Plug & Range

Best EV Chargers with OCPP

OCPP is the open protocol that lets a charger answer to software its manufacturer did not write — the nearest thing to insurance against an app being switched off. Four home chargers here publish support for it.

By Stephen V.Last updated How we pick

The verdict first. Buy the Grizzl-E Ultimate 48A. It is the cheapest charger on this site whose manufacturer prints OCPP in its own technical specification table, and it is a charger we would recommend on the hardware alone — a cast-aluminum UL Type 4 case published to −22°F, 48 amps, a 25-foot cable. That makes it the budget pick here as well as the top one. If you want the deepest published standards list in this registry, the Leviton EV40P is the one that actually names a version, OCPP 1.6 — and it is the only pick here that does so in writing alongside a full list of UL standards.

OCPP stands for Open Charge Point Protocol. In one sentence: it is a published, vendor-neutral language for talking to a charging station, so a charger that speaks it can be driven by third-party software rather than only by its maker’s own app and cloud. In commercial charging that is routine — an operator will not buy hardware that locks them to one back end. At home it is rare, and most buyers never need it.

So why have a page about it? Because of the one scenario where it matters enormously: a charger whose app stops working. A home charger is a ten-year purchase, and the companies behind the apps are not all ten-year companies. When a maker switches off a cloud service, a non-OCPP smart charger usually keeps charging a car on a plain button press but loses its scheduling, its energy data and its remote control permanently. An OCPP charger can, at least in principle, be pointed at other software. That is the whole argument, and it is worth saying plainly that it is an argument about the future rather than a feature you will use next week.

A caution about how thin the published evidence is. We rank on what manufacturers put in writing, and on OCPP most of them put almost nothing: of the four chargers below, two publish the word with no version number, and none publishes a configuration procedure, a tested back end or a security profile. We have not connected any of these units to a third-party platform — we own none of them — so nothing here is a claim that a particular integration works. It is a record of who claims the capability and in how much detail.

How this is funded:we earn a commission if you buy through our links, at no extra cost to you. It never changes which product we recommend, and we’ll tell you when we’d skip one. Full disclosure.

Quick picks

Ranked on published specs, charging speed, electrical fit and value. Select a row to jump to the full write-up. We have not bench-tested these chargers — here is exactly what we do instead.

#ProductBest forPrice
1
Grizzl-E Ultimate 48A

Grizzl-E Ultimate 48A

The Grizzl-E for people who wanted more than 40 amps. It keeps the metal UL Type 4 body and the published -22F floor that make the Classic Connect our exposed-install pick, then raises the ceiling to 48A and adds an OCPP radio on top of the Grizzl-E Connect app. Two catches: it is hardwire-only, so there is no unplugging it and taking it with you, and the SKU Amazon carries today is the NACS cable version, so a J1772 car needs an adapter permanently in the chain.

Best overall, and the budget pick
$349.99 · View on Amazon

$479.9927% off

Price as of November 12, 2026. #ad How we’re funded

2
Leviton EV Series Smart Home Charger (EV40P)

Leviton EV Series Smart Home Charger (EV40P)

The one charger here from a brand your electrician already stocks. Forty amps, ENERGY STAR, a NEMA 3R shell, a 25-foot cable and a certification list longer than anything else in this registry — plus the My Leviton app, which is the same app that runs Leviton's load centers and switches. You pay a real premium for that, and what it buys is a company that will still be answering the phone in ten years.

Best published standards list
$499.85 · View on Amazon

Price as of November 12, 2026. #ad How we’re funded

3
Grizzl-E Ultimate 80A

Grizzl-E Ultimate 80A

Almost nobody should buy this, and the people who should have no real alternative. 80 amps is double what the fastest mainstream home charger delivers, and the overwhelming majority of EVs cannot accept a single amp of it — they cap out at 48. The exception is a small group of cars with an unusually large onboard charger, the 2022-2023 F-150 Lightning Extended Range chief among them, where this unit genuinely halves the overnight charge. It is the same Made-in-Canada aluminum body and the same published -22F floor as the rest of the Grizzl-E line, hardwire-only, and it needs a 100-amp circuit to reach its rating — which is a service upgrade in most houses, not a breaker swap.

