ShenZhen ManLi Technology Co., LTD.
| Payment Terms | T/T,L/C |
| Nominal Voltage | 3.6V |
| Capacity | 4000mAh |
| Standard Charge Current | 0.5C (2.0 A) |
| Discharge Cut-off Voltage | 3.0 V |
| Internal Resistance | ≤ 12 mΩ |
| Self-Discharge Rate | ~10% per month |
| Storage Temperature | -20°C to 35°C |
| Cycle life | ≥ 500 cycles |
| Model Number | NI-CD 4000mAh |
| Place of Origin | China |
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Product Specification
| Payment Terms | T/T,L/C | Nominal Voltage | 3.6V |
| Capacity | 4000mAh | Standard Charge Current | 0.5C (2.0 A) |
| Discharge Cut-off Voltage | 3.0 V | Internal Resistance | ≤ 12 mΩ |
| Self-Discharge Rate | ~10% per month | Storage Temperature | -20°C to 35°C |
| Cycle life | ≥ 500 cycles | Model Number | NI-CD 4000mAh |
| Place of Origin | China | ||
| High Light | Rechargeable NiCD battery pack for power tools ，High drain 3.6V NiCD battery ，4000mAh industrial NiCD battery pack | ||
Excellent High-Rate & Pulse Discharge: Ni-Cd chemistry excels at delivering very high currents with minimal voltage drop, making it ideal for power tools and motor starts.
Superior Low-Temperature Performance: Maintains a higher percentage of its capacity and performance in cold environments (-20°C) compared to other rechargeable chemistries.
Extremely Rugged & Long Lifespan: Withstands overcharge, over-discharge, and physical abuse better than most batteries. Can endure thousands of cycles with proper maintenance.
Fast Charge Capable: Can be charged at 1C or higher rates with appropriate charge termination controls.
Specification
|
Voltage |
3.6 V |
|
Capacity |
4000 mAh (4.0 Ah) |
|
Discharge cut-off voltage |
3.0 V |
|
Max. Continuous Discharge Current |
10.0 A (2.5C) |
|
Peak Discharge Current (Pulse) |
20.0 A (5C) |
|
Standard charge current |
0.5C (2.0 A) |
|
Internal Resistance |
≤ 12 mΩ |
|
Working teerature |
Charge: 0°C to 45°C |
|
Discharge: -20°C to 60°C |
|
|
Storage Temperature |
-20°C to 35°C |
|
Self-Discharge Rate |
~10% per month |
|
Cycle life |
≥ 500 cycles |
Applications
Power Tools: Cordless drills, saws, impact wrenches (especially older or professional models).
Emergency & Backup Systems: Emergency lighting, UPS systems, where reliability is critical.
RC Hobby Models: High-performance radio-controlled cars, boats, and aircraft requiring burst power.
Professional & Industrial Equipment: Portable medical devices, two-way radios, railway signaling.
Warnings & Precautions
Charging
Use a Ni-Cd/Ni-MH Smart Charger: Always use a charger with -ΔV (negative delta voltage) detection or a timer specifically designed for Ni-Cd/Ni-MH chemistry. Never use a constant voltage charger.
Avoid Overcharging: While tolerant, prolonged overcharge causes heat buildup and accelerates degradation. Do not leave on charge indefinitely.
Memory Effect Management: To minimize the "memory effect," it is recommended to periodically perform a full discharge (to 3.0V) followed by a full charge cycle.
Discharging
Deep Discharge Tolerance: Can be fully discharged to 0V per cell without immediate damage, but regular deep cycling is not recommended for longevity.
Current Limits: Although capable of high currents, continuous operation at the maximum rating will generate significant heat.
Ventilation: Ensure adequate ventilation during high-rate charge and discharge to disperse gases.
Storage & Handling
Storage State: For long-term storage (>6 months), it is best to store the pack in a fully discharged state to minimize crystal growth (memory effect).
Reconditioning: After prolonged storage, perform 2-3 full charge/discharge cycles to restore full capacity.
Physical Care: Avoid short-circuiting the terminals, which can generate extreme heat.
Company Details
Business Type:
Manufacturer
Employee Number:
100~300
Ecer Certification：
Verified Supplier
Shenzhen Manli Technology Co., Ltd. is a high-tech manufacturing enterprise specializing in the R&D, production, and sales of lithium batteries.The product portfolio encompasses a wide range of battery types, including high-capacity, low self-discharge, power-type, and high/low-temperature varia... Shenzhen Manli Technology Co., Ltd. is a high-tech manufacturing enterprise specializing in the R&D, production, and sales of lithium batteries.The product portfolio encompasses a wide range of battery types, including high-capacity, low self-discharge, power-type, and high/low-temperature varia...
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