Hoeine MC4 to 8mm DC Adapter Cable — 40ft, 12AWG+14AWG Heavy-Gauge, Waterproof

Hoeine 40FT MC4 to DC 8mm adapter cable converts standard MC4 solar outputs to an 8mm DC plug, letting you safely connect panels to Jackery and other portable power stations up to 20A.

Need a durable, weather-resistant extension to link your rooftop or portable solar panels to a power station placed in a shaded area? This 40-foot Hoeine adapter cable combines 12AWG and 14AWG conductors with sealed MC4 connectors and an 8mm DC output to reduce voltage drop and keep your panels positioned for maximum sunlight while the generator stays protected indoors or in the shade.

How does this cable improve charging from panels to a Jackery unit?

The Hoeine adapter minimizes losses with heavy-gauge copper conductors and a long run length that lets you optimize panel placement. Sealed MC4 terminals keep moisture out and the 8mm DC plug matches many popular power stations for a secure, low-resistance connection.

• 12AWG + 14AWG tinned copper for reduced voltage drop and heat resistance
• 40-foot length for flexible panel-to-station placement
• MC4 waterproof connectors to preserve contact quality
• 8mm DC male plug compatible with Jackery/BLUETTI/Goal Zero/Anker inputs

Is the cable durable enough for outdoor, all-season use?

Yes — the cable is built with a PVC jacket and tinned copper conductors that resist oxidation, UV exposure, and moisture. It’s rated for typical solar temperatures and tested for DC voltages, making it suitable for seasonal and longer-term outdoor setups when connectors are properly mated.

• PVC jacket resists cracking and sun damage
• Tinned copper conductors reduce corrosion and improve lifespan
• Operating range roughly -15°C to 80°C (5℉–176℉)
• Sealed MC4 ends prevent water ingress during use

Which power stations and solar panels will this adapter work with?

The Hoeine cable was designed to bridge common MC4-equipped solar panels to many portable power stations that accept an 8mm DC input. It’s particularly convenient for Jackery Explorer models and broadly compatible with BLUETTI, Goal Zero Yeti, and some Anker stations, provided the station accepts an 8mm DC male plug and the panel voltage/current are within the station’s specs.

• Direct-fit with Jackery Explorer series (160–1000 models where 8mm input is supported)
• Compatible with BLUETTI and Goal Zero Yeti units using 8mm inputs
• Works with standard MC4-equipped solar panels and arrays
• Rated current ≤20A — confirm power station max input before use

How do I use and maintain the adapter for best performance?

Plug the MC4 connectors to your solar panel’s MC4 outputs, run the 40-foot cable to the shaded or protected power station area, and insert the 8mm DC male plug into the station’s input. Keep connectors clean, avoid sharp kinks in the cable, and inspect seals seasonally to ensure consistent performance.

• Connect MC4 ends firmly until they click for a weatherproof seal
• Avoid tight bends; coil excess cable without kinking
• Inspect for dirt or corrosion and wipe clean if needed
• Confirm panel voltage/current compatibility before connecting

Who is this for? If you use portable or roof-mounted MC4 solar panels with a Jackery, BLUETTI, Goal Zero, or compatible power station and need a reliable way to position the generator out of the sun, the Hoeine 40FT MC4 to DC 8mm adapter cable provides a long, low-loss, weather-resistant link. It’s aimed at outdoor enthusiasts, RV owners, off-grid hobbyists, and anyone wanting cleaner, safer placement of their power station without sacrificing solar input efficiency.