Best for the biggest circuit
$599.99 · View on Amazon

$899.0033% off

Price as of November 12, 2026. #ad How we’re funded

4
Wallbox Pulsar Plus

Wallbox Pulsar Plus

The one to reach for when wall space is tight. It's among the smallest 48A chargers made, and Power Boost load balancing lets it share a circuit without tripping the main — which can save you a panel upgrade. It's a polished, premium unit, and the price says so.

Named OCPP, but no version
$689.99 · View on Amazon

$799.9914% off

Price as of November 12, 2026. #ad How we’re funded

The picks in full

#1Best overall, and the budget pick

Grizzl-E Ultimate 48A

The Grizzl-E for people who wanted more than 40 amps. It keeps the metal UL Type 4 body and the published -22F floor that make the Classic Connect our exposed-install pick, then raises the ceiling to 48A and adds an OCPP radio on top of the Grizzl-E Connect app. Two catches: it is hardwire-only, so there is no unplugging it and taking it with you, and the SKU Amazon carries today is the NACS cable version, so a J1772 car needs an adapter permanently in the chain.

Strengths

  • 48A / 11.5 kW in the same UL Type 4 metal case, published from -22F to 122F
  • Speaks OCPP as well as Grizzl-E's own app — rare on a home charger
  • 25 ft cable, and current can be dialed to 40, 32, 24 or 16 amps

Trade-offs

  • The live Amazon SKU is the NACS cable — a J1772 car needs an adapter to use it
  • Hardwire only — no plug, so it is not renter-friendly and not portable
  • 48A needs a 60-amp circuit, which is the install many older panels can't take
Max output48 A
Power11.5 kW
ConnectorNACS
InstallHardwired
Cable length25 ft
Warranty3 years
WiFi + appYes
CertificationsUL/cUL listed (file E510712); ENERGY STAR certified (GRS-077-W-HW-25J48-A-GB, qualified 2026-06-30)

Our charging-speed math. At 48A (11.5 kW) and 3.5 mi/kWh, roughly 40 miles of range an hour — about six more than the 40A Classic Connect, and it needs a 60-amp circuit to get there.

Build note. A metal case rated UL Type 4 indoor/outdoor, published for -30C to +50C (-22F to 122F), with 2.4 GHz Wi-Fi on an extended-range antenna, OCPP support and current selectable at 40, 32, 24 or 16 amps. Grizzl-E publishes the Ultimate 48A with a J1772 or a NACS output cable; the SKU Amazon lists today (GRS-077-W-HW-25N48-A-GB) is the NACS one, which is the connector our spec table records.

Specs read from the manufacturer spec sheet, on August 21, 2026. “Not published” means the brand does not state that figure.

#2Best published standards list

Leviton EV Series Smart Home Charger (EV40P)

The one charger here from a brand your electrician already stocks. Forty amps, ENERGY STAR, a NEMA 3R shell, a 25-foot cable and a certification list longer than anything else in this registry — plus the My Leviton app, which is the same app that runs Leviton's load centers and switches. You pay a real premium for that, and what it buys is a company that will still be answering the phone in ten years.

Strengths

  • ENERGY STAR certified, with an unusually deep listing set (UL 2594, 2231, 2251, 62, 991, 1998, 840)
  • NEMA 3R enclosure and a cable rated to -30°C, so an outdoor install is in spec
  • 25 ft cable and a pre-attached NEMA 14-50 input lead — a genuinely quick install

Trade-offs

  • The most expensive 40-amp charger we cover, by a wide margin
  • Leviton does not publish an adjustable-amperage range for this model
  • 2-year warranty is shorter than ChargePoint's 3
Max output40 A
Power9.6 kW
ConnectorJ1772
InstallNEMA 14-50 plug (pre-attached 3 ft input cable)
Cable length25 ft
Warranty2 years
WiFi + appYes
CertificationsUL 2594, UL 2231-1, UL 2231-2, UL 2251, UL 62, UL 991, UL 1998, UL 840, CSA C22.2 #280, NFPA 70 Article 625, OCPP 1.6, ENERGY STAR

Our charging-speed math. Forty amps at 240V is 9.6 kW, and at a middle-of-the-road 3.5 miles per kWh that is roughly 34 miles of range an hour — about 340 miles across a ten-hour overnight window.

