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ChargePoint Home Flex Installation

The Home Flex is the most adjustable home charger on the market, which makes it the easiest one to fit to an older panel. We install it hardwired or plug-in, set it to the right amperage, and handle the permit and inspection.

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Insured, permit pulled, inspectedSame day estimate, firm after a free visitFree site visit before any price is firmTesla, ChargePoint, Emporia, WallboxBased in Plainfield, IL

The ChargePoint Home Flex earns the name. It can be set anywhere from 16 to 50 amps in the ChargePoint app, it comes as a hardwired unit or with a NEMA 14-50 or 6-50 plug, and it is sold with either a J1772 connector or a NACS connector for Teslas and the newer Fords, Rivians and GM models. It is UL listed, ENERGY STAR certified, rated for outdoor use, and carries a three year warranty.

That flexibility is exactly why we recommend it for houses that are short on panel capacity. A Wall Connector wants a 60 amp circuit to be worth installing. A Home Flex can run on a smaller circuit and still fill most cars overnight, and when the house gets a bigger service later, we turn it up in the app instead of buying a new charger.

The 23 foot cable is the other quiet advantage. It reaches the charge port on either side of a two car garage, or across a driveway to a car parked outside, which often lets us mount the charger closer to where the wire comes in and keeps the run, and the price, shorter.

Tell us which car you drive before you buy. The Home Flex comes in a J1772 version and a NACS version, and the right one saves you from carrying an adapter for the next ten years.

Hardwired or plug-in: which ChargePoint to buy

Buy the hardwired version if you want the full speed. Hardwired, the Home Flex charges at up to 50 amps, and it goes on a standard breaker without the ground fault protection a garage outlet now needs, so it does not fight with the charger's own ground fault circuitry. It is also the cleaner install, with nothing to unplug and nothing to work loose over years of heat cycles.

Buy the plug-in version if you might take the charger with you when you move, or if you already have a 50 amp outlet in the garage that is in good shape. Plugged in, ChargePoint caps the unit at 40 amps on a 50 amp breaker. That is about 30 miles of range an hour, which is more than enough for nearly every commute.

  • Hardwired: up to 50 amps, the full speed of the unit
  • Plug-in: NEMA 14-50 or NEMA 6-50, capped at 40 amps
  • J1772 connector for most EVs, NACS connector for Teslas and newer NACS cars
  • Indoor or outdoor mounting, 23 foot cable

Setting the amperage to your panel

Every charger is a continuous load, so the breaker has to be sized at 125 percent of what the charger is set to pull. A Home Flex set to 48 amps goes on a 60 amp breaker. Set to 40 it goes on a 50, and set to 32 it goes on a 40. The full 50 amp setting needs a 70 amp breaker and heavier wire, and for most homes the step from 48 to 50 amps is not worth that extra cost.

We pick the setting from the load calculation, not from the box. On a newer 200 amp house that is usually 48 amps. On a 100 amp house with a gas range and dryer it is often 32 or 40. We set it in the app before we leave, label the breaker to match, and note it on your invoice so the next electrician knows exactly what is on that circuit. If you want to check your own house first, the free load calculator on this site runs the same math.

What a ChargePoint install costs here

A Home Flex with the panel near the garage runs $1,200 to $2,500 installed, with the charger included. A run across the house, through finished walls, outside in conduit or out to a detached garage runs $2,000 to $4,000. If the panel itself has to be replaced, that adds $2,000 to $4,500, though the Home Flex is the charger most likely to let you skip that step.

Every price includes the Home Flex itself, the circuit, the permit, the inspection and the app setup, so the number you approve is the number you pay.

Questions people ask

What size breaker does a ChargePoint Home Flex need?

It depends on the amperage you set. Hardwired at 48 amps it needs a 60 amp breaker, at 40 amps a 50 amp breaker, and the full 50 amp setting needs a 70 amp breaker. The plug-in versions run at up to 40 amps on a 50 amp breaker. The breaker is always sized at 125 percent of the charging setting.

Should I get the hardwired or the NEMA 14-50 ChargePoint?

Hardwired if you want full speed and the most reliable install. Plug-in if you plan to move and take it with you, or you already have a good 50 amp outlet. Hardwired also avoids nuisance trips from the ground fault breaker that garage outlets now require.

Why does my plug-in ChargePoint keep tripping the breaker?

The current code requires ground fault protection on 240 volt outlets in garages, and the Home Flex has its own ground fault protection built in. The two can trip each other. The usual fix is converting the install to hardwired, which removes the outlet and the conflict. We diagnose it on the first visit.

Does the ChargePoint Home Flex work with a Tesla?

Yes. ChargePoint sells a NACS version with the Tesla style connector, and a conversion kit for J1772 units. A J1772 Home Flex also works with a Tesla through the adapter that came with the car. If you have a Tesla and a non Tesla EV in the same garage, the J1772 version plus the Tesla adapter covers both.

Will a ChargePoint Home Flex qualify for the ComEd rebate?

It meets the charger rules, it is a smart, ENERGY STAR certified Level 2 unit. The rebate itself is closed for 2026 and reopens January 1, 2027, and it also requires three years on a time of use rate and an installer in ComEd's network. Naperville is not ComEd territory, so ComEd rebates do not apply there.

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