Wednesday, May 05, 2021 at 19:37
Hi Zippo,
All AGMs aren’t the same, you are quoting standard AGMs.
I know of two high quality AGMs such as Lifeline and Optima which accept very high charge rates.
For charging a Lifeline 100ah battery in my previous caravan - I used to connect three cheap 40amp chargers to it and pump 100 amps into it.
The following quotes are from Optima and Lifeline – you can look them up on the internet.
Lifeline “Due to the low impedance design, Lifeline@ batteries can tolerate in-rush current levels as high as 5C - (500A for a IOOAh battery).”
Optima “Alternator 13.65 – 15.0V, no amperage limit”
As for Century Dual force, they are designed to run off the alternator output of a 4WD.
At startup my 4WD is 14.4v and settles to 14.1v when hot - it charges faster than my previous flooded cells.
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