Build note. Leviton publishes 208/240 VAC, 40A, 9.6 kW, a 25 ft (7.6 m) J1772 cable, a NEMA Type 3R water-resistant enclosure, an operating range of -30°C to 50°C, altitude to 6,500 ft, Wi-Fi 802.11 b/g/n with the My Leviton app, optional RFID control, OCPP 1.6 compliance and a 2-year limited warranty.

Specs read from the manufacturer spec sheet, on August 19, 2026. “Not published” means the brand does not state that figure.

#3Best for the biggest circuit

Grizzl-E Ultimate 80A

Almost nobody should buy this, and the people who should have no real alternative. 80 amps is double what the fastest mainstream home charger delivers, and the overwhelming majority of EVs cannot accept a single amp of it — they cap out at 48. The exception is a small group of cars with an unusually large onboard charger, the 2022-2023 F-150 Lightning Extended Range chief among them, where this unit genuinely halves the overnight charge. It is the same Made-in-Canada aluminum body and the same published -22F floor as the rest of the Grizzl-E line, hardwire-only, and it needs a 100-amp circuit to reach its rating — which is a service upgrade in most houses, not a breaker swap.

Strengths

  • 80A / 19.2 kW is the highest output any home charger here delivers
  • Current is selectable in hardware at eight steps from 80A down to 16A, so it can be installed smaller and turned up after a panel upgrade
  • Same UL Type 4 cast-aluminum case and published -30C to +50C range as the rest of the line, with OCPP as well as Grizzl-E's own app
  • Grizzl-E publishes ENERGY STAR for this model, which the 48A Ultimate's spec table does not carry

Trade-offs

  • Most EVs cannot use more than 48 amps, so for most buyers every dollar above a 48A charger buys nothing
  • 80A continuous needs a 100-amp circuit, which in most homes means a service upgrade costing more than the charger
  • Hardwire only — no plug, not renter-friendly, not portable
  • Costs roughly twice a good 48-amp charger
Max output80 A
Power19.2 kW
ConnectorJ1772
InstallHardwired
Cable length25 ft
Warranty3 years
WiFi + appYes
CertificationsUL E510712, ENERGY STAR — both as published on Grizzl-E's own Technical Specifications table for this model (the 48A Ultimate's table publishes the UL file only)

Our charging-speed math. At the full 80A (19.2 kW) and a mid-range 3.5 mi/kWh, roughly 67 miles of range an hour — but only on a car whose onboard charger can accept 80 amps. On a 48-amp car it delivers exactly what a 48-amp charger does, about 40 miles an hour.

Build note. Cast-aluminum enclosure, UL Type 4 indoor/outdoor, published -30C to +50C (-22F to 122F), hardwire only, 25 ft output cable, Wi-Fi 2.4 GHz plus OCPP, and current selectable at 80, 64, 56, 48, 40, 32, 24 or 16 amps. Grizzl-E publishes the Ultimate 80A with either a Type 1 (SAE J1772) or a NACS output cable; the SKU recorded here (GRU-077-W-HW-25DJ80-A-GB) is the J1772 build, which is what the Amazon listing resolves to.

Specs read from the manufacturer spec sheet, on October 25, 2026. “Not published” means the brand does not state that figure.

#4Named OCPP, but no version

Wallbox Pulsar Plus

The one to reach for when wall space is tight. It's among the smallest 48A chargers made, and Power Boost load balancing lets it share a circuit without tripping the main — which can save you a panel upgrade. It's a polished, premium unit, and the price says so.

