any alternator manufacture or reseller that does not certify the following should be looked at with great suspicion
1. at what rpm is the the following test results
2. voltage, and
3. amperage at that speed and voltage
stating peak voltage, at some unknown and often insanely high rpm, and then stating dead short amperage, is just not
at all honest and those numbers are worthless.
for a flooded lead acid battery i am (12volt nominal) i am looking for how many amps at 14.4volts (min) at what rpm
and having been ran long enough to be thermally stable.
i build custom automotive alternators, any of which will eat for lunch any of these pma modified car alternator in
any area one wants, peak power, thermally stable power, amperage and/or voltage.
btw none of them are pm alternators.
i can't tell you how many dissatisfied folks i have ran into over the years duped by these wild claims of the pma snake oil salesman.
this is not to say that there is not a single pma auto alternator that does anything like what is claimed, it is just that i have never seen one yet.
personally i can find no redeeming quality that would make me want to part with any significant amount of money purchasing one.
ymmv, however
in my opinion for the money spent a small aircore unit would outperform any of these pma auto alternators without any trouble.
bob g