Why the “Flex” matters more than the amps
Most chargers lock you to a single amperage. The Home Flex lets you set it in the app, and that solves the most common home-charging headache: buying a charger your panel can’t fully feed. ChargePoint’s datasheet lists the selectable outputs explicitly — 16, 24, 32, 40, 48 and 50 amps — with the breaker sized at 125% of whichever you pick. If your service can only spare a 40-amp circuit today, you run the Home Flex at 32 amps; step to a 50-amp circuit for 40 amps; and if you upgrade your panel down the road, you bump it to 50 amps in software without buying a new charger. That adaptability is worth real money to anyone unsure about their electrical capacity, and it is the reason this unit survives a panel capacity check that disqualifies fixed 48-amp chargers.
The lineup, as ChargePoint sells it today
This is the part that has changed since we first wrote this review, and it changes the buying decision. ChargePoint now publishes three install configurations, each available with either a J1772 or a factory NACS connector:
| Configuration | Max output | Circuit | Who it suits |
|---|
| Hardwired | Up to 50 A (12 kW) | 60 A | Owners who want the full speed and a permanent fixture |
| NEMA 14-50 plug | Up to 40 A (9.6 kW) | 50 A | Anyone with an existing 14-50, and renters |
| NEMA 6-50 plug | Up to 40 A (9.6 kW) | 50 A | Garages already wired for a 6-50 welder outlet |
Two consequences worth being clear about. First, the headline 50 amps is a hardwired-only feature — if you buy a plug-in SKU you are buying a 40-amp charger with a 50-amp ceiling you can never use. Second, the NACS option means Tesla owners no longer have to choose between this hardware and an adapter-free plug; we cover that variant separately in our Home Flex NACS review. If you are weighing the two receptacle types, NEMA 14-50 vs NEMA 6-50 settles it.
Charging speed, worked out
At its 50-amp ceiling the Home Flex delivers about 12 kW. Using our standard reference of roughly 3.5 miles of range per kWh, that’s about 42 miles of range per hour — a large battery fills in a night with room to spare. Set to 40 amps on a plug-in SKU or a 50-amp circuit, it’s about 34 miles per hour.
ChargePoint’s own published figures are lower: up to 37 miles per hour hardwired and 30 on the plug-in models. That gap is not a contradiction, it is a different assumption about the car — their number implies an efficiency nearer 3.1 miles per kWh, ours assumes 3.5. Neither is wrong; a heavy electric truck will beat neither. We print the assumption precisely so you can substitute your own car’s figure, which is on its efficiency label as kWh per 100 miles. For the 30–60 miles most people actually drive in a day, both numbers mean the same thing: a one-to-two-hour top-up.
The app, the firmware and what happens when WiFi drops
The app is the reason people pay for this charger, and it is the most mature in the category — scheduling around a cheap overnight window, reminders, session history and cost tracking. Two less-advertised details from the datasheet matter more than the feature list. Firmware is updated over the air, so the station keeps current on its own rather than being frozen at whatever shipped in the box. And it holds up to 90 days of charging session data locally — about 100 sessions — so a garage with flaky WiFi loses the live view but not the record. The radio is dual-band 2.4/5 GHz 802.11 a/b/g/n, which is worth knowing if your only usable signal at the far end of the garage is 5 GHz. If that is a live question for you, WiFi and connectivity is the page to read before you buy any smart charger.
None of this makes it charge faster. Speed is amps times volts, and an app has never added an amp. What the app buys is the scheduling that moves your charging into an off-peak window — which, on a time-of-use rate, is where the money actually is.
The install, and one GFCI trap
Hardwire it on a 60-amp circuit to reach the full 50 amps; the plug-in SKUs run at 40 amps on a common 50-amp circuit and stay movable. It’s outdoor-rated (Type 3R per UL 50E), rated from -22°F to 122°F, with a 23-foot cable that reaches most garage layouts, and it is UL and cUL listed to UL 2594 and UL 2231 and NEC Article 625 compliant.
One detail to hand your electrician before the circuit is run, straight from ChargePoint’s datasheet: on a hardwired install, use a non-GFCI breaker, because an external GFCI can conflict with the charger’s own internal 20 mA ground-fault protection and cause nuisance trips. On an outdoor plug-in install, the opposite applies — code requires an outdoor-rated GFCI breaker upstream. Getting that wrong is the most common cause of a charger that trips for no obvious reason; our GFCI tripping guide covers the diagnosis. For what the whole job costs, our install cost breakdown itemizes it, and installation cost by state shows what the labor line should look like where you live.
Who should buy it — and who should skip it
Buy it if you want one confident decision: a charger that fits any panel, a genuinely useful app for scheduling around cheap overnight rates, over-the-air firmware, and a 3-year warranty from an established brand. Skip it if you’re price-driven and will schedule charging in your car’s own app anyway — a value 48-amp unit like the Emporia gets you the same amps and a decent app for less, and a no-frills Grizzl-E is tougher for the outdoors. Also skip it if you specifically want a compact body or dynamic load balancing on a nearly full panel, because that is the Wallbox Pulsar Plus’s job — the two are the premium pair, and Wallbox vs ChargePoint settles which problem you actually have. The Home Flex is the safe premium default, not the cheapest path.
One more pairing if this hasn’t settled it. If the charger is going on an exposed wall, the choice usually narrows to this against Autel’s NEMA 4X unit: Autel MaxiCharger vs ChargePoint Home Flex settles it on enclosure against adjustability.