Strengths

  • Genuinely compact for a 48A charger — easy to tuck in a tight spot
  • Power Boost load balancing can sidestep a panel upgrade
  • Bluetooth and Wi-Fi with a clean, modern app

Trade-offs

  • One of the pricier chargers in this group
  • Hardwired only — no plug-in option, so it's not renter-friendly
Max output48 A
Power11.5 kW
ConnectorJ1772
InstallHardwired
Cable length25 ft
Warranty3 years
WiFi + appYes
CertificationsENERGY STAR

Our charging-speed math. At 48A (11.5 kW) and 3.5 mi/kWh, about 40 miles of range an hour — and Power Boost can throttle it down to protect a shared circuit.

Build note. One of the most compact 48A chargers in its class, carrying both Bluetooth and Wi-Fi.

Specs read from the manufacturer spec sheet, on July 19, 2026. “Not published” means the brand does not state that figure.

What OCPP actually does for a house

Three honest use cases, and one non-use case.

Surviving a dead app.The real one. If the manufacturer’s cloud is retired, an OCPP charger is hardware you may be able to re-point rather than hardware that has quietly become a dumb box. Our guide to how long EV chargers last makes the broader point: the electronics usually outlive the software.

Home-automation control. If you already run an energy or home-automation system, OCPP is the interface that lets it start, stop and throttle the charger directly, instead of you scripting against an app that was never meant to be scripted. This is the main reason enthusiasts search for it.

Utility and demand-response programs.Some programs ask a charger to reduce output at peak times. Most residential programs today reach the charger through the manufacturer’s own cloud rather than through OCPP, and Grizzl-E, for instance, advertises demand-response participation through its own app. OCPP is an alternative route, not the usual one.

And the non-use case: speed.OCPP has no effect on how fast your car charges. That is set by amps and by your car’s onboard charger, which our guide to onboard charger limits explains. If the protocol is the only thing attracting you to a charger that is otherwise wrong for your circuit, buy the right charger instead.

What the makers publish, and what they do not

This is where a page like this earns its keep, because the differences are in the wording rather than in a spec row.

Grizzl-Eis the most forthcoming. Both Ultimate models carry “Communication: OCPP” in United Chargers’ own technical specification table, alongside Wi-Fi and the Grizzl-E Connect app. No version is given, and no setup documentation is published on the product page.

Levitonis the only one that names a version. Its EV40P page lists “OCPP 1.6” compliance in the same breath as UL 2594, UL 2231-1, UL 2231-2, UL 2251, UL 62, UL 991 and UL 1998 — the deepest standards list of any product in this registry. The same page is honest about what the charger cannot do: it publishes no load management, no load shedding and no adjustable amperage at all. It is a fixed 40-amp unit.

Wallboxis the awkward case, and we have ranked it last for a specific reason. On the US Pulsar Plus page, OCPP appears exactly once — in a sentence saying that the charger’s solar-charging feature is not compatible with OCPP or with multiple-charger installations. That is an acknowledgement of OCPP rather than a specification of it: no version, no profile, and a stated incompatibility with one of the features people buy the charger for. On the same read, that page published neither an enclosure rating nor a warranty term.

Everyone else publishes nothing.Across the rest of this registry — Emporia, ChargePoint, EVIQO, Autel, ELEGRP, Lectron, EVDANCE, WOLFBOX — we found no OCPP claim on the manufacturer page we cite for each product. Autel publishes the richest connectivity list of the group (Bluetooth, Wi-Fi, Ethernet, CAN and RS485) and still does not name OCPP. Absence here means “not published”, which is how every unknown is treated on this site; it is not proof that a charger cannot do it.

How to choose between the four

Most households: the Grizzl-E Ultimate 48A. It is the cheapest of the four, it is 48 amps on a 60-amp circuit, and the enclosure is the reason Grizzl-E units are our standing recommendation for fully exposed installs. One catch we state everywhere: the only child listing Amazon carries for the Ultimate 48A is the NACS output-cable version, so a J1772 car needs a permanent adapter in the chain.

