https://torque-bhp.com/community/main-forum/voltage-current/ Torque Discussion Board en-US Sat, 10 Oct 2026 20:29:03 +0000 wpForo 60 https://torque-bhp.com/community/torque-discussion-ideas/voltage-current/#post-42563 Tue, 12 May 2020 18:59:38 +0000 Torque main forum moreause https://torque-bhp.com/community/torque-discussion-ideas/voltage-current/#post-42563 https://torque-bhp.com/community/torque-discussion-ideas/voltage-current/#post-42559 Mon, 11 May 2020 16:59:19 +0000 i suspect for a 5 day draw you will not see any significant voltage change The huge irony of this problem is that this is a Prius Prime "Plug in Hybrid" that has a range of 25-30 miles before the engine starts and there is any need to "crank an engine" Discussion on the Prius Prime forum that I have been active on is that many users have been experiencing dead 12v batteries ...probably triggered by the Covid "stay at home" situation. At the moment, it appears (and I am trying to document) that if the high amperage EV Charger is left connected after the traction battery is fully charged, that will result in the 12v battery ending up fully discharged... as it did in my case in less than 5 days on a six month old battery. ...and there is no way to "start" the car other than charging or jumping the 12v battery ...even though the ic engine does not need to be started. >> External PID]]> Torque main forum bevhoward https://torque-bhp.com/community/torque-discussion-ideas/voltage-current/#post-42559 https://torque-bhp.com/community/torque-discussion-ideas/voltage-current/#post-42558 Mon, 11 May 2020 12:03:17 +0000 bevhoward, I think your car's ECU should provide information about the status of your battery 12 volts, you need to use external PIDs]]> Torque main forum cintakc https://torque-bhp.com/community/torque-discussion-ideas/voltage-current/#post-42558 https://torque-bhp.com/community/torque-discussion-ideas/voltage-current/#post-42557 Mon, 11 May 2020 06:08:19 +0000 Torque main forum moreause https://torque-bhp.com/community/torque-discussion-ideas/voltage-current/#post-42557 https://torque-bhp.com/community/torque-discussion-ideas/voltage-current/#post-42556 Mon, 11 May 2020 00:58:10 +0000 ...and if it tries to communicate to the ECUs it will also stop the car from sleeping Thanks for that "heads up" ...appreciated. The OBD2 port is powered with the car in the "Power OFF" state, and the adapter shows the two voltage level readings (Voltage Control Module and Voltage OBD Adapter) available that I am looking for and with more accuracy (0.1v) than I need for this quest. I'm looking for evidence of sudden 12v battery voltage drops from something switching on. In addition, I'm trying to document the system behavior with the traction charger attached and disconnected. It appears that leaving the charging connector connected after traction battery charging is completed creates a scenario where the 12v battery will be completely discharged in less than 5 days. Both of these voltages are available to Torque in the OFF state and, so far, I cannot see any evidence that watching these via ODB2 has activated any other functions or battery consumption. I've also been careful to keep the keyfob out of range during all of this snooping setup and learning process. Thanks again, Beverly Howard]]> Torque main forum bevhoward https://torque-bhp.com/community/torque-discussion-ideas/voltage-current/#post-42556 https://torque-bhp.com/community/torque-discussion-ideas/voltage-current/#post-42555 Mon, 11 May 2020 00:34:48 +0000 Torque main forum bevhoward https://torque-bhp.com/community/torque-discussion-ideas/voltage-current/#post-42555 https://torque-bhp.com/community/torque-discussion-ideas/voltage-current/#post-42554 Mon, 11 May 2020 00:19:48 +0000 Torque main forum bevhoward https://torque-bhp.com/community/torque-discussion-ideas/voltage-current/#post-42554 https://torque-bhp.com/community/torque-discussion-ideas/voltage-current/#post-42553 Sun, 10 May 2020 21:23:40 +0000 Torque main forum Chrispy https://torque-bhp.com/community/torque-discussion-ideas/voltage-current/#post-42553 https://torque-bhp.com/community/torque-discussion-ideas/voltage-current/#post-9110 Sun, 10 May 2020 18:48:12 +0000 Torque main forum bevhoward https://torque-bhp.com/community/torque-discussion-ideas/voltage-current/#post-9110