The 25mm² Pure Copper Flexible DC Cable is a high-quality, full-gauge battery cable designed for high-current DC power applications
Made from pure copper conductors, this cable offers excellent electrical conductivity, flexibility and reliable current transfer
Its flexible construction makes it easy to route and install inside LiFePO4 battery packs, battery cabinets, solar systems, inverter systems, UPS systems and EV applications
The 25mm² cross-sectional area provides a
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Product Description
Short Description
The 25mm² Pure Copper Flexible DC Cable is a high-quality, full-gauge battery cable designed for high-current DC power applications. Made from pure copper conductors, this cable offers excellent electrical conductivity, flexibility and reliable current transfer.
Its flexible construction makes it easy to route and install inside LiFePO4 battery packs, battery cabinets, solar systems, inverter systems, UPS systems and EV applications.
The 25mm² cross-sectional area provides a strong current-carrying capability while maintaining flexibility for professional battery installations.
Key Features
25mm² Full Gauge
100% Pure Copper Conductor
Highly Flexible Construction
Excellent Electrical Conductivity
Low Electrical Resistance
Suitable for High-Current DC Applications
Suitable for LiFePO4 Batteries
Suitable for Solar Systems
Suitable for Inverter Batteries
Suitable for UPS Systems
Suitable for Battery Cabinets
Suitable for EV Battery Applications
Easy to Route and Install
Suitable for Battery Terminals and DC Connections
Designed for Professional Battery Assembly
Technical Specifications
Specification Details
Cable Type Flexible DC Battery Cable
Conductor Material Pure Copper
Cable Size 25mm²
Gauge Full Gauge
Construction Multi-Strand Flexible Copper
Application DC Battery & Power Systems
Polarity Suitable for Positive & Negative DC Connections
Battery Chemistry LiFePO4 & Other Compatible Battery Systems
Applications Solar, Inverter, UPS, EV & Energy Storage
Note: Actual allowable current depends on cable length, insulation temperature rating, ambient temperature, installation method, bundling and permissible voltage drop. The BMS, fuse and terminals should always be selected according to the complete system.
Where Can 25mm² Cable Be Used?
🔋 12V LiFePO4 Batteries
25mm² cable is suitable for many 12V LiFePO4 battery applications, particularly battery systems using approximately 100A-class BMS/load levels, subject to cable length and installation conditions.
For example:
12.8V 100Ah LiFePO4 Battery
12.8V 200Ah LiFePO4 Battery
For very high-current 12V systems or long cable runs, a larger cable may be preferable.
⚡ 24V LiFePO4 Batteries
25mm² copper cable can be useful for 24V battery systems, where the required current and cable length are within the cable's permissible operating limits.
Examples:
24V 100Ah LiFePO4
24V 200Ah LiFePO4
24V 314Ah LiFePO4
The actual cable size should be selected based on the inverter/load current and cable length, rather than battery Ah capacity alone.
🔋 48V / 51.2V LiFePO4 Batteries
Because higher-voltage systems require less current for the same power, 25mm² cable can be useful in many 48V/51.2V battery applications.
Examples:
51.2V 100Ah
51.2V 200Ah
51.2V 314Ah
For high-power inverters, cable sizing should be calculated according to the maximum DC current and cable run.
Example: 5kW Inverter
For a 51.2V battery system:
5000W ÷ 51.2V ≈ 98A
Therefore, a 25mm² copper cable can be a practical choice for some 5kW-class 51.2V systems when the cable length, installation and protection are appropriately designed.
For larger inverters, the required current increases and a larger cable may be required.
Example: 8kW Inverter
For a 51.2V system:
8000W ÷ 51.2V ≈ 156A
At this current level, cable selection becomes particularly dependent on length, insulation rating, ambient temperature and installation method. A larger conductor or parallel cables may be appropriate rather than automatically using a single 25mm² cable.
Why Pure Copper?
Pure copper provides excellent electrical conductivity compared with many alternative conductor materials.
Benefits include:
Low electrical resistance
Efficient power transfer
Reduced voltage drop
Better suitability for high-current DC applications
Good flexibility when constructed with fine strands
Reliable battery-terminal connection
Flexible Multi-Strand Construction
The cable uses a flexible multi-strand construction rather than a rigid solid conductor.
This makes it easier to:
Bend around battery terminals
Route inside battery cabinets
Connect BMS terminals
Connect inverter terminals
Install inside compact battery boxes
Manage positive and negative DC wiring
This is particularly useful when building custom LiFePO4 battery packs.
Suitable LiFePO4 Battery Applications
25mm² pure copper cable can be used in battery systems such as:
12V 100Ah LiFePO4
12V 200Ah LiFePO4
24V 100Ah LiFePO4
24V 200Ah LiFePO4
24V 314Ah LiFePO4
48V / 51.2V 100Ah LiFePO4
48V / 51.2V 200Ah LiFePO4
48V / 51.2V 314Ah LiFePO4
However, the Ah rating does not determine cable size by itself. The correct cable depends primarily on the maximum current, cable length and allowable voltage drop.
Ideal Applications
☀️ Solar Battery Systems
For connecting LiFePO4 batteries to compatible solar inverters and DC equipment.
⚡ Inverter Systems
Suitable for battery-to-inverter connections when the required current is within the cable's rated capability.
🔋 Battery Packs
Useful for connecting battery terminals, BMS and high-current DC components.
🏠 Home Backup
Suitable for residential LiFePO4 backup systems.
🏢 Commercial Energy Storage
Can be used in appropriately designed battery cabinets and energy-storage systems.
🚗 EV Applications
Can be used for suitable low-voltage/high-current EV battery wiring, provided the cable's current and thermal requirements are met.
