EcoFlow DELTA Pro 3 vs Jackery Explorer 5000 Plus: which home backup battery should you buy?

Specs side by side

Specs as each maker states them.

The key differences at a glance

EcoFlow lists 4,096 Wh and 4,000 W of AC output, or 6,000 W with X-Boost. Jackery lists 5,040 Wh and 7,200 W, with a 14,400 W surge. Both use LFP cells, both give 120V and 240V, and both advertise a 5-year warranty. EcoFlow rates its battery at 80% or more after 4,000 cycles; Jackery's rating is 70% or more after 4,000 cycles. Both quote about 11 years of use: Jackery's data note calls it the cells' theoretical service life based on 4,000 cycles, and EcoFlow's footnote says it comes from laboratory conditions at 0.5C and 77°F. Our home backup battery guide puts both in context.

Output, 240V and the headroom modes

EcoFlow's manual says its HV and LV AC output buttons cannot be used at the same time; turning one on turns the other off. It lists a surge output of 8,000 W. Jackery lists its four 120V outlets in two pairs, each pair rated at 3,600 W, and a 120V/240V outlet rated up to 7,200 W.

Beyond its 4,000 W rating, EcoFlow's X-Boost reaches 6,000 W. The manual says it suits heating devices, does not support devices with voltage protection, and is unavailable while the unit charges from an AC source. Jackery's 7,200 W is its rated total, and its manual says the maximum output falls to 3,600 W when the ambient temperature is between 5°F and 14°F.

Charging and solar

Jackery's blog lists wall charging at 1,800 W and 3.5 hours. Through its Smart Transfer Switch it lists 1.7 hours, and it gives the same 1.7 hours for the high-voltage solar input at 4,000 W, which accepts 135V to 450V. A footnote on the product page says the 1.7 hours was reached through the Smart Transfer Switch. The two low-voltage ports take panels directly, and Jackery says two SolarSaga 500 X panels recharge the unit in 6.5 hours. Jackery's FAQ says third-party panels and fuel-powered generators can connect if they meet its input standards, and recommends official accessories to keep warranty coverage. See our solar generator picks for panel pairings.

EcoFlow lists 2,600 W of solar across two ports: up to 1,600 W on the high-voltage port (30V to 150V) and up to 1,000 W on the low-voltage port (11V to 60V). It lists 0 to 80% in 50 minutes and up to 7,000 W of charging with multi-charge combinations, so check which inputs the 50-minute figure assumes. On the US model, EcoFlow's FAQ says the grid port supports 120V charging at 2,000 W, and a 240V EV charger through its adapter raises that to 4,000 W. For generators, the manual lists three routes: EcoFlow's Smart Generator on the extra battery port, a generator on the AC input socket, or a split-phase generator port on the AC POWER IN / OUT port with EcoFlow's adapter.

Expansion and connecting it to your home

A single DELTA Pro 3 takes up to two extra batteries of 4,096 Wh each, for up to 12 kWh, and each extra battery is listed at 33 kg. EcoFlow's range runs from 4 to 48 kWh, but its footnote puts the top figure on a three-unit setup with three extra batteries, three Smart Generator 4000 units and a Smart Home Panel 2. That panel takes up to three DELTA Pro 3 units, with a 20 ms switch-over and app control of up to 12 circuits. EcoFlow also lists an inlet box that uses the built-in L14-30R socket.

Jackery's Explorer takes up to five 5,040 Wh battery packs, which Jackery totals at 30.24 kWh on one unit. Two units and ten packs reach 60.48 kWh, with the two units linked through the Smart Transfer Switch. Each pack is listed at 81.57 lb, and Jackery asks you to check the maximum capacity allowed where you live. Jackery lists the Smart Transfer Switch for up to 12 circuits at 120V or 6 at 240V, with a switch time of 20 ms or less. It also sells a separate 240V 50A manual transfer switch for the 5000 Plus. Jackery says it does not install the Smart Transfer Switch itself. EcoFlow's manual says a transfer switch is essential to isolate backup power from the grid, and not to connect a power station to a building's wiring without a properly installed isolation switch. Read our generator safety guide on back-feeding before you wire anything.

Weight, noise, UPS and warranty

The EcoFlow is 51.5 kg (113.54 lb) and 16.16 by 13.43 by 27.28 in. The Jackery is 134.5 lb (61 kg) and 16.5 by 15.5 by 25 in. Both have wheels and an extending handle. EcoFlow quotes noise as low as 30 dB and gives no full-load figure on the pages we read; Jackery gives 30 dB in Quiet Mode and 51.7 dB at full load, measured at 1 meter. Jackery's manual says the unit is for indoor use only. EcoFlow rates the main unit IP20 and the battery pack IP65, and says the unit suits well-ventilated indoor or sheltered outdoor spots.

EcoFlow lists a standby UPS with a 10 ms transfer time, and its manual adds that the unit needs more grid input than the connected loads draw to work as a UPS. Jackery's manual makes a backup UPS that switches within 20 ms the default, and limits its 0 ms online UPS to the NEMA 5-20 outlets, up to 3,600 W. EcoFlow's 5 years is 3 standard plus 2 after you register in the EcoFlow app, and its manual voids the warranty if the unit is left uncharged or unused for more than 6 months. Jackery's manual gives 5 years standard. It limits the warranty to purchases from the official Jackery site, Jackery-branded third-party platforms or local authorized dealers. It covers the battery cells only if you fully charge the unit within seven days of buying it and at least once every 6 months. Both makers advise against relying on their units for life-support medical equipment.

Which to choose

Choose the EcoFlow DELTA Pro 3 if you want the lighter unit, the stricter cycle rating, a 10 ms standby UPS and the Smart Home Panel 2 route, and 4,000 W of output is enough. Choose the Jackery Explorer 5000 Plus if you want the larger battery, 7,200 W of output, up to 4,000 W of solar input and more room to expand, and can manage the extra weight and an indoor-only spot. Plan either one before the next outage; our power outage checklist is a good place to start.

Common questions

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