This is the controller-to-battery power cable for the BigBattery 10kWh Ethos system, measuring 31.5 inches (800mm). It connects your Ethos controller to the battery unit as part of the power circuit.
Note: If you would like to review the manufacturer Product Specifications, Warranty, Brochure, etc., for this system, please refer to the "Resources (System Manuals and Warranty)" Tab above on this page.
What This Cable Is
This power cable is a system accessory for the BigBattery 10kWh Ethos platform. It is designed specifically to run between the Ethos controller and the battery unit, carrying the main power connection within that system. Beyond the length and its role in the Ethos lineup, BigBattery has not published additional specifications for this cable on the source page.
Cable Characteristics
Length: 31.5 inches (800mm)
System compatibility: BigBattery 10kWh Ethos controller-to-battery connection
Wire gauge, connector type, amperage rating, and voltage rating are [NEEDS VERIFICATION]. These details were not included in the manufacturer data provided for this listing.
Wiring & Configuration Limits
This cable is built for a single, specific role: linking the Ethos controller to the battery within a 10kWh Ethos system. It is not a general-purpose battery interconnect, and BigBattery has not published guidance on using it for series or parallel battery bank wiring. Treat it as a system-specific replacement or spare part rather than a configurable power cable.
Pro-Installer Tip
Mismatched or undersized cabling between a controller and battery is a common source of voltage drop and connector heat damage, especially at higher continuous loads. Using the manufacturer-specified cable for the exact system it was designed for prevents resistance-related heating at the lugs and avoids voltage sag that can trigger false low-voltage warnings or BMS faults. Before re-energizing the system after replacing this cable, verify torque on the terminal connections and check for continuity with a multimeter or clamp-on ammeter under load. On lithium systems like the Ethos platform, confirm the controller reads normal pack voltage and current before returning the system to full charge/discharge cycling.
Key Benefits
- Purpose-built length (31.5"/800mm) for the 10kWh Ethos controller-to-battery run
- Direct-fit replacement part for BigBattery Ethos 10kWh systems
- Simplifies sourcing a correct-length cable versus fabricating one on site
Technical Table
| Spec | Value |
|---|---|
| Length | 31.5 in (800mm) |
| System | BigBattery 10kWh Ethos |
| Function | Controller-to-battery power cable |
| SKU | CBL088-K |
Note: See "Resources (System Manuals and Warranty)" Tab above for full specifications.
Compatibility & Fitment
This cable is compatible with the BigBattery 10kWh Ethos system, specifically for the controller-to-battery power connection at 31.5 inches (800mm) in length.
It is NOT confirmed compatible with other BigBattery product lines, other Ethos capacity configurations, or third-party controllers and battery units. It is NOT sold with a controller, battery, or any other system component included — this listing is the cable only. Do not substitute a generic or aftermarket cable of a different length or gauge without confirming compatibility with your specific Ethos controller and battery hardware.
FAQ
Q: What system is this cable designed for?
A: This cable is designed for the BigBattery 10kWh Ethos system, connecting the controller to the battery.
Q: What length is this cable?
A: It measures 31.5 inches, or 800mm.
Q: Does this cable come with a controller or battery included?
A: No. This listing is for the power cable only. Controller and battery units are sold separately.
Q: Can I use this cable to wire batteries in series or parallel?
A: This cable is intended specifically for the controller-to-battery connection in a 10kWh Ethos system. BigBattery has not published guidance on using it for series or parallel battery bank wiring.
Q: What wire gauge or amperage rating does this cable have?
A: This information was not provided in the manufacturer specifications available for this listing. [NEEDS VERIFICATION]
Warranty & Support
Warranty terms for this cable are covered under BigBattery's published documentation. Refer to the "Resources (System Manuals and Warranty)" Tab above for full warranty details. If you're not sure this is the correct cable for your Ethos setup, ask us before you order — we always reply back.
