dhanson865
Well-known member
mwalsh said:dhanson865 said:OK, found the thread where mwalsh was discussing this. Below is my reply summarizing the AHr at loss discussion
Losses are triggered at
56 AHr (12 down to 11)
52 AHr (11 down to 10)
48 AHr (10 down to 9)
44 AHr (9 down to 8)
with a disclaimer that you may see it drop 2.x AHr past that if in extremely hot conditions.
or if you prefer bands maybe something like
Loss of bar 12 - between 53.75 AHr and 56 AHr
Loss of bar 11 - between 49.75 AHr and 52 AHr
Loss of bar 10 - between 45.75 AHr and 48 AHr
Loss of bar 9 - between 41.75 AHr and 44 AHr
Again, and with all due respect, I don't think it's necessary to tweak the numbers I've used unless more data to support the range you've suggested is forthcoming. For example, bar 9 - we have never seen anyone loose it as low as 41.75AHr and only one person thus far (whom I personally think was either mistaken or is a complete outlier) who lost bar 9 (well) below 42AHr. We have also never seen anyone loose bar 9 at anything close to 44AHr, with 43.56AHr being the highest reading at bar loss thus far.
The premise is it isn't losing the bar at 41.x AHr, It's losing the bar because it dropped below 44. Theoretically if you put it in an paint oven and baked the battery you could get it to show some larger amount of loss before the hysteresis allows the bar to drop off the dash.
In this line of thinking there is no significance to the lower number. It doesn't matter what the number was when you saw the loss if you know the higher number that triggered the loss.