Jackery, home backup power station

Jackery HomePower 3600 Pro Max

Also written as 3600 Pro Max, Jackery Pro Max

A 3.6 kWh home backup battery with a 240 V outlet, a sub-10 ms switchover and a UL 9540 listing, expandable to 21.5 kWh.

Not yet available

Best for

Backing up a few house circuits, including one 240 V load such as a well pump, through a transfer switch.

Photo pending: we only show images we own or are licensed to use.

Strengths

3,584 Wh LFP, 6,000 cycles (Jackery).
UL 9540 certification named; 5VA fire-rated casing; emergency power-off button (Jackery).
Expandable to 21.5 kWh with 5 batteries, 43 kWh with two units in parallel (Jackery).
Switches over in under 10 ms; under 30 dB in Quiet Mode (Jackery).

Limitations

Jackery says it runs 240 V appliances from a 120 V outlet with no electrician, but does not explain how. Wiring a transfer switch into your panel is electrical work; check your county's permit rules (our caution).
Weight, dimensions and solar input are not on the product page.
The 5-year warranty is 3 years plus a 2-year extension, only when bought at jackery.com.

What it does not do

Back up house circuits on its own: automatic backup needs a manual, automatic or smart transfer switch (Jackery footnote).
Deliver 2,000 W at 120 V and 4,000 W at 240 V at the same time from one unit; Jackery lists them as separate ratings.
Go on a plane or in a car trunk easily: Jackery does not publish its weight.

Specifications

From the cited source on 2026-11-10. "Not verified" means no source we checked published it.

Capacity	3,584 Wh LFP^[1]
Continuous output	2,000 W at 120 V; 4,000 W at 240 V (one unit)^[1]
Outlets	NEMA 14-50R and NEMA 5-20R among others^[1]
Expansion	Up to 21.5 kWh (5 batteries); 43 kWh with two units^[1]
Switchover	Under 10 ms^[1]
Cycle life	6,000 cycles^[1]
Listing	UL 9540 (Jackery)^[1]
Noise	Under 30 dB in Quiet Mode at 1 m^[1]
Warranty	3 years, plus 2 at jackery.com^[1]
Solar input	Not verified
Weight	Not verified

Power and travel notes

Rated capacity: 3584 Wh. Over 160 Wh: forbidden on passenger aircraft per FAA. Shipping by carrier follows separate DOT and carrier rules.

Real runtime is less than capacity divided by load: conversion losses, battery reserve and temperature all cut into it. Size a battery for your fridge.

Before you buy

A battery that powers house circuits must go through a transfer switch so it can never feed the grid. Follow the maker's instructions and your local code.

Sources

Jackery Solar Generator HomePower 3600 Pro Max, Jackery (manufacturer), read 2026-11-10. 3,584 Wh LFP, 6,000 cycles (16 years at one cycle a day); single unit 2,000 W continuous at 120 V, 4 kW at 240 V listed, starting current up to 33 A; parallel 4,000 W; expandable to 21.5 kWh (one unit plus 5 batteries), 43 kWh in parallel; outputs include NEMA 14-50R and NEMA 5-20R; sub-10 ms UPS switch; UL 9540 certification and 5VA fireproofing named; EPO stop; under 30 dB in Quiet Mode at 1 m; 3-year warranty plus 2-year extension only at jackery.com. Automatic house backup needs a manual, automatic or smart transfer switch (footnote 1). Page also says it runs 240 V appliances from a 120 V outlet with no electrician; the mechanism is not explained. Weight, dimensions and solar input not published on the page.

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