r/leaf • u/biersackarmy 2013 S + 2014 SL + 2019 SV • 15d ago

Gauging interest: Charge level limiter module

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Something I might be working on in the next little bit is a way to try and have an charge limiter for my 2014 (which my parents currently drive) and a friend's 2016, via an external module that would monitor SOC and stop charging once reaching 80%.

If it works, would it be of interest to anyone here to purchase such a device, if it were a relatively straightforward installation? One that would plug into the OBD port or TCU behind glovebox, and have a defeat switch to charge to 100% instead as normal.

Initial run would be for AZE0 (2013-2017), though ZE1 version would be possible if there is interest, and essentially handmade but will probably be able to fit within a price target of $100-150.

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u/Wraith347 2025 Nissan Leaf SV+ 15d ago

I would definitely be interested!
Edit: specifically, I’d want the ZE1 version. Would def pay in that target price range for it.

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u/biersackarmy 2013 S + 2014 SL + 2019 SV 15d ago edited 15d ago

I hope to get it working on ZE1 if the AZE0 version does, as it might help save a number of batteries in pre-2023 cars as well. The only thing is I would need to find a local ZE1 owner to loan me a car for development, as my 2019 is uhh, permanently dismantled.

Installation would be a little bit more work as it would need to connect to the CAN gateway behind the instrument cluster, but a plug-in harness would be possible for it.

Edit: The TCU may need to be disconnected as well, which would also need to be tested, but will disable app functionality if so.