Roy Peterson's Recent Activity

  1. Roy Peterson liked Louis19's post in the thread 12 volt battery failing to start the car.

    Reading threads across the board and the very pertinent posts generated by the participants, I am wondering about the sudden rash of 12V...

    Dec 24, 2024 at 9:48 AM

  2. Roy Peterson replied to the thread AGM battery for Gen 4/Gen 5 Prius/Prius Prime and observations on the 12-V charging system.

    Made 2 trips Friday about 10 minutes each way. Temperature 44F. Charging voltage constant 14.4 volts both trips. This morning voltage...

    Dec 21, 2024 at 7:21 PM

  3. Roy Peterson replied to the thread AGM battery for Gen 4/Gen 5 Prius/Prius Prime and observations on the 12-V charging system.

    Battery voltage was 12.82 volts after drives this morning. Trip 3 this afternoon at 47F showed 14.4 volts for 15 of the 19 minute...

    Dec 19, 2024 at 7:26 PM

  4. Roy Peterson replied to the thread AGM battery for Gen 4/Gen 5 Prius/Prius Prime and observations on the 12-V charging system.

    My car has no added accessories. I charged the traction battery yesterday evening and then unplugged the charge cable. This morning the...

    Dec 19, 2024 at 4:00 PM

  5. Roy Peterson liked Gokhan's post in the thread AGM battery for Gen 4/Gen 5 Prius/Prius Prime and observations on the 12-V charging system.

    Observations after weeks of testing: The BMS does not let the AGM-battery resting voltage to dip below 12.61 V (77% SOC). It does...

    Dec 19, 2024 at 9:22 AM

  6. Roy Peterson replied to the thread AGM battery for Gen 4/Gen 5 Prius/Prius Prime and observations on the 12-V charging system.

    For the past several weeks, temperatures have been in the 30’s and low 40 range. During this period, the aux battery charging voltage...

    Dec 18, 2024
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