Installation Recommendations
For safe and reliable installation:
Use appropriately rated lugs/terminals.
Use a properly sized DC fuse or breaker.
Keep cable runs as short as practical.
Avoid sharp bends that can damage insulation.
Ensure terminals are properly crimped.
Make sure terminal connections are tight.
Avoid exceeding the cable's allowable temperature.
Select cable size according to actual current and voltage-drop requirements.
Important
25mm² cable should not be selected solely because a battery is 100Ah, 200Ah or 314Ah. The maximum continuous current, peak current, cable length and installation conditions must be considered.
Recommended Uses by Battery
Battery System 25mm² Cable Suitability
12.8V 100Ah ✅ Suitable for many ~100A-class applications
12.8V 200Ah ✅ Depends on BMS/load current
25.6V 100Ah ✅ Suitable for many applications
25.6V 200Ah ✅ Depends on current & cable length
25.6V 314Ah ✅ Depends on inverter/load current
51.2V 100Ah ✅ Very suitable for many applications
51.2V 200Ah ✅ Depends on system current
51.2V 314Ah ✅ Depends on system current
High-power 48V/51.2V systems ⚠️ Calculate cable size before installation
Package Includes
1 × 25mm² Pure Copper Flexible DC Battery Cable
Available for Positive (+) and Negative (−) battery connections.
Important Note
Current-carrying capacity is installation-dependent. For professional battery systems, always size the cable together with the BMS, fuse/breaker, terminal, inverter current, cable length and voltage-drop requirement.
Frequently Asked Questions
A 25mm² battery cable is a high-current DC cable with a 25mm² conductor cross-sectional area, designed for battery, inverter, solar, UPS and other DC power applications.
Yes. This cable is specified as a pure copper conductor with a full 25mm² cross-sectional area.
Yes. It is specified as a full-gauge 25mm² cable, providing the complete stated conductor cross-section.
Yes. Its multi-strand construction provides flexibility, making it easier to install and route around battery terminals and inside battery cabinets.
Yes. It is suitable for many LiFePO4 battery applications, subject to the required current, cable length and installation conditions.
Yes. It can be used for suitable 12V-class LiFePO4 systems when the required current is within the cable's allowable operating range.
Yes. It can be used for compatible 24V-class battery systems.
Yes. 25mm² cable can be used in many 48V/51.2V battery systems, depending on current, cable length and installation conditions.
Yes. It can be suitable for a 100Ah battery, but the correct cable size should be determined by the maximum current rather than battery capacity alone.
Yes. It may be suitable depending on the BMS current, inverter/load current and cable length.
Yes. It can be used for a 314Ah battery where the actual operating current and installation conditions are suitable.
It can be used for LiFePO4 batteries, solar systems, inverter batteries, UPS systems, battery cabinets, EVs and energy-storage systems.
Yes. It can be used for battery-to-inverter connections when the cable is appropriately sized for the inverter's DC current.
Yes. It is suitable for connecting battery components in compatible solar energy-storage systems.
Yes. It can be used for compatible DC battery connections in UPS and backup-power systems.
Yes. It can be used in suitable EV battery applications where the cable's current and thermal requirements are properly considered.
Pure copper offers excellent electrical conductivity and low resistance, making it well suited to high-current DC power connections.
A flexible cable is easier to bend, route and install, especially inside battery boxes, battery cabinets and compact inverter installations.
No. Current-carrying capacity depends on cable length, insulation rating, ambient temperature, installation method, bundling and allowable voltage drop.
No. Cable sizing is primarily based on maximum current, cable length and permissible voltage drop, not simply the battery's Ah rating.
It can be suitable in some 48V/51.2V systems, but the actual cable size should be calculated based on the inverter's maximum DC current, cable length and installation conditions.
It depends on the system voltage, current, cable length and installation method. High-power systems may require a larger cable or multiple parallel cables.
Yes. It can be used for both positive (+) and negative (−) DC battery connections.
It can be used for appropriate high-current BMS connections where the BMS terminal and required current are compatible with the cable.
Yes. Suitable cable lugs/terminals can be properly crimped onto the cable according to the battery and inverter terminal size.
Yes. A properly rated DC fuse or breaker is recommended for appropriate battery and inverter installations.
Yes. Its flexible construction makes it convenient for wiring inside LiFePO4 battery cabinets and energy-storage enclosures.
Yes. Short cable runs can help reduce voltage drop, but the required conductor size must still match the expected current.
Excessive voltage drop can reduce system efficiency and cause equipment to receive lower voltage than intended. Proper cable sizing helps minimize voltage drop.
Consider maximum continuous current, peak current, cable length, voltage, ambient temperature, installation method, insulation rating and permissible voltage drop.
Yes. It can be used for suitable residential LiFePO4 battery and inverter backup systems.
Yes. It can be used in appropriately designed commercial battery systems where its current rating and installation requirements are satisfied.
Yes, it is designed for high-current DC applications, but the actual permissible current must be determined according to the complete installation.
A full-gauge cable provides the stated conductor cross-sectional area, helping ensure the expected electrical performance when properly installed.
Yes. It can be used for compatible lithium-ion battery systems when the voltage, current and installation requirements are appropriate.
Yes. It can be used with compatible JK BMS battery systems for high-current connections, provided the BMS terminals and required current are suitable.
Yes. It can be used for appropriate DC battery connections to compatible solar and hybrid inverters.
Its combination of 25mm² full-gauge construction, pure copper conductor and flexible multi-strand design makes it suitable for many battery and DC power applications.
Use appropriately sized lugs, proper crimping tools, suitable DC protection, secure terminal connections and keep cable runs as short as practical.
No. The correct cable size depends on the actual current, voltage, cable length and installation conditions. For high-power applications, cable sizing should be calculated before installation.
