Mike Spurgeon wrote:
Michael J. Mahon wrote:And a shorted 500A battery will make a fire *much* faster than a 200A battery. ;-)If you've never seen the 1.5 volt wet cells the phone company used for battery backup in the 1970s, they were pretty impressive.They could melt most wire you think would work...
I've seen them--actually a whole *room* full of them! Nickel-iron cells are very reliable and very low impedance (high current capability). AFAIK, the phone company was the only big user of them. -michael NadaNet networking for Apple II computers! Home page: http://members.aol.com/MJMahon/ "The wastebasket is our most important design tool--and it's seriously underused."