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battery degradation

  1. Very strange behavior/KWH misteryous lost - Someone else experience this?

    Problems, Driver Warnings or DTCs - Chevy Volt
    My12 has around 83k, starting notice this summer when was hot but now it's oposite, cold and same thing happening. My routine is drive 8km, use around 1.4-1.9 depending on the weather, make a short stop, then go back 8km where I loose 1 bar and 1kwh in first 3-500meters. People around here say...
  2. Sudden drop in KwH

    Chevy Bolt EV Charging
    Been driving my 2014 Volt for several years now, and I'm quite familiar with a range loss in the depths of winter (if that's what you can call it in Central Texas). It used to reliably get 10.5 to 11 kwh until the ICE kicked in. In the last few months, that has dropped to 8.3 to 8.5 kwh which is...
  3. Expected Volt Battery Life

    Generation 2 Volt (2016-2020)
    With GM’s decision to discontinue the Volt I had a couple questions for the forum relative to the expected battery life of a Volt. I usually keep my cars 10-15 years and have been averaging about 7k miles a year on my Volt in the two years I have owned it. So based on that it would take me...
  4. 9.4 kwh used (on 10 celsius) from 10.2 (30 celsius)

    Problems, Driver Warnings or DTCs - Chevy Volt
    Since this autumn, I don't know for shore if the weather is the reason but my Ampera ICE start to kick in on 9.4khw used or even lower, but in the summer I get 10.2, even 10.5 once. I try to fully discharge and fully charge over night for last week in hope to reset maybe the computer but no...
  5. Battery Health - Can Regenerative Braking Overcharge a Full SOC Battery?

    Care, Maintenance & Service - Gen2 Volt
    I've had my new 2017 Volt for several weeks now and I've run into a slight concern. I live at the top of a fairly sizable hill/mountain, which means that when I leave home, I start my trip with a good run of driving in L and/or with light to moderate use of the break pedal on the way down. (It's...
  6. GM deceiving us on Volt's battery degradation? No

    Li-Ion Battery, Charging, Mgmt System - Chevy Volt
    There's an interesting discussion in the comments section of this article: The idea is that our batteries are really degrading but we can't notice it because software is adjusting its algorithms with...
  7. Battery Degradation Test Results After 74K Miles.

    Chevy Volt General Discussion, News, and Events
    Here is the results of my battery degradation test. Data is collected from my Blink Charger. Problem is I never fully drain my battery, one of the only times this happened and I received a 100% charge was on May 23, 2012. Last June I decided to repeat that and arrived home with 1 mile remaining...
  8. Popular Mechanics: ELR squeezes 11.9kWh out of the Voltec battery

    Cadillac ELR General Discussion, News and Events
    Check out this new review of the ELR: Its the first time I see mentioned that the ELRuses 11.9kWh (instead of 10.6kWh) out of the 16.5kWh Voltec battery. That is intersting info. Assuming that the Popular Mechanics' data is correct, this means: GM widened the charge window from 65% to 72%...
  9. kWh Used vs. Battery Degradation FAQ

    Li-Ion Battery, Charging, Mgmt System - Chevy Volt
    Some Volt drivers (wrongly) assume that "kWh used" estimate can show or imply battery degradation. This is a complicated topic and has resulted in numerous threads from concerned drivers. Below is a summary of those threads. What is the "kWh used" estimate and where is it displayed? The Chevy...