SOC Delta -- Is it significant?

My 2010 Gen III (135k) is still having hybrid battery problems without resolution (almost all lights on, drivable in degraded mode) and I still can't find anybody in Oahu, HI to trouble shoot other than the dealer ($5500 battery replacement).

I have concern that just replacing the battery will not solve the problem...

One strange value I have noticed using EnglineLink (iPhone) is State of Charge (SOC) Delta (SCOmax and SOCmin compared). My car was sitting for about 5 days I went to drive around the neighborhood just to provide some charge for the hybrid battery. When I got in the car, SOCmax read 28.50% and SOCmin was 0%. As I drive the car, the hybrid battery charge does increase, even though my display no longer shows the moving arrows. If I drive long enough, the SOC difference seems to level out, but it takes a little while.

Is there any significance to this? For instance…at least one block is not holding a charge and therefore likely defective?


Thank you for everybody’s thoughts and expertise!

 

Thanks. I think indeed there is an issue with block 14.

Finally on a test drive last night (all that I can do with the car), block 14 started at 12.29v and all others above 15. The Delta SOC stayed around 31% and the SOC min seemed frozen in the 45% range while the SOC max continued to increase.

Interesting development. This is the first time block 14 has shown the low voltage, but maybe has been dying a slow death.

I will look for a salvage battery – good idea.