ShenZhen ManLi Technology Co., LTD.
| Payment Terms | L/C,T/T,Western Union |
| Delivery Time | 35 working days |
| Packaging Details | Industrial Pakcage |
| Name | 18650 4000mah 3.7V Rechargeable Li Ion Battery |
| Material | Lithium Ion |
| Capacity | 4000mAh |
| Voltage | 3.7V |
| Cycle Life | ≥ 500 times |
| Charge Cut-off Voltage | 4.2V |
| Weight | 48g |
| Standard Charge | 0.5C (2000mA) |
| Model Number | 18650 4000mAh 3.7V |
| Certification | CE,ROHS, UL,SGS,REACH |
| Place of Origin | China |
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Product Specification
| Payment Terms | L/C,T/T,Western Union | Delivery Time | 35 working days |
| Packaging Details | Industrial Pakcage | Name | 18650 4000mah 3.7V Rechargeable Li Ion Battery |
| Material | Lithium Ion | Capacity | 4000mAh |
| Voltage | 3.7V | Cycle Life | ≥ 500 times |
| Charge Cut-off Voltage | 4.2V | Weight | 48g |
| Standard Charge | 0.5C (2000mA) | Model Number | 18650 4000mAh 3.7V |
| Certification | CE,ROHS, UL,SGS,REACH | Place of Origin | China |
| High Light | 18650 Lithium Battery 3.7 V 3000mah ，18650 Lithium Ion 3.7 Volt 3000mha Battery ，18650 3000mah 3.7V Rechargeable Li Ion Battery | ||
Features
Long Cycle Life: Stable chemistry provides over 500 charge/discharge cycles while maintaining performance.
Excellent Discharge Performance: Stable discharge voltage platform ensures consistent power delivery.
High Safety Standards: Built-in PTC (Pressure/Temperature/Current) protection and CID (Current Interrupt Device) for enhanced safety.
Low Self-Discharge: Retains charge well during storage.
Specifications
| Rated Capacity | 4000mAh |
| Nominal Voltage | 3.7V |
| Charge Cut-off Voltage | 4.2V |
| Discharge Cut Off Voltage | 2.75V |
| Standard Charge Current | 0.5C (2000mA) |
| Max. Discharging Current | 1C (4000mA) |
| Cycle Life | ≥500 times |
| Weight | 48g |
| Operating Teerature | Charging: 0°C to +45°C Discharging:-20°C to +60°C |
| Storage Teerature | -20°C to +45°C |
Applications
High-performance Flashlights & Lanterns
Electric Bicycles & Personal Transportation (in multi-cell packs)
Portable Medical Devices
Consumer Electronics (e.g., advanced vaping devices, portable speakers)
Backup Power Supplies & UPS Systems
RC Hobbies and Drones (in multi-cell packs)
Usage precations and safety warnings
Use a dedicated Li-ion charger designed for 3.7V/4.2V batteries. DO NOT use Ni-MH/Ni-Cd chargers.
Charge within specified temperature limits (0°C to 45°C).
Never charge the battery unattended for extended periods.
Stop using the battery and charger if the battery becomes hot, smokes, swells, or smells unusual during charging.
Do not discharge below the cut-off voltage (2.75V). Deep discharge can permanently damage the cell.
Do not exceed the maximum continuous discharge current (4000mA).
Avoid short-circuiting the terminals. Never carry or store batteries loosely where metal objects (coins, keys) can contact both terminals.
Use within the specified operating temperature range (-20°C to +60°C).
Store batteries in a cool, dry place, ideally at 30-50% state of charge for long-term storage.
Keep away from children and pets.
Do not disassemble, crush, puncture, incinerate, or immerse in liquid.
Do not solder directly onto the cell body. Use spot welding for pack assembly.
If the battery is physically damaged, leaking, or swollen, discontinue use immediately and dispose of it properly.
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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