| Nominal Voltage | 3.6V |
| Rated Capacity | 4.4Ah (C5) |
| Minimum Capacity | 4.2Ah (C5) |
| Rated Energy | Approx. 15.84Wh |
| Cell Configuration | 18NC-1S2P |
| AC Internal Resistance | ≤90mΩ |
| Packaging | PVC |
| Dimensions | Approx. Ø19 × 135mm |
| Weight | 90±10g |
3.6V 4.4Ah custom NCM lithium battery pack with 15.84Wh energy, 1S2P configuration, slim cylindrical PVC packaging, 1,000+ cycle life, and customizable dimensions and wiring.
The 3.6V 4.4Ah custom NCM lithium battery pack is a compact rechargeable power solution designed for portable electronics, lighting equipment, instruments, monitoring devices, and other customized OEM applications.
Featuring an 18NC-1S2P configuration, this battery pack provides approximately 15.84Wh of energy in a slim cylindrical PVC package. With a diameter of approximately 19mm, a length of approximately 135mm, and a weight of about 90g, it is suitable for equipment with limited installation space and specific power requirements.
As part of our Custom NCM Lithium Battery Packs range, this battery can be customized according to voltage, capacity, dimensions, terminals, connectors, wiring, protection parameters, and packaging requirements.
3.6V nominal voltage
4.4Ah rated capacity at C5
Approximately 15.84Wh energy capacity
18NC-1S2P configuration
Slim cylindrical battery pack design
PVC packaging
Maximum charging current of 0.88A
Maximum discharge current of 1.5A
Overcharge and over-discharge protection requirements
Charge retention of at least 80% after 28 days
Cycle life of at least 1,000 cycles with ≥70% capacity retention
Red positive and black negative wires for simple polarity identification
This 3.6V 4.4Ah NCM lithium battery pack is suitable for:
Portable lighting equipment
Emergency lighting systems
Portable instruments
Security and monitoring devices
Measuring equipment
Industrial electronic devices
Communication equipment
Compact backup power systems
Customized OEM and ODM products
The final application should be confirmed according to the equipment load, charging system, operating environment, connector requirements, and available installation space.
| Item | Specification |
|---|---|
| Product Name | 3.6V 4.4Ah NCM Lithium Battery Pack |
| Product Category | Custom NCM Lithium Battery Packs |
| Battery Type | Rechargeable NCM lithium-ion battery |
| Nominal Voltage | 3.6V |
| Rated Capacity | 4.4Ah (C5) |
| Minimum Capacity | 4.2Ah (C5) |
| Rated Energy | Approx. 15.84Wh |
| Cell Configuration | 18NC-1S2P |
| AC Internal Resistance | ≤90mΩ |
| Packaging | PVC |
| Dimensions | Approx. Ø19 × 135mm |
| Weight | 90±10g |
| Charging Voltage | 4.18-4.20V |
| Maximum Charging Current | 0.88A |
| Charge Cut-off Current | 44-88mA |
| Maximum Discharge Current | ≤1.5A |
| End-of-Discharge Voltage | Approx. 2.8V |
| Protection Requirements | Overcharge and over-discharge protection |
| Charging Wire | 22AWG |
| Wire Length | 100±5mm |
| Wire Definition | Red: positive; black: negative |
| Charging Temperature | 5°C to 45°C |
| Discharging Temperature | -20°C to 55°C |
| Charge Retention | ≥80% after 28 days |
| Cycle Life | ≥1,000 cycles, with ≥70% capacity retention |
Product dimensions do not include outgoing wires or connectors.
We provide customized NCM lithium battery pack solutions for OEM and ODM projects, including:
Voltage and capacity
Cell configuration
Battery length and diameter
PVC packaging color and structure
Terminal and connector design
Wire gauge and cable length
Protection circuit parameters
Temperature protection settings
Mounting and fixing structure
Labels and product packaging
Please provide your equipment voltage, operating current, required runtime, installation dimensions, charging method, and terminal requirements for a customized battery recommendation.
Use a dedicated lithium-ion battery charger that matches the specified charging voltage and current. Always confirm the positive and negative polarity before connection.
For system integration:
Overcharge protection voltage should be no higher than 4.20V
Over-discharge protection voltage should be no lower than 2.75V
Charging protection temperature should be set no higher than 55°C
Discharging protection temperature should be set no higher than 60°C
Do not reverse-connect, short-circuit, overcharge, over-discharge, or overload the battery
Do not connect battery packs in series or parallel unless specifically approved for the application
Do not charge below 5°C or above 45°C
Keep the battery away from fire, water, heaters, and corrosive materials
Do not connect the battery terminals directly to a power outlet
Do not disassemble the battery without professional authorization
This product is a lithium battery dangerous good. Installation, maintenance, and system integration should be performed by trained professionals.
Looking for a slim 3.6V 4.4Ah NCM lithium battery pack? Contact us with your required voltage, capacity, dimensions, discharge current, runtime, wire specification, and application environment.
We provide reliable custom NCM lithium battery packs for lighting, portable electronics, instruments, industrial equipment, and specialized OEM applications.
