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Model Number : H-C4000mAh 3.6V
Certification : CE, UL
Place of Origin : China
MOQ : 1000PCS
Payment Terms : L/C,T/T,Western Union
Delivery Time : 35 working days
Packaging Details : Industrial Pakcage
voltage : 3.6V
capacity : 4000mAh
Dimension : 26*151mm (Diameter*Height)
Weight : 230g
Cycle life : 500 cycles
Standard Charge : 0.1C (400mA) for 14-16 hours
Discharge Cut-off Voltage : 3.0V (1.0V per cell)
Fast Charge Current : 0.5C (2000mA) with -ΔV termination
Name : Rechargeable Flashlight Battery
Robust Performance in Various Temperatures: NiMH chemistry can perform reliably in a range of conditions, with discharge operating temperatures from -20°C to +60°C .
Long Cycle Life: This battery can withstand over 500 charge-discharge cycles while maintaining more than 80% of its initial capacity, offering good longevity and value .
Environmentally Friendly: NiMH batteries are generally considered a "green" choice as they do not contain toxic heavy metals like cadmium or lead .
Maintenance and Storage: For long-term storage, it's recommended to store the battery at a partial state of charge (around 40-50%) in a cool, dry place .
Specifications
| Model | H-C4000mAh 3.6V |
| Max Dimension | 26*151mm (Diameter*Height) |
| Voltage | 3.6V |
| Nominal Capacity | 4000mAh |
| Iedance | <40 mΩ |
| Discharge cut-off voltage | 3.0V |
| Maximum Charge voltage | 4.2V |
| Standard charge current | 0.1C (400mA) for 14-16 hours |
| Standard discharge current | 0.2C |
| Approx Weight | 230g |
| Working teerature | Charge:0-45 Celsius degree |
| Discharge:-20-50 Celsius degree | |
| Storage teerature | minus 20 - 45 Celsius degree |
| Cycle life | 500 cycles |

Emergency Lighting: A common application for batteries of this voltage and capacity .
Other Portable Devices: Various portable electronics requiring a robust power source.
Warnings & Precautions
Avoid Overcharging: While NiMH batteries are somewhat tolerant, excessive overcharging can damage them and reduce their lifespan. Use smart chargers with proper termination methods (-ΔV or temperature sensing) .
Temperature Monitoring: Charge only within the specified temperature range (0°C to +45°C). Charging outside this range can lead to reduced capacity and potential damage .
Temperature Management: Avoid discharging outside the recommended temperature range (-20°C to +60°C). Extreme cold reduces performance; extreme heat accelerates aging .
Cool and Dry Environment: Store in a cool, dry place away from direct sunlight, moisture, and heat sources .
Isolation: Store batteries separately in non-conductive containers to prevent short circuits and contact with metal objects .
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NiMH 3.6V C4000mAh Rechargeable Flashlight Battery For Caing Lantern Images |