EG4 WallMount Buyer’s Guide

Indoor vs All-Weather

Indoor WallMount packs are built for garage or mechanical-room installs. All-Weather / PowerPro-style outdoor packs add weather sealing for exterior walls — useful when indoor space is tight or code prefers outdoor ESS. Match the enclosure to your climate and AHJ rules.

280Ah vs 314Ah capacity

Both families sit near 48V. The 314Ah class stores more usable kWh per wall unit, so fewer packs can hit a multi-day backup target. The 280Ah / 14.3 kWh class is often cheaper per unit and still stacks for larger banks.

Inverter pairing

EG4 hybrids (18kPV, FlexBOSS18/21) are designed around WallMount cable sets and mounting brackets. Always confirm closed-loop BMS communication and UL9540 ESS listings for the exact battery + inverter combo before purchase.

Read the manuals first

Download the WallMount and inverter manuals from our Guides hub. Check clearances, conduit-box options, and parallel wiring before you order hardware.

Related manuals & docs

Manufacturer PDFs that pair with this topic.

manualEG4

EG4 WallMount All-Weather — User Manual

Full install, paralleling, conduit box, and BMS setup for outdoor WallMount packs.

Open

quick startEG4

EG4 WallMount All-Weather — Quick Start

Fast mounting overview with 18kPV / FlexBOSS bracket notes.

Open

manualEG4

EG4 18kPV Hybrid Inverter — User Manual