From: clare@snyder.on.ca   
      
   On Sun, 19 May 2024 12:28:00 -0700, Bob La Londe    
   wrote:   
      
   >On 5/18/2024 7:33 PM, Jim Wilkins wrote:   
   >> "Bob La Londe"  wrote in message news:v2b0j1$2u9ft$1@dont-email.me...   
   >>   
   >> On 5/17/2024 5:56 PM, Jim Wilkins wrote:   
   >>> ...   
   >>   
   >>> I have a bit more experience with marine deep cycle lead acid   
   >>> batteries, and I don't think its as big of a deal as you think. ...   
   >>> Bob La Londe   
   >>   
   >> I post what I've seen at reliable sources, it's as cautious as the   
   >> battery manufacturers choose to be.   
   >>   
   >> Personally I test batteries by loading them down with a carbon pile   
   >> until they scream for mercy, and rarely mention the results because they   
   >> vary so widely. I tested stuff to and beyond its limits professionally   
   >> and have acquired or built the gear to find those limits at home. I   
   >> don't blow up batteries any more but I have tested circuit breakers to   
   >> destruction.   
   >>   
   >> UL "safety" testing is -dangerous-, much smoke and flame. The old   
   >> theatre curtain recipe of dipping cotton cloth in a solution of alum and   
   >> borax really does let it pass the vertical burning test.   
   >> https://elteklabs.com/test-capabilities/material-tests/flame-fire-hazard/   
   >>   
   >   
   >I never was employed doing destructive testing, but I did spend a decade   
   >or two doing low voltage communication contracting.  I learned there is   
   >what they say, and there is what there is.  Usually what they say fell   
   >short in my field, but sometimes it didn't.   
   >   
   >When they say an IR motion sensor will detect motion at 90 feet they   
   >mean if ambient is below 70F and the subject is large and is running a   
   >fever.  LOL.  They don't say if ambient is 90+ its virtually worthless.   
   >   
   >Seriously there are thousands of bass boats that don't have room for 4   
   >big deep cycles batteries running just three in series for the 36V TM   
   >and tapping the positive of the ground battery for nominal 12V for   
   >cranking and accessories.  The big thing is to charge as soon as they   
   >cool down (or get back to the hotel), and to have three equal batteries.   
   >   
   >With most pros running 20-23 foot glitter barges these days most have   
   >plenty of room in the back for batteries, but some older boats and/or   
   >smaller boats didn't.  Many have also switched over to a single high   
   >voltage lithium for their TM battery for motors upto 48V.  I wonder how   
   >they do on the Potomac in a winter tournament before sunrise when the   
   >water gels on the line and freezes in the reel.  The lead acid deep   
   >cycles would work.  Something has to keep the lithiums from dropping to   
   >ambient temperature.   
   >   
   >Anyway, this is all tangent of tangent now.   
   >   
   >   
   >--   
   >Bob La Londe   
   >CNC Molds N Stuff   
    Just keep the trolling motor running under load and the batteries   
   will stay warm. Don't stop for a beer!!!   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)