This is a 4AWG gauge, 3-foot copper cable with ring terminals crimped on both ends, built for connecting battery terminals, bus bars, or lugs in an ESS or DC power setup.
A 4 AWG conductor with ring terminals on both ends is a common building block in DC battery wiring — used for jumpering cells, connecting to bus bars, or linking a battery terminal to a disconnect or lug. Ring terminals give you a bolted, mechanical connection that resists loosening better than a bare wire under a lug screw, provided the ring size matches your stud. 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.
- Wire Gauge: 4 AWG
- Length: 3 feet
- Terminal Configuration: Ring terminal on both ends
- SKU: CBL078
- Does NOT include: Terminal lug size is not specified in manufacturer data — verify ring hole diameter fits your stud/bolt before purchase.
- NOT verified for: Voltage rating and continuous ampacity are not listed in source data — do not assume this cable is rated for a specific system voltage or current draw without confirming separately.
Ring terminal connections are a common point of resistance heating when the bolt isn't torqued correctly — too loose and you get arcing and voltage drop under load; too tight and you can crack the lug or deform the ring. Under-torqued ring terminals are a frequent root cause of thermal runaway events and nuisance inverter fault codes in DC battery banks, because resistance at the joint generates heat that the BMS or inverter reads as a fault. Verify each ring terminal connection with a digital torque wrench set to the terminal manufacturer's spec, not "hand tight." Cross-check your torque value against the terminal manufacturer's data sheet or NEC guidance on lug torque specs before energizing the circuit.
- Copper conductor construction for DC battery and bus bar wiring applications
- Ring terminals pre-installed on both ends — no separate crimping required for standard installs
- 3-foot length suited for short jumper runs between terminals, bus bars, or lugs
- 4 AWG gauge sized for moderate-current DC connections; confirm against your load with NEC ampacity charts
| Spec | Value | Unit |
|---|---|---|
| Wire Gauge | 4 | AWG |
| Length | 3 | ft |
| Terminal Type (Both Ends) | Ring | — |
| SKU | CBL078 | — |
Note: See "Resources (System Manuals and Warranty)" Tab above for full specifications.
- Fits: Any battery terminal, bus bar, or lug accepting a ring terminal connection matching this cable's ring size, on 4 AWG-rated hardware.
- Fits: General DC wiring jumpers where a 4 AWG ring-to-ring cable of 3-foot length is the correct fit for the run.
- Does NOT fit: Terminal posts or bus bar studs sized differently than the supplied ring terminal diameter — this is not listed in source data, so confirm physically before installing.
- Does NOT fit: Applications requiring a documented voltage or ampacity rating higher than what a 4 AWG conductor supports under NEC charts — this cable's ampacity and voltage ratings are not specified by the manufacturer.
| Compliance / Environment | Value |
|---|---|
| UL Listing | [NEEDS VERIFICATION] |
| NEC Ampacity Reference | [NEEDS VERIFICATION] — size per NEC 4 AWG copper ampacity tables and your installation conditions |
| IP Rating | [NEEDS VERIFICATION] |
FAQ
What gauge is this cable?
This cable is 4 AWG, 3 feet long, with a ring terminal crimped on each end.
What size are the ring terminals?
Ring terminal lug size is [NEEDS VERIFICATION]. Confirm hole diameter against your terminal post or bus bar bolt size before ordering.
Is this cable rated for 48V systems?
Voltage rating is [NEEDS VERIFICATION]. The manufacturer data provided does not list a voltage rating for this cable.
What is the maximum current this cable can carry?
Ampacity limit is [NEEDS VERIFICATION]. Size your continuous load using NEC 4 AWG copper ampacity charts and your installation's temperature derating, not assumption.
Will this fit any battery or inverter brand?
It fits any terminal, bus bar, or lug that accepts a ring terminal matching this cable's ring size and 4 AWG conductor. It does not fit posts requiring a different ring diameter or gauge.
Warranty & Registration
Manufacturer warranty terms for this cable are [NEEDS VERIFICATION]. Refer to the "Resources (System Manuals and Warranty)" Tab above on this page for the manufacturer's warranty documentation, or ask us before you order if you need confirmation first.
