Path: utzoo!attcan!uunet!wuarchive!mit-eddie!media-lab!minsky From: minsky@media-lab.MEDIA.MIT.EDU (Marvin Minsky) Newsgroups: sci.electronics Subject: Re: Car Battery Rechargers Message-ID: <3718@media-lab.MEDIA.MIT.EDU> Date: 16 Oct 90 14:48:42 GMT References: <1990Oct4.222556.20668@athena.mit.edu> <4179@rsiatl.UUCP> <13019@sdcc6.ucsd.edu> <524@cow.ecs.oz> Reply-To: minsky@media-lab.media.mit.edu (Marvin Minsky) Organization: MIT Media Lab, Cambridge MA Lines: 9 In article <524@cow.ecs.oz> bmp@cow.ecs.oz (Bruce Paterson) writes: >I've heard of a setup which (on the flick of a switch) uses a lantern 12V >dry battery to run your ignition while either your almost dead car battery >slowly cranks the engine (without pulling the volts to the ignition so low >that the car would never start anyway) or (if things are really bad) you push >the car. Yes. I did this on a Volkswagen bug (6-volt) in the 60s. It worked fine. I used 4 standard D-sez flashlight cells and it worked every time, with a very weak main battery. 5 cells worked even better.