Grizzl-E Duo Connect review

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A second EV turns a solved problem back into a chore: one cable, two cars, and somebody moving a plug at midnight. The Grizzl-E Duo Connect is United Chargers' answer -- the Connect generation's hardware with two cables hanging off it, so both cars stay plugged in. We have not tested one. Everything below is from the maker's own product record, which is unusually specific about the trade involved.

The Duo Connect in full

The number that decides it: 20 amps each

United Chargers does not bury this, and neither will we. The Duo Connect draws 40 A from one circuit, and when two vehicles charge together the maker lists 20 A each. It is one charger with two cables, not two chargers in a box.

Read the third line before dismissing the second. Two cars each taking 48 kWh overnight is far more than most households drive in a day, and the arithmetic only breaks down if both cars arrive nearly empty on the same evening and both have to leave full. How long charging takes covers the general case.

The four ways to charge two EVs

The Duo Connect's real rival is the first row, not the third. Most two-EV households already own one charger and move the cable. What you are buying here is the end of that, for a price that is well above a single Classic Connect and well below a second circuit.

Connector pairs, which matter more than they sound

United Chargers sells the Duo Connect with two J1772 cables, two NACS cables, or one of each. The mixed pair is the interesting one: a J1772 car and a Tesla can both plug in natively, with no adapter dangling off either cable. If your household is mid-transition -- one older EV, one NACS car -- that combination is hard to find elsewhere. Plug types covers which is which, and adapters covers the alternative.

Cables, case and weather

• Two 25 ft cables is the longest pair on this site. Two bays and two charge ports on opposite sides of each car is exactly the case that needs it. Cable length.
• The enclosure is the familiar Grizzl-E size, 10.25 by 6.25 by 3.75 inches, so it does not need a wall of its own -- though at 26.46 lb with cables, the mounting has to be solid.
• UL Type 4, rated -30 C to +50 C (-22 F to 122 F), so an outside wall is fair game. Outdoor installation.
• An indicator light per connector, which matters when two cars are plugged in and only one is charging.

The app

Like the Classic Connect, this is a Grizzl-E with software in it: 2.4 GHz Wi-Fi, the Grizzl-E Connect app, schedules, charging statistics and remote control, and United Chargers lists participation in utility demand-response programs. On a time-of-use rate, being able to schedule both cars from one place is worth more here than on a single-car charger. Charging at night.

If you specifically want a Grizzl-E because it has no software, this is the wrong end of the range -- the Classic still has no app at all.

Who should buy it

• Two EVs that both park at home overnight, on one 50 A circuit.
• A household with a J1772 car and a NACS car, which the mixed cable pair serves directly.
• A panel with no room for a second EV circuit, where the alternative is a panel upgrade.
• Two parking bays that a single 25 ft cable cannot cover.

Who should skip it

• One-car households. The Classic Connect is the same generation with one cable, for far less.
• Cars that charge on different nights. If the second EV is a weekend car, one charger and an occasional cable swap costs nothing.
• Anyone who needs 48 A. The Duo Connect is a 40 A plug-in unit; the 48-amp tier is hardwired.
• A driver who arrives near-empty every night with a big battery. 20 A each is 4.8 kW, and that is the wrong charger for that pattern.

The Duo Connect

Live price from Amazon. Specifications are United Chargers' own, including the 20 A each figure.

1. Two EVs on one circuit

Grizzl-E Duo Connect

United Chargers · J1772 · 40 A / 9.6 kW · 25 ft cable

Two 25 ft cables on one 40 A plug-in charger, so two EVs can be plugged in at once. The honest catch is in the maker's own spec: 40 A total, and 20 A each when both cars charge together.

What is good

• +Two cars can stay plugged in on one 50 A circuit, with no swapping cables at midnight
• +Two 25 ft cables, the longest on this site, so both bays are reachable
• +Connector pairs to suit a mixed household: J1772/J1772, J1772/NACS or NACS/NACS
• +UL/cUL listed with a published file number, and a UL Type 4 indoor/outdoor rating
• +Wi-Fi scheduling and statistics in the Grizzl-E Connect app, with an indicator light per connector

What is not

• −40 A is the total, not per car: United Chargers lists 20 A each when two vehicles charge at once
• −Plug-in only at 40 A, so there is no 48 A hardwired version
• −Costs far more than one Classic Connect, which gives a single car the full 40 A
• −Two-car households that charge at different times gain nothing over a single charger
• −2.4 GHz Wi-Fi only, like the rest of the Connect range

Published specifications for the Grizzl-E Duo Connect

Maximum output	40 A total (the maker lists 10 kW)
With two cars charging	20 A each, per United Chargers
Adjustable	40 A down to 16 A
Connectors	Two: J1772/J1772, J1772/NACS or NACS/NACS
Cables	Two, 25 ft (7.6 m) each
Plug	NEMA 14-50
Enclosure rating	UL Type 4, indoor and outdoor
Operating temperature	-30 C to +50 C (-22 F to 122 F)
Enclosure size	10.25 x 6.25 x 3.75 in
Weight	26.46 lb (12 kg)
Connectivity	Wi-Fi (2.4 GHz) and the Grizzl-E Connect app
Certification	UL/cUL, file E510712
Warranty	3 years, or 5 years chosen at purchase

Skip this if: Skip it if only one car charges at a time, or if either car needs the full 40 A overnight. One Classic Connect costs far less and gives that car everything the circuit has.

Specifications above are the manufacturer’s published figures. Source: United Chargers. We have not tested this unit — see how we pick.

$899.99 · View on Amazon#ad how we are funded · price as of September 25, 2026

Alternatives worth pricing

Before buying, get two other quotes: a Classic Connect plus the cost of living with one cable, and a second dedicated circuit for a second charger. If your panel has room, two ordinary chargers on two circuits give both cars full speed and cost less than people expect -- load calculation tells you whether that is even on the table.