If paperwork matters: the Leviton. A named OCPP version and seven UL standards is the strongest documentary position here, which is also what makes it the easiest charger to get past an HOA or a cautious inspector. Accept the fixed 40 amps and the two-year warranty, which is the shortest term in this registry.

If you have a 100-amp circuit to spare: the Ultimate 80A, the only 80-amp charger we recommend anywhere and only to the small group that can feed it. Eight published current steps from 16 to 80 amps make it the most adjustable charger on the site.

If you are already in the Wallbox ecosystem: the Pulsar Plus, with the incompatibility above understood.

If none of this moves you, that is a reasonable conclusion. OCPP is the right thing to care about if you intend to control the charger with your own software or you are buying defensively against the app being retired. For everyone else, our main home charger roundup ranks the whole field on the things that affect every charge, and the smart-charger page covers what the manufacturer apps actually do.

Frequently asked questions

What does OCPP mean on an EV charger?

Open Charge Point Protocol: a published, vendor-neutral language for communication between a charging station and management software. A charger that supports it can in principle be driven by third-party software instead of only by its manufacturer's own app and cloud service.

Do I need OCPP for home charging?

Almost certainly not for day-to-day charging. It matters in two cases: you want to control the charger from your own home-automation or energy software, or you are buying defensively so that the hardware still has a future if the manufacturer's app is retired. It has no effect on charging speed.

Which home chargers support OCPP?

On this site, four: the Grizzl-E Ultimate 48A and Ultimate 80A (both list 'Communication: OCPP' in United Chargers' own specification table), the Leviton EV40P (the only one to name a version, OCPP 1.6), and the Wallbox Pulsar Plus, whose own page names OCPP only to say solar charging is incompatible with it. No other manufacturer page we cite publishes an OCPP claim.

Is OCPP 1.6 different from OCPP 2.0.1?

Yes — 2.0.1 adds device management, security profiles and smart-charging features that 1.6 does not have. It matters for operators running fleets of stations. For a single home charger it is largely academic, and in any case only one product here publishes a version number at all, so on this page we rank on what is published rather than on version.

Will OCPP let me use any app with my charger?

No. OCPP standardizes the conversation between charger and back end, but the charger still has to let you change which back end it talks to, and the software you want has to support the profile the charger implements. None of the manufacturers here publishes a configuration procedure, and we have not tested any such integration — we own none of these units.

Does OCPP make a charger work with utility demand-response programs?

It can be a route in, but it is not the usual one. Most residential demand-response programs today reach the charger through the manufacturer's own cloud; Grizzl-E, for example, advertises demand-response participation through its own app rather than through OCPP. Check what your utility's program actually requires before buying for this reason.

Is an OCPP charger more expensive?

Not inherently. Our cheapest OCPP pick is also our top pick, and it sits in the same price band as plenty of non-OCPP 48-amp chargers. What is scarce is the published claim, not the capability — it is a feature the home market has not asked for loudly enough for makers to document it.

