HPP+ Solar Wall Plate Kit: Mounting and Cable Routing

By Portable Power Stations, Solar Generators | Published: 2026-11-05

Category: How-to Guides

A step-by-step guide to installing the HPP+ Solar Wall Plate Kit, routing solar cables safely, and connecting to your Yeti PRO 4000 without common mistakes.

Quick answer

Mount the HPP+ Solar Wall Plate Kit on a wall near your Yeti PRO 4000, route the 10AWG power wires through the wall plate, and connect them to the Yeti PRO 4000. Use the included 18AWG data wires for communication, and keep all connections dry and secure.

Why the HPP+ Wall Plate Kit matters for your setup

The HPP+ Solar Wall Plate Kit lets you connect ground-deployed solar panels to your Yeti PRO 4000 inside your home without running loose cables through a window or door. It provides a clean, permanent entry point that keeps your interior tidy and reduces tripping hazards.

This kit is designed for use with the Goal Zero Yeti PRO 4000 and Haven 10. It includes a wall plate, 10AWG power wires rated for 40A, and 18AWG data wires. The wall plate measures 8.25 inches long and works with HPP+ extension cables, so you can extend your solar run if needed.

Planning your cable route

Before you drill any holes, plan the path from your solar panels to the wall plate and then to the Yeti PRO 4000. Keep the run as short as practical to minimize voltage drop, and avoid routing cables near sharp edges or areas with foot traffic.

The wall plate is designed for indoor use, so choose an interior wall that is protected from weather. If you need to go through an exterior wall, seal the penetration properly to prevent water intrusion. Remember that the kit does not include mounting hardware or a hole saw, so gather those tools first.

Step-by-step installation

Choose and mark the wall plate location: Select an interior wall near your Yeti PRO 4000 and within reach of your solar panel cables. Mark the mounting hole locations using the wall plate as a template, ensuring the plate is level. Common mistake: mounting too high or too low, which can strain the cable connections. Check that the location allows the 34-inch cord to reach your Yeti PRO 4000 without tension.
Drill the cable pass-through hole: Drill a hole large enough for the 10AWG power wires and 18AWG data wires to pass through comfortably. Use a hole saw or drill bit appropriate for your wall material. Common mistake: drilling a hole that is too small, which can damage the wire insulation during pulling. Deburr the hole edges to prevent chafing.
Mount the wall plate: Secure the wall plate to the wall using appropriate screws and anchors for your wall type (not included). Make sure the plate sits flush and is firmly attached. Common mistake: over-tightening screws and cracking the plate, or using drywall anchors in studs without pre-drilling. Verify the plate cannot wiggle; a loose plate can stress the cables.
Route the power and data wires: Feed the 10AWG power wires and 18AWG data wires through the wall plate opening from the outside. Leave enough slack on both ends for connections. Common mistake: pulling the wires too tight, which can disconnect them under strain. Label the power and data wires if you are running multiple lines.
Connect to the Yeti PRO 4000: Connect the power wires from the wall plate to the Yeti PRO 4000's solar input, observing correct polarity (red to positive, black to negative). Connect the data wires to the corresponding data ports. Common mistake: reversing polarity, which can damage the unit. Double-check polarity before plugging in; consult your Yeti PRO 4000 manual for port locations.
Connect solar panels and test: Connect your ground-deployed solar panels to the exterior side of the wall plate using HPP+ extension cables as needed. Verify that the Yeti PRO 4000 recognizes the solar input and begins charging. Common mistake: forgetting to check that all connections are fully seated. If charging does not start, recheck polarity and data wire connections.
Seal and secure the installation: Apply weatherproof sealant around the exterior hole if the wall plate penetrates an exterior wall. Use cable clips or conduit to secure wires along the route. Common mistake: leaving the hole unsealed, allowing water or pests to enter. Inspect the seal annually and reapply if cracked.

Product facts

HPP+ Solar Wall Plate Kit: The kit includes 10AWG power wires rated for 40A and 18AWG data wires, and is compatible with HPP+ extension cables. The 40A rating supports high-current solar arrays, while the data wires enable communication with your Yeti PRO 4000; the extension cable compatibility lets you customize your cable run.
HPP+ Solar Wall Plate Kit