Another one bites the dust..

Chevy Spark EV Forum

Help Support Chevy Spark EV Forum:

This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others.

h71

Member
Joined
Dec 23, 2024
Messages
12
Location
Dayton, Ohio
Cruise set at 55, going up a small incline, 39 miles on the gom, yellow "!" lit up, followed by reduced power, then complete loss of power. Gom freaked out, reverted to full battery status and miles went to 3.. It's not the 12v. Disconnected 12v and letting it sit overnight, I'll try again tomorrow to charge it, but I already know...😢
 

Attachments

  • 20250204_202826.jpg
    20250204_202826.jpg
    719.6 KB
  • 20250204_193814.jpg
    20250204_193814.jpg
    2.4 MB
Sounds like a couple weak cells. You can clear the stored codes with the VCX Nano or an OBD scan tool with bidirectional control. That sort of sustained load cruising uphill is when they show up. With a Bluetooth OBD tool and Torque you can watch the individual cell voltages and see which ones are sagging under acceleration and the highest voltage while charging. My cells 80 and 81 are the worst. 16 and 49 aren't great either. My issues started at the end of summer, and I'm still commuting 30 miles a day, even in winter. In warmer weather I was still driving it further away and fast charging it, I just treated 20% as 0.
 
Back
Top