Yes, you can charge in the rain with the EV-ACS4005T. Its IP66 rating means the housing is dust-tight and sealed against powerful water jets — rain, including wind-driven rain, is exactly what that mark is tested for. The useful detail is where the promise stops: IP66 describes the closed housing, not the plug joint at the wall or the connector sitting unplugged.
Key Takeaways
- IP66 on the EV-ACS4005T means dust-tight and sealed against powerful water jets — rain is inside the promise.
- The rating covers the closed housing only: immersion, pressure washers, the plug joint and an uncapped connector are outside it.
- Wet-weather care for a portable is about the two ends: shelter the outlet joint, cap the connector, keep the box out of standing water.
- Dry the connector before capping it after a wet session, and stop using the unit if the cable jacket is damaged.

What the IP66 Mark on This Charger Says
An IP rating has two digits. The first covers solids, the second covers water. On the EV-ACS4005T both digits are 6, the top of each scale used on chargers:
- First digit 6 — dust-tight. No dust ingress that could affect operation. Driveway grit and road dust are covered.
- Second digit 6 — powerful water jets. Water in powerful jets from any direction does not get in — a step above IP65, tested with smaller jets.
- Tested as a closed housing. The rating is earned by the sealed enclosure in a laboratory test — a statement about the control box, not every joint in the setup.
Whether rain charging is safe at all is answered in our guide to charging an electric car in the rain: connectors carry no power until seated and the safety handshake completes.
What IP66 Covers, and What It Does Not
| IP66 on this unit covers | IP66 does not cover |
|---|---|
| Rain from any direction, including storm rain driven sideways | Immersion — sitting in a puddle or floodwater (that is what higher immersion ratings describe) |
| Splashes and spray from wet ground or passing cars | A pressure washer at close range, which is a harsher jet than the test |
| Dust, grit and dirt reaching the housing | The NEMA 14-50 plug-to-outlet joint, which is not a sealed connection |
| A rinse from a garden hose to clean the housing | The charging connector left unplugged and uncapped in the weather |
Our comparison of IP ratings for EV chargers sets IP66 against the rest of the scale, and our explainer on whether portable EV chargers are waterproof covers the same weak points for portable units generally.
The Two Ends the Rating Does Not Reach
A portable charger has two ends outside its sealed housing, and wet-weather care is mostly about them:
- The wall plug end. The NEMA 14-50 plug and its outlet are not sealed as a pair. Outdoors, the outlet needs a weather-rated in-use cover, and the joint should sit off the ground, clear of standing water.
- The car end, when unplugged. Seated in the car, the connection is made for wet use. Between sessions, cap the connector or park it in its holder so rain and grit stay off the contacts.
- The unit itself, while working. Keep the control box off wet ground where you can — hung up or on a dry surface — rather than sitting in the deepest water on the driveway.

Using the EV-ACS4005T in Wet Weather
The EVDANCE EV-ACS4005T is a 40 A NACS portable charger delivering up to 9.6 kW, with current adjustable in 16/24/32/40 A steps, a 1.77-inch display, and a 25 ft or 28 ft cable. As a portable, it works outdoors for a session, then gets coiled and carried. Three habits match that pattern:
- Shake water off the connector before plugging in, and check the pins look clean.
- After a wet session, let the connector dry before capping it for storage, so moisture is not sealed in.
- Inspect the cable jacket as you coil it; a cut jacket is the point where water stops being a surface issue. Stop using a damaged unit.
Frequently Asked Questions
Does IP66 mean the EV-ACS4005T is waterproof?
It means weatherproof against jets and rain, not submersible. Waterproof in the immersion sense is a different, higher second-digit rating. Treat IP66 as “rain is fine, puddles are not.”
Can I leave the EV-ACS4005T plugged in outside between rainy sessions?
The housing tolerates it, but the plug joint is the weak point: it needs a weather-rated in-use outlet cover and to sit out of standing water. Most owners coil a portable away between sessions instead — that also removes the theft question.
What should I do after charging in heavy rain?
Unplug, shake and wipe water off the connector, let it air-dry briefly, then cap it before coiling the cable. Check the display shows no fault before the next session.
Related Reading
- Can You Charge an Electric Car in the Rain?
- Are Portable EV Chargers Waterproof? IP Ratings Explained for Drivers
- IP Ratings for EV Chargers: IP54, IP65 and IP66 Compared

