Tuesday, September 17, 2013

Battery Pack Problem

I didn't drive the Vogue today. When I started it the battery monitoring system instantly sounded an alarm. A quick check showed Pack #5 in the boot (trunk) had it's indicator light off. I re-connected the charging lead but it's internal BMS switched off the charger path straight away. I took my daughter's car to work.
I'll check it out when I get home.
I have a sneaky suspicioun that I just had my first cell failure in active use (later edit - wrong - they are fine). Unfortunately my packs will tend to kill two cells at a time due the the two-parallel nature of the system.
At may be that my 65km on Friday night has pushed some week cells into failure (nope - see next post). I did have two cells fail while in storage - a couple of years ago now (and to date they are the ONLY two).
I'll post the results...

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