"converted ones as much as 130A"   

Do you mean like Subie 2.2 conversions (and Bostig and so on)?  That's what I now have in my '85 Vanagon; I have no idea of what the Subaru alternator in that motor puts out, guess I could look it up somehow.  I just assumed it was the same or a little more than the original 1.9 L wasserboxer motor alternator.

Rich
San Diego

      From: Karl <tdiguru@WESTYVENTURES.COM>
 To: vanagon@GERRY.VANAGON.COM 
 Sent: Tuesday, July 4, 2017 2:52 PM
 Subject: Re: Wheelchair Batteries vs GW Aux Battery
   
Because almost all later Vanagon alternators can put out 90A, and
converted ones as much as 130A. Granted that isn't usually what the
battery is seeing - unless deeply discharged.

On 7/4/2017 2:37 PM, Alistair Bell wrote:
> Karl,
>
> Just out of curiosity, why do you consider 65A continuous to be undersized ?
>
> I have the older version of the blue seas acr, been working great for me for must be at least 15 years. Never found the current rating a limit.