Sources

  • Grizzl-E (United Chargers) — Grizzl-E Ultimate 80A product page and Technical Specifications — The manufacturer's own product page, fetched 2026-10-25. Technical Specifications for SKU GRU-077-W-HW-25DJ80-A-GB: Type AC Level 2; Connector Type 1 (SAE J1772); Max power 80A 19.2 kW; Plug type Hardwire Only; Protection UL Type 4 Indoor/Outdoor Rating; Communication OCPP; Certifications UL E510712, Energy Star; Smart function Wi-Fi (2.4 GHz) and mobile application; Adjustable current 80A, 64A, 56A, 48A, 40A, 32A, 24A, 16A; Output cable length 25 ft (7.6 m); Operating temperature -30C to +50C (-22F to 122F); aluminum enclosure, made in Canada. Warranty is offered as a 3-year or 5-year option, and the connector as J1772 or NACS (accessed October 25, 2026)
  • Leviton — EV40P Level 2 smart charger product page — Manufacturer page, fetched 2026-10-04: 40 A, 9.6 kW, a 25 ft (7.6 m) cable, a NEMA Type 3R enclosure, an operating range of -30 °C to 50 °C, UL 2594 / 2231-1 / 2231-2 / 2251 / 62 / 991 / 1998 and OCPP 1.6 compliance, and a 2-year limited warranty. Recorded for a negative finding as much as a positive one: the page states NO load management, load shedding, load balancing or circuit-sharing capability, and publishes no adjustable amperage range — it is specified as a fixed 40-amp unit (accessed October 4, 2026)
  • Wallbox — Pulsar Plus EV Charger (US) — Manufacturer page: solar charging lets the Pulsar Plus run on 100% solar or a mix of solar and grid, and requires a separately sold Wallbox Power Meter; solar charging is not compatible with multiple-charger installations or OCPP; the same power meter enables dynamic load management (accessed September 18, 2026)
  • Wallbox — Pulsar Plus product page (energy-management section) — Manufacturer page, fetched 2026-10-04 for the load-management wording specifically. It describes dynamic load management as “maximize charging speed while staying within your home's power limit. When overall energy consumption is high, charging speed drops. When it's low, you'll charge at maximum speed”, and states that the energy-management features — load management and solar charging — need a Wallbox Power Meter to unlock. The charger is listed in 40 A and 48 A variants up to 11.5 kW with a 25 ft cable. As fetched on this date the page does not use the name “Power Boost”, and states no enclosure rating or warranty term (accessed October 4, 2026)
  • Autel — MaxiCharger AC Elite Home 50 A product page — Manufacturer page: 12 kW / 50 A with the output adjustable 16-50 A, a 70 A circuit required for full output, 208/240 V AC, hardwired, a 25 ft SAE J1772 cable, IP65 / NEMA 4X, an operating range of -40 to 131 °F (-40 to 55 °C), a 3-year warranty, and Bluetooth, Wi-Fi, Ethernet, CAN and RS485 connectivity with app, AutoStart and RFID-card authentication (cards sold separately). On load management it states that the charger “supports both Adaptive Load Management (ALM) and charger-to-charger Dynamic Load Balancing (DLB) for more flexible home energy management” and that “ALM requires compatible additional hardware, while DLB works between chargers without additional hardware” (accessed October 4, 2026)
  • United Chargers — Grizzl-E Classic Connect product page — Manufacturer page, fetched 2026-10-05: a 40 A plug-in Level 2 EVSE, “Max power 40A 10kW”, a NEMA 14-50 plug, adjustable current stated as “40A - 16A”, a 25 ft (7.6 m) output cable, UL Type 4 indoor/outdoor protection, certification “UL/cUL E510712”, Wi-Fi (2.4 GHz) with the Grizzl-E Connect mobile application, an operating temperature of -30 °C to +50 °C (-22 °F to 122 °F) and a 10.25 x 6.25 x 3.75 in enclosure. Available with a J1772 or a NACS output cable, and the warranty is a purchase option on the page — 3 year or 5 year. Listed at $349.99 direct on the date fetched. The page also advertises Demand/Response utility-program participation through the app (accessed October 5, 2026)
  • NFPA — Using the Latest NEC for EV Charger Installations — NFPA on NEC (NFPA 70) Article 625: EV charging is a continuous load, so circuits are sized to 125% of load (the 80% rule) (accessed July 19, 2026)
  • ENERGY STAR — Electric Vehicle Chargers — ENERGY STAR on EVSE efficiency: certified chargers use about 40% less energy in standby than non-certified units (accessed July 19, 2026)
  • U.S. DOE Alternative Fuels Data Center — Electric Vehicle Charging Stations — US DOE on charging levels: Level 1 (~1.9 kW, ~5 mi/hr), Level 2 (2.9-19.2 kW, ~7.2 kW typical residential, ~25 mi/hr), and DC fast charging (accessed July 19, 2026)

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