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On 4/28/2025 10:21 PM, Frank Krygowski wrote:I miss those days....the ability to push-start should be a standard feature.On 4/28/2025 8:47 PM, Radey Shouman wrote:My cars will bump start on a small incline or with two guys pushing on flat ground.>>
On the other hand, if you want to experience the depths of true "off",
just let that atavistic 12V battery run down, and prepare to find an
experienced mechanic with a jump starter just to get the door open,
never mind rolling down the windows.
I've had two 12V battery incidents with my Kia EV. Despite having a 64 kw-hr battery full of electrons (at something over 300V), the car would not start. Some parasitic loss had drained the very conventional 12V battery down to a voltage too low to fire up* the electronics. One was a complete mystery, the other was a device plugged into an outlet within the car.
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I happened to have a spare motorcycle battery on hand and charged. I used that to "jump" the car's 12V battery, and all was well. It doesn't seem to require much current to kick the electronics awake, energize the relays, etc.
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The car does have a "utility mode" in which the big traction battery tends the 12V. That's mostly intended for things like camping, where one might run lights, etc. off the 12V.
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(* Note the archaic term still in use: "fire up," as with a steam engine.)
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