Needs manual setup

Schneider Electric SW 4048 120/240 + EG4 WallMount Indoor 280Ah

Checked automatically against spec sheets. Not yet confirmed in a real install. Last checked 2026-10-12. We don't track firmware versions.

What you'll set up yourself

  1. Ask EG4 whether this battery can run without communication. Their documents don't say.
  2. Enter the battery's charge settings on the inverter by hand, in the battery settings described in the inverter's manual.
    • Max charge current: no more than 140 A per battery, from the battery's spec sheet.
    • Charge voltage, float voltage, and low-voltage cutoff: from the EG4 WallMount Indoor 280Ah manual.

Published limits, side by side

Spec Schneider Electric SW 4048 120/240 EG4 WallMount Indoor 280Ah
Voltage 48 V accepts 40–68 V 51.2 V
Current Max battery current 110 A Max charge 140 A Max output 140 A Peak output 200 A
Communication Open loop (no comms) EG4 hybrid closed loopEG4 EHV closed loopGrowatt SPF/SPE closed loop
Cable connection Stud size 3/8 in Terminal Not published

Values come from each maker's documents. "Not published" means the maker doesn't state it.

Confirm with the makers before you buy

This result checks two things: the battery's voltage suits the inverter, and the inverter maker lists this battery for closed-loop communication (the battery tells the inverter how to charge it). It doesn't check current limits, charge settings, firmware, cable sizes, or safe installation. Confirm those with both makers before you buy.

Sources

This result comes from the documents below. We haven't yet found an outside source that confirms it, such as a forum report or a video of a real install.

Where to buy

Schneider Electric SW 4048 120/240

EG4 WallMount Indoor 280Ah

Spot a mistake? Email errata@offgridstacks.com with this page's link.