700 Li-ion Ultra-Low Temp Battery Pack

  • 16.8Ah capacity with 3.6V output
  • 21700 Li-ion cells in 1S4P configuration
  • Operates from -40°C to 55°C
  • Fast charging (8.4A max)
  • Built-in BMS protection
  • High energy density (190 Wh/kg)
  • Lightweight (300g) and compact

Specification

Parameter Battery Pack Cell
Rated Capacity 16.8Ah 4200mAh (min 4000mAh)
Voltage 3.6V 3.6V (nominal)
Max Charge Current 8.4A 8.4A
Discharge Cutoff Voltage 2.5V 2.5V
Cycle Life 500 cycles @25°C 500 cycles @80% capacity
Operating Temperature -40°C to 55°C -40°C to 55°C
Dimensions 25x90x75mm 21700 standard
Weight 300g 70g (per cell)
Connector Options X.54, P.54, DC5521 N/A

Application

Extreme Cold Environment Power Solutions

Ideal for polar research equipmentarctic exploration tools, and low-temperature scientific instruments. Engineered to maintain stable performance in temperatures as low as -40°C, ensuring reliable power for data loggers, sensors, and communication devices in harsh climates.

Emergency & Rescue Operations in Frigid Zones

Built for frigid zone rescue gearmedical equipment, and survival kits where consistent energy is critical. Supports GPS trackersemergency lighting, and portable heaters during sub-zero missions.

High-Capacity Energy Storage for Low-Temperature Devices

Optimized for cold-zone dronesindustrial IoT sensors, and outdoor surveillance systems. Delivers 16.8Ah capacity and 3.6V output to extend runtime for devices operating in freezing conditions.

Technical Advantages

  • 1S4P Configuration: Balances high capacity (16.8Ah) with stable discharge, ideal for low-temperature applications.
  • Ultra-Low Temp Performance: Operates reliably at -40°C to 55°C, outperforming standard Li-ion batteries.
  • High Energy Density535 Wh/l (volumetric) and 190 Wh/kg (gravimetric) for compact, lightweight power.
  • Fast Charging: Supports 0.5C charge rate (8.4A max) for rapid energy replenishment.
  • Advanced Safety: Integrated BMS for overcharge/discharge protection and thermal stability.

Why Choose This Battery?

  • Cold-Climate Reliability: Engineered for sub-zero environments with minimal voltage drop.
  • Extended Cycle Life500+ cycles at 25°C, ensuring long-term use even under heavy loads.
  • Lightweight Design300g weight and 25x90x75mm size for easy integration into portable devices.
  • Low Self-Discharge: Maintains charge during storage, critical for emergency equipment.
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