SOC on these during normal driving will be in the upper 60s percent. Maybe 71% at the most.

Optimum for this "chemistry" was told to me to be 60% plus minus 5% for best life. Like Steve said, the lower the swing the better.

Above 70% and hot chemistry is bad.

25 mph electric is pretty good. With practice you can hit the 28 mph barrier. Ready or not the engine is coming on above 28. It takes a real steady foot.

 

Hi all,

Redid the hybrid battery load test and the attached file is how the new battery behaves in the 2010 Escalade hybrid.
Took 10 minutes to get down to around 43% from 62% and Auto-restart.
Did not take but a couple minutes that the cells got back to 15.5+V and the engine went into Autostop even though the SoC was only like 49%
Hope I did it correctly.
Master Keith, please do your thing !
Thanks

 

Looks great. dV (difference between highest and lowest voltage) and V01-V20 are read on the left vertical axis with 0.5V spacing. SoC and current are read on the right vertical axis.

Note that for visibility, I added 0.05V to the dV value to keep it off the horizontal axis.

The current value is definitely not right. You were almost certainly pulling more than 0.75A, but I trust that the values, though inaccurate, correctly reflect discharging when (+) and charging when (-).

Your dV reading was rock steady throughout except when there was a CHANGE in current. This is due to the speed of data collection. Values are read sequentially over time, thus V01 and V20 were read at different times. You know you don't have a problem because when current is constant, the dV is very low and steady.



I've also attached the spreadsheet.

 

Thank you very much. The truck runs very well now. $2600 well spent.

 

If just one cell is bad within a module... the voltage under load will sag real bad for the block it is in.