At 07:57 PM 8/21/2006, James Newtons Massmind wrote: >http://www.thomas-distributing.com/mh-4aa200.htm $5.77 per 4 pack of 1.5 >volt (actually 1.2) 2AH NiMH batteries. They will recharge 500 to 1000 times >and can be "run-flat" without damage. To match a 36V 12AH SLA pack, I would >need 180 AA cells or 45 packs for a cost of $259.65. Compared to $80 and >100-200 recharges for the SLA, the total lifetime cost is at about 1.5 times >better. Burglar alarm system backup batteries - 12V, 7.5 AH - are about Can $18.00 from the supplier just down the street. Pair of those gives you 12V 15 AH for a lot less than US $80. They seem to do OK in deep discharge situations so long as you don't leave them discharged for more than a few hours. On a related note, a different suppler has a real deal going on for a short while: 12V 55 AH AGM battery for Can $60. He started out with 2 pallets of them and is down to a couple of dozen left. Apparently, someone ordered the wrong part number. Normal price is Can $159 ! dwayne -- Dwayne Reid Trinity Electronics Systems Ltd Edmonton, AB, CANADA (780) 489-3199 voice (780) 487-6397 fax Celebrating 22 years of Engineering Innovation (1984 - 2006) .-. .-. .-. .-. .-. .-. .-. .-. .-. .- `-' `-' `-' `-' `-' `-' `-' `-' `-' Do NOT send unsolicited commercial email to this email address. This message neither grants consent to receive unsolicited commercial email nor is intended to solicit commercial email. -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist