Since it’s not always possible to install a Tesla Wall Connector, here’s a relatively simple and effective solution for an outdoor, waterproof Tesla Mobile Charger—if that’s a more doable option for you.
You can simply use a Pelican 1400 Case, which fits the charger perfectly. The biggest challenge is figuring out how to pass the charger plug through the case. For that, you can use icotek gland adapters. For this specific project, I used the KVT-ER 50|2 model. It’s surprisingly affordable and high quality.
Spoiler alert: I’m not a professional electrician. This should be considered a DIY project. Also—Hubbell gear can be pricey.
Here’s how my setup looks for a 20 amp, 250V solution:
- Hubbell waterproof wall outlet (HBL2320SW) installed in the backyard, paired with the matching plug HBL2321SW. You’ll most likely need a GFCI breaker for safety in this case.
- 12/3 SOOW cable – I bought a 100 ft reel and used about 90 ft. Yes, there’s a small voltage drop over that distance, but it’s minimal—around 1 volt difference.
- To protect the cable from physical damage, I covered it with HydroMaxx 3/4″ Flexible Corrugated Black PVC Split Tubing Wire Loom. 100 ft was enough. Garden staples work great to secure it in place.
- Just before the Pelican case, I installed another Hubbell HBL2323SW and HBL2321SW, so I can quickly disconnect the box if needed.
- Inside the Pelican 1400 case, I drilled two holes—one for the icotek gland, and a smaller one for the SOOW cable.
- To prevent damage from accidental tugs, I used heavy-duty zip ties to bind the SOOW cable and the charger plug cable together, effectively making them behave like one single cable.
- For the 6-20R connector, I used a Bryant BRY5469NC. It’s well-made, but note that 12/3 SOOW cable is near the upper limit of acceptable diameter for this connector. A good alternative is the Legrand PS5469XGCM.
- I mounted the charger inside the Pelican case using 1×1 inch double-sided tape to keep it from shifting when the case is lifted.
- Don’t forget to use a plug protector on the charger connector to keep it clean and dry.
This setup has been working great. It’s survived heavy snow weeks, constant rain, ect. I haven’t noticed any overheating. I even installed an Evo temperature sensor and check it every 2–3 months—no issues so far.
It’s definitely more durable and reliable than the typical outdoor electrical boxes you find on Amazon. Totally worth the effort to plan and install.
With everything connected, the Tesla app shows around 240V and a charging speed of 14 miles per hour.