Group 27 AGM mid life performance report
My 90AH Northstar AGM battery is now 38 months old, and has accumulated ~465 deep cycles. When I cycle it, generally I consume 35 to 65AH nightly, average about low 40's Since June of 2015 it ...
Forum Discussion
AGMs do tend to have higher CCA ratings, which helps for faster engine starting.
But whether it is of any real benefit in your application is debateable.
When my AGM is bursting full, It will read 0.0x amps at 14.7v from any charging source.
So when i start my engine with this battery, when amps taper back to 0.0x at 14.7v, the battery is again bursting full.
How long does this take, after starting my engine, For amps to taper back to 0.0x indicating full after starting the engine?
About 45 seconds.
And that is the first cold start of the day. Subsequent starts take less time and take less from the battery.
I know this is not what we are told or is common internet folklore. that a bunch of short trips keep depleting the battery until failure, But I do not see it happening.
Not with fuel injected gas engines, and not unless there are huge loads on the alternator during those short trips, or perhaps one needs to crank their starter motor for 10+ seconds each time.
But whether it is of any real benefit in your application is debateable.
When my AGM is bursting full, It will read 0.0x amps at 14.7v from any charging source.
So when i start my engine with this battery, when amps taper back to 0.0x at 14.7v, the battery is again bursting full.
How long does this take, after starting my engine, For amps to taper back to 0.0x indicating full after starting the engine?
About 45 seconds.
And that is the first cold start of the day. Subsequent starts take less time and take less from the battery.
I know this is not what we are told or is common internet folklore. that a bunch of short trips keep depleting the battery until failure, But I do not see it happening.
Not with fuel injected gas engines, and not unless there are huge loads on the alternator during those short trips, or perhaps one needs to crank their starter motor for 10+ seconds each time.
