Detecting Electric Vehicle (EV) devices


Do you have or thought about a 240 charger or 240 adapter to convert from 120? I personally don’t have an EV but it’s pretty clear by the May posts on this subject that luck is better with 240. I have yet to read where someone has had a 120 detected.
I do know the sell and adapter for virtually every EV ever produced.


I have a 2017 e-Golf and charge it with a JuiceBox 40A power source.

Although I have only had Sense running for less than a month. Still eagerly awaiting detection. It’s a lease though, so it will go away at the end of the year. Still deciding what to replace it with.


I’ve had my Sense installed only since March 15, and last night it finally detected my 2014 Chevy Volt, that I use a Clipper Creek LCS20 240v charger to charge (mainly at night). I need to give it more time of course, but it only detected part of my charge last night, and nothing from this morning (doing a preheat while plugged in).

Hopefully it gets better :slight_smile:


I currently have a Clipper Creek LCS20 Level 2 (240v) charger to charge my 2014 Volt, but I ordered an OpenEVSE that I’ll install soon, so hopefully my current detection won’t change (I don’t think it should; it just opens/closes a large contactor to allow the car’s on board charger to do it’s thing).

I agree that it would be perfect if Sense would integrate the wireless integration of the OpenEVSE data recording/reporting that it has to better allow for better detection of EV charging.


I enjoy the openevse and the wifi control interface. I’m interested to learn if your installation interferes with detection and I agree it is a simple contactor. The OpenEVSE does provide control over the pilot signal so you can set the charging current available and there is the ability to set the charging start time or the amount of energy you need to deliver. If you decide to use the timers I suggest you ask for the OpenEVSE firmware to be updated from 4.8.0 to 5.0.1 and use the wifi firmware 2.8.0 which you can install over the wifi connection. I use the timer in the car since my OpenEVSE firmware is 4.8.0 and I understand has a problem with the timer and accumulated kwhr reading that is corrected in 5.0.1. Good luck with the OpenEVSE installation. I’ve had no problems with the OpenEVSE 40A installation and have moved it from inside to outside location. The sense hasn’t detected my EV probably due to the moving changing the detection signature and the upgrade of the 70 year old wiring.

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Using the clipper creek @240V may be what’s causing your issue. I know exactly what you’re doing to accomplish that (I had a CC and did the exact same for some time) but it could be the 12A thing (vs the actual 16A using a proper L2 EVSE vs the CC adapted to “mostly” L2) that could be messing with the detection algorithms.

In order words, Sense is looking for the Volt expecting to see a certain amperage that would indicate one charging at L2. The adapted Clipper Creek EVSE solution isn’t providing the amperage draw that Sense would be expecting to see, so it may simply be tossing out the data accordingly.

Consider upgrading to one of the real 16A L2 solutions - you can get a Duosida 16A EVSE or only a few hundred bucks on Amazon for example. For what I sold my Clipper Creek for, I upgraded to full 16A charging with a Duosida. :wink:


Thanks for the thoughts. I seem to recall others have had detection with two phase 12A charging. Sense does not seem to “combine phases” much in its machine analysis, which means sometime people get half of the full load detected. So I’m skeptical that’s the problem. But the Level 2 chargers have indeed dropped a lot since I last looked!


The specific 16A models (which is all you need for a Volt anyways) are certainly inexpensive. I’ve seen them down below $200 on Amazon.


Just wanted to add that I replaced my Clipper Creek LCS20 with an OpenEVSE charger this weekend, and Sense is still picking up my 2014 Volt charging, although it still doesn’t seem to pick up the entire charge cycle.


Another vote for detection support of the chevy Bolt, I do see in this thread that @RyanAtSense says that the volt/bolt detection is launched, so I am happy to help with any additional data that could assist refinement of the detection, personally I have so far only charged three times since installing Sense so I may just need more samples


Sense really needs to see quite a few cycles to properly detect an EV. It’s hard to quantify that, but give it some more time. We have successful Bolt detections, so it will likely come online eventually.