Home / KYS4040IL Low-Temperature Lithium Battery Pack
The KYS4040IL is a rugged lithium battery engineered for extreme cold. It features intelligent SMBus communication, an integrated LED state-of-charge indicator, and comprehensive protection against overcurrent, over-temperature, and short circuits. This reliable power solution is ideal for demanding low-temperature applications requiring consistent performance.
- Nominal Voltage: 10.8 V
- Rated Capacity: 8100 mAh
- Typical Capacity: 8400 mAh
- Internal Resistance: <200 mΩ @ 1kHz (25°C)
- Max. Charge Current: 8.0 A
- Max. Charge Voltage: 12.6 V
- Max. Discharge Current: 8.0 A
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Product Details
Product Features
- Shelf item, minimum order 1 piece
- Standard SMBus v1.1 interface
- Integrated LED State of Charge (SOC) indicator
- Meets JEITA charging optimization rules
- Comprehensive safety protection functions, such as overcharge, over-discharge, overcurrent, over-temperature, and short circuit protection
- Features balancing function to effectively improve battery life
- Accurate power calculation
Product Application
- Low-temperature applications at -40℃
Technical Parameters
| Overview | |
| Initial Shipment Capacity | 20%~30% |
| Certifications | – |
| Operating Temperature | 0°C ~ 50°C (Charge) -40°C ~ 60°C (Discharge) |
| Storage Temperature | -40°C ~ 50°C (Max) -20°C ~ 35°C (Recommended) |
| Electrical Performance | |
| Nominal Voltage | 10.8V |
| Rated Capacity | 8100mAh |
| Typical Capacity | 8400mAh |
| Internal Resistance | <200mΩ @ 1kHz at 25°C |
| Max. Charge Current | 8.0A |
| Max. Charge Voltage | 12.6V |
| Max. Discharge Current | 8.0A |
| Cycle Life | 500 cycles ≥ 80% of rated capacity (Test standard: CC/CV charge 4.2A/12.6V; CC discharge 1.68A to 7.5V @ 25°C) |
| Size Specifications | |
| Length | 214.0mm ± 0.3mm |
| Width | 58.5mm ± 0.3mm |
| Thickness | 22.0mm ± 0.3mm |
| Weight | 486g±10g |
| Interface |  |
