![]() Most cells were 2.8 to 3 v when it finally quit. 2.7 V is not a hit it and die instantly #. Interestingly enough, I logged battery cell volts down to 2.51 on some cells briefly, and that didn't shut the car down. Once battery V goes below 3.0 volts idle load, the end is very near. obd user SOC is still 0.39% HiRes raw SOC drops abruptly from ~4.1 to 1.00% at this point. When out of power, GOM reads 0 miles, and you get a "shift to park" DIC msg. When user %SOC goes to 0, there's about 0.7% usable remaining, or about 1.5 miles left, since raw HD SOC is 4.1% when the car dies. The DIC stops blinking, with a small orange battery symbol. Below are user unless noted.Īt 6%: propulsion power reduced Īt 5%: DIC goes to "low" blinking orangeĪt 2%: (battery 3.27v at idle], I could still get 50-60 kW when floored sluggish feeling is mostly remapped peddle.Īt 0% user soc on app, obd user SOC reads 0.39%, and raw HD SOC is 4.86%. One of the "raw" PIDs gives you a higher resolution (.01% actual data steps) than all the others. There are 2 different SOC readings - "user" - the value you see in the app, and a few different "raw" PIDs, which are a few % different than "user". This is from a 2017 LT, 28k miles These results are a single case. But if you know you have 10 miles left, and you only need to go 7, then it's a false alarm that can cause a lot of un-needed anguish or frantic charge searching action. GM wants to freak out a driver at 5% to be sure they don't strand themselves. Same idea as running an ICE car out of gas to better understand what reserve the gas gauge might have. Click to expand.A few days ago, I did a "run it till it dropped" test, with %SOC data from an obd logger.
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