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Can you charge an EV in the rain or snow at home?
Updated
Yes. Charging in rain or snow is normal and the equipment is designed for it. The connector carries no power until it is locked into the car and the car and charger have checked each other. Every listed charger also has ground-fault protection that cuts power if current leaks. The weak spots outdoors are the wall outlet, the cable on the ground, and chargers with no real weather rating.
What the weather ratings mean
| Rating on the listing | Plain meaning |
|---|---|
| NEMA 3R | Made for outdoor use. Handles rain, sleet and snow falling on it |
| NEMA 4 | Adds protection against splashing and hose-directed water |
| IP66 | Dust tight, and protected against strong water jets |
| "Indoor or outdoor" | The maker allows outdoor installs. Look for the actual rating in the manual |
None of these ratings mean the charger can sit under water. Mount it above any level where water or snow piles up.
Outdoor install checklist
- Hardwire it if you can. A hardwired charger has no outlet for water to get into. Our plug-in vs hardwired page explains why.
- If you must use a plug, the outlet needs a weatherproof in-use cover that closes over the plug while it is plugged in.
- Holster the connector. Keep it off the ground and pointing down so water, ice and grit stay out of the pins.
- Coil the cable. A cable lying in the driveway gets driven over, frozen into ice and cut by shovels.
- Look before you plug in. If the connector is packed with snow or ice, clear it first. If the cable jacket is cracked or the pins look burnt, stop using it.
Chargers on this site that suit outdoor installs
- EVIQO 48A hardwired: the listing states an IP66 / NEMA 4 housing, the highest weather rating of our picks. Caveat: the brand is newer, so there are few multi-year reports.
- ChargePoint HomeFlex hardwired: the listing says indoor or outdoor install and mentions a cold-resistant cable. Caveat: its 50A setting needs a 70A circuit. Most homes will set it lower.
- EVIQO NACS: the same IP66 / NEMA 4 housing with a Tesla-style plug. Caveat: it has only a small number of reviews so far.
Cold slows charging a little because the car spends some power warming its battery. Check your real numbers with the charge time calculator, and see every pick on the best chargers page.
When to stop and call someone
Stop charging and call an electrician if a breaker trips again and again, if the outlet or plug is hot or discolored, or if the charger shows a ground-fault error that comes back. Never charge with the charger box or the wall outlet standing in flood water. Never use a household extension cord outdoors for EV charging.
Electrical caveat: this page is general information, not electrical advice for your house. Circuits, outlets and breakers for EV charging should be checked or installed by a licensed electrician, to your local code, with a permit where required.