From: dannyb@panix.com   
      
   In  "Jim Wilkins"  writes:   
      
   [snip]   
      
   >(I'm looking for a two pack of 25 to 30 amp hour ones   
   >to retrofit my Amigo brand Amigo scooter)   
      
   >-------------------------   
   >Does the Amigo take the U1 size? My experience with several brands is that   
   >they degrade rapidly if not kept near fully charged, but last several/many   
   >years with adequate care. Sitting unused can let them become "sulfated"   
   >where they won't accept much current at the normal charging voltage and   
   >appear dead, but they can often be restored with a higher current-limited   
   >voltage from an adjustable power supply. I haven't tried pulse desulfators.   
      
   There are slots next to the seat which hold two AGM batteries   
   that are a bit smaller than U1, namely 7 x 3 x 6.75 (approx).   
      
   This is pretty standard.   
      
   The "claimed" capacity is (depending on specific unit) 20 Amp-hrs   
   for AGM.   
      
   The less I say about labels and garbage the better.  the   
   number I see is more like 10 amp-hrs. I've been pretty   
   careful about charging...   
      
   The original OEM charger is a 24 Volt unit of unknown specs   
   which plugged into the side.   
      
   One day it died and I simply picked up a Battery Tender brand   
   Battery Tender.. and clip it on the batteries directly.  I   
   discovered it gets me about 20 percent more effective time.   
      
   What I'm doing these days is have the two batteries in   
   the slots, AND ALSO another two sitting on the foot rest.   
      
   I run off the latter units, which usually gets me through   
   the day, and, if needed, swap cords into the other two.   
      
   (One of these days I'll set up a switch).   
      
   And yeah, I top off all the batteries in my stable   
   about once/month.   
      
   Given the "real" capacity seems to be   
   half the listed number   
   I've been waiting and watching for   
   the li-ion ones to drop in price..   
   Oh, they also weigh   
   a LOT less.   
      
   Thanks   
      
   --   
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   Knowledge may be power, but communications is the key   
   		     dannyb@panix.com   
   [to foil spammers, my address has been double rot-13 encoded]   
      
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