Renogy Amphenol to 3/8 in Lug Adapter Cable

The Renogy Amphenol Adapter Cable connects Renogy devices with an Amphenol port to a battery bank or busbar fitted with 3/8 in ring lug terminals, using 10AWG tinned copper wire rated for 70A continuous current and 600V. Color-coded BAT+ and BAT- conductors reduce wiring errors during installation. The cable is sold as a pair and is available in a 5 ft or 10 ft length.

Locked In, Even Off-Road

The Amphenol connector uses an integrated locking mechanism that resists loosening from vibration and mechanical shock. For overlanding rigs, van builds, and trailer installations where road vibration is constant, a connection that stays seated without periodic retightening means one fewer failure point to monitor between trips.

Weatherproof from Connector to Lug

An IP67 protection rating means the cable assembly is sealed against dust ingress and can withstand temporary water immersion, which matters for engine-bay or underfloor battery runs where condensation, rain intrusion, or wash-down is possible. The tinned copper conductor resists corrosion over time, and the cable is rated to operate across a temperature range of -40°C to 105°C (-40°F to 221°F), covering cold-weather storage and high-heat engine-compartment environments.

Color-Coded for Accurate Polarity

The BAT+ and BAT- wires are color-coded throughout the cable length, so polarity is visually confirmed at both the Amphenol end and the ring lug end before any connection is made. This matters most during initial installation in tight spaces where a reversed connection could damage connected equipment.

Features

• Amphenol locking connector: integrated lock prevents loosening or deformation under vibration
• IP67 rated: sealed against dust and temporary water immersion
• 10AWG tinned copper wire: rated 70A continuous current, 600V
• Color-coded conductors: BAT+ and BAT- labeled for polarity confirmation
• Sold as a pair: one positive and one negative cable per package

Specifications

Who This Is For and Isn't

This cable is for builders connecting a Renogy device with an Amphenol output port to a battery bank or busbar that uses 3/8 in ring lug terminals, common in RV, van, trailer, and overlanding electrical systems where the Amphenol connector standard is already in use. The 5 ft length suits compact battery compartments; the 10 ft length accommodates longer runs between a charge controller or inverter and a remotely mounted battery.

This cable terminates only in 3/8 in (M8) ring lugs; installations requiring a different terminal size will need a different adapter. The 10AWG wire is rated to 70A; circuits requiring higher continuous current need a heavier gauge cable. An ANL fuse is not included and must be sourced separately.

Common Questions

What devices use the Amphenol connector this cable is designed for?

The Renogy Amphenol Adapter Cable is designed for Renogy devices that use the Amphenol 70A connector (specification C10-791435). The other end terminates in 3/8 in (M8) ring lugs for connection to a battery bank or busbar. Confirm that the Renogy device in your system uses this Amphenol port before ordering.

Does wire gauge affect how fast a battery charges?

Wire gauge does not change the charge rate on its own. The charge controller or charger determines the current output. A heavier gauge wire allows more current to flow with less resistance over longer distances; undersized wire builds up heat as resistance increases. This cable's 10AWG conductor is rated for 70A continuous current at the lengths offered.

Can the ring lug terminal be replaced if it is damaged?

The ring lug terminal on the Renogy Amphenol Adapter Cable is an M8 ring lug. If the terminal is damaged, a replacement terminal of the same M8 size can be crimped onto the wire. The Amphenol connector end uses the 70A Amphenol specification (C10-791435).

Is an ANL fuse included with this cable?

No. The Renogy Amphenol Adapter Cable is sold as a pair of cables (positive and negative). An ANL fuse is not included and must be purchased separately for installations that require one between the cable and the battery bank.