EG4 6000XP + Indoor WallMount Battery Off-Grid System: Parts List

The parts in the EG4 6000XP off-grid inverter and Indoor WallMount 280Ah battery systems shown on the channel, and the videos showing the build.

Last reviewed 2026-10-09.

This page describes our own experience. It is not guidance, instructions or advice, and it is not a design for your installation. Batteries and mains electricity can cause serious injury, fire and death. Check every part against the manufacturer's instructions and your local electrical code, and use a licensed electrician where the work or permits require one. Read the full notice below before relying on anything here.

Parts

Role	Part	Qty	Why this part	Where to buy
Inverter / charger / charge controller	EG4 6000XP Off-Grid Inverter	1	All-in-one inverter, charger and solar charge controller, 6,000 W split-phase.	View on Signature Solar → Affiliate link — we may earn a commission if you purchase through this link, at no extra cost to you.
Battery	EG4 WallMount Indoor Battery 280Ah	1	A 48 V, 280Ah (14.3 kWh) wall-mount battery made for indoor use, paired with the 6000XP.	View on Signature Solar → Affiliate link — we may earn a commission if you purchase through this link, at no extra cost to you.
Conduit box for the battery wiring (the store's current "Indoor Buildable" model)	EG4 Indoor Buildable Conduit Box	1	Encloses the battery wiring; made for the indoor WallMount battery and fits the 6000XP.	View on Signature Solar → Affiliate link — we may earn a commission if you purchase through this link, at no extra cost to you.
Battery paralleling cables	EG4 PowerPro Battery Paralleling Cables	2	The kit includes the positive and negative cables and an Ethernet communications cable for connecting batteries in parallel.	This listing is no longer available at Signature Solar. The store redirects to the 280/314Ah kit; a separate 100Ah kit exists. See the current model: EG4 All Weather Battery Paralleling Cable → Affiliate link — we may earn a commission if you purchase through this link, at no extra cost to you.
2/0 AWG battery lugs	QuickCable MagnaLug 2/0 AWG Battery Lug	2	2/0 AWG lugs terminate the battery cables; they are not included in the battery kit.	View on Signature Solar → Affiliate link — we may earn a commission if you purchase through this link, at no extra cost to you.

Manufacturer's specifications

EG4 6000XP: ingress protection rating IP20; operating temperature range 0 to 45 °C (32 to 113 °F). (manufacturer's specification)

Wiring and protection

The load center fed by the 6000XP's 240 V output uses a two-pole 50 A breaker. (video)

What we measured

Idle consumption running from the battery was about 50 W. Conditions: Loads off, battery mostly charged, room temperature. (video)

Firmware and version records

EG4 6000XP Off-Grid Inverter: no firmware version recorded (The version was not noted at the time.)
EG4 WallMount Indoor Battery 280Ah: no firmware version recorded (The version was not noted at the time.)

What we did not test or check

Surge and motor-startup loads were not tested.
Operation in heat or cold extremes was not tested.
Voltage drop in the DC battery cables was not calculated or measured.
The sizing and placement of the DC and AC fuses and breakers were not checked against the manufacturers' requirements or the electrical code.
Compatibility between the parts' firmware versions was not checked.
Generator and grid-tie operation were not tested.

Videos that show this build

EG4 6000XP off grid Inverter long term Review | 8000W PV | 480V VOC | 48V 120/240V Split Phase – 6000XP long-term review
EG4-WallMount Indoor Battery Review | 48V 280Ah | 14.3kWh | Indoor | Heated UL1973, UL9540A – Indoor WallMount battery review
EG4 PowerPro & Indoor Wallmount Battery Parallel Kit | DEGSON connector – Parallel kit and connectors
How to setup EG4 6000XP Indoor Wallmount battery and conduit box kit off grid system – Wiring the battery and conduit box kit
#eg4 indoor wall mount battery inception and 6000xp charging #offgrid #lifepo4battery – Battery and 6000XP charging
Level 2 Charging Tesla off-grid with solar | EG4 6000xp & Indoor Wallmount batteries offgrid – Charging a Tesla off-grid from this system

Important notice: our experience, not instructions

This page records one system that TGBATG built and used, on the date shown and with the parts and versions listed. It describes what we did, not what you should do. It is our experience only. It is not instructions, directions, a design, a plan, an inspection, a recommendation that you copy it, or engineering, electrical, safety or legal advice, and it creates no professional relationship between you and us.

Electrical systems differ in their loads, climate, wiring, local code and the exact parts and firmware used, and manufacturers change their products, specifications and instructions without notice. Parts listed here may be discontinued, replaced or revised. Your results will differ from ours.

Batteries and mains-voltage electricity can cause serious injury, electric shock, fire and death. Read and follow the manufacturers' instructions and warnings for every part, follow your local electrical code, obtain any permits that apply, and have the work done or inspected by a licensed electrician where required. Do not rely on this page to decide how to size, protect, wire, ground or configure any system.

We list above some things we did not test or check. Even for what we did test, we may have made mistakes or left things out. We cannot guarantee that this page is accurate, complete or current, or that it is suitable for your use. It is provided as is, without warranties of any kind. You use it at your own risk and, to the fullest extent the law allows, TGBATG and its owner are not responsible for any loss, damage or injury that results from using it.

Some links on this page are affiliate links: if you buy through them TGBATG may earn a commission at no extra cost to you. We list the parts we used whether or not we earn a commission on them.

If you find an error, please tell us at contactus@tgbatg.com.