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Grizzl-E Classic

A cast-aluminum box with physical switches, no app, no account and no firmware. In a category racing to add software, that is a feature.

By Sawyer V. · Published September 8, 2026

An electric vehicle charging outdoors beside a house
Illustrative photo of outdoor charging, not the Grizzl-E unit.

How this page is funded: we earn a commission if you buy through our Amazon links, at no extra cost to you. It does not change what we recommend, and we say plainly when the honest answer is to buy nothing. Full disclosure.

The short version: buy this if you want a charger that will still work in ten years without an app store, an account or a company still being in business. It is 40 amps, it is in a cast-aluminum NEMA 4 / IP67 case, its amperage is set with physical switches, and it is UL certified.

The case for a charger with no software

Every connected device you own has a lifecycle problem: the app gets rewritten, the account system migrates, the cloud service is retired, the company is acquired. Most of the time that is a nuisance. On a device bolted to your house and wired into a 50-amp circuit, it is worth thinking about before you buy.

The Grizzl-E has none of that surface area. Its amperage is set once, by hand, at installation. There is nothing to update and nothing to log into. If your car already schedules its own charging -- and most do -- you lose almost nothing.

What 40 amps means in practice

The arithmetic

40 A x 240 V = 9,600 W = 9.6 kW

At 3.5 mi/kWh: about 34 miles of range added per hour

Over a 10-hour night: about 340 miles

Required circuit: 40 x 1.25 = 50 A

It is meaningfully slower than a 48-amp unit on paper -- about six miles per hour of charging -- and almost never slower in a way you would notice. The 50-amp circuit it needs is also easier for a tight panel to accommodate than a 60-amp one, which occasionally makes it the *cheaper* installation as well as the cheaper charger.

1. Harsh weather and no app

Grizzl-E Classic

United Chargers · J1772 · 40 A / 9.6 kW · 24 ft cable

A cast-aluminum box with no app, no account and no firmware to update. If you want a charger that behaves like an appliance, this is the one.

What is good

  • Cast aluminum NEMA 4 / IP67 enclosure, built for outdoor mounting
  • No app, no account, no network dependency
  • Amperage is set with physical switches, not software
  • Protections for over-current, over-voltage, ground fault and over-temperature

What is not

  • 40 A ceiling, slower than the 48 A units if your panel can take more
  • No scheduling, so off-peak charging has to be set in the car
  • The cold-flexible 24 ft cable is only on the Extreme Edition
Published specifications for the Grizzl-E Classic
Maximum output40 A / 9.6 kW at 240 V
Adjustable16, 24, 32 or 40 A
ConnectorSAE J1772
Cable24 ft on the Extreme Edition
EnclosureCast aluminum, NEMA 4 / IP67
CertificationUL certified
Warranty3 years

Skip this if: Skip it if you want scheduled charging or energy tracking in an app. The Classic deliberately has neither.

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

Check price on Amazon#ad how we are funded

Built for weather

The cast-aluminum enclosure with a published NEMA 4 / IP67 rating is a genuine differentiator against plastic-bodied competitors, and it is why this unit shows up in our outdoor roundup and our cold-weather roundup. The Extreme Edition's cold-flexible 24-foot cable is sold specifically for climates where ordinary cable goes rigid.

Who should not buy it

  • You want energy monitoring. There is no app, so there is no reporting. If you want to see what charging costs, buy the Emporia.
  • Your car cannot schedule its own charging and you are on a time-of-use rate. You would be giving up the savings.
  • You want 48 amps. This unit tops out at 40.
  • You want load management for a tight panel or two EVs. That needs a connected unit -- see load management.

FAQ

Questions people actually ask

Does the Grizzl-E Classic have an app?
No. Amperage is set with physical switches at installation. That is a deliberate design choice, not an omission.
Is the Grizzl-E good for outdoor installation?
Yes. It publishes a cast-aluminum NEMA 4 / IP67 enclosure, which is at the strong end of what home chargers offer.
How fast does the Grizzl-E charge?
At its 40 A maximum on 240 V it delivers 9.6 kW, roughly 34 miles of range per hour at 3.5 mi/kWh, or about 340 miles over a ten-hour night.
Is the Grizzl-E UL certified?
Yes, per the manufacturer's published specifications.

Sources

Where these numbers come from

  1. Grizzl-E Classic product specifications — United Chargers
  2. Review: the Grizzl-E, a tough 40-amp EV home charger built for the outdoors — InsideEVsIndependent published review of the build and enclosure.

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