Tesla Motors Club
So I had this little gadget on my combustion engine vehicle and , well, with all the talk about the 12V battery error message popping up, I thought to revisit this little doo-dad.
its this cat:
https://www.amazon.com/gp/product/B07WCW49YM/ref=ppx_yo_dt_b_asin_title_o02_s00?ie=UTF8&psc=1
it's mostly designed for combustion engine vehicles because it shows you cranking amps and things of that nature.
It uses Bluetooth Low Energy so you have to be in about ~30 feet ish to connect to the little guy. it will show you the state of the the battery and when the HV battery charges it, it will show you "charging" and you will see the graph showing you the charging current, it updates as you are connected to it.
things like "cranking test" will not be applicable since there is no starter motor, but maybe, as I think about this, since the HV contactors need voltage from the 12V to close them, maybe this would show up under that option? I will test this if I remember to do so.
anyway, my point to post this was to offer a low cost solution for those to keep track of their 12v charge directly from your phone without having to use tesla fi or those other apps.
there are a few of these on amazon and some may be cheaper. there also may be other alternatives, but i know this works and have had it on model 3 for a few weeks now. I use the ohmmu battery and it works nicely with it.
its this cat:
https://www.amazon.com/gp/product/B07WCW49YM/ref=ppx_yo_dt_b_asin_title_o02_s00?ie=UTF8&psc=1
it's mostly designed for combustion engine vehicles because it shows you cranking amps and things of that nature.
It uses Bluetooth Low Energy so you have to be in about ~30 feet ish to connect to the little guy. it will show you the state of the the battery and when the HV battery charges it, it will show you "charging" and you will see the graph showing you the charging current, it updates as you are connected to it.
things like "cranking test" will not be applicable since there is no starter motor, but maybe, as I think about this, since the HV contactors need voltage from the 12V to close them, maybe this would show up under that option? I will test this if I remember to do so.
anyway, my point to post this was to offer a low cost solution for those to keep track of their 12v charge directly from your phone without having to use tesla fi or those other apps.
there are a few of these on amazon and some may be cheaper. there also may be other alternatives, but i know this works and have had it on model 3 for a few weeks now. I use the ohmmu battery and it works nicely with it.