but on old style batteries, check your battery water level at least monthly. i had a battery tender that i forgot to check one month and it cooked all the juice out of my battery. bill, motown -----Original Message----- From: STAN SIMM [mailto:SSIMM@triad.rr.com] Sent: Tuesday, March 08, 2005 2:22 PM To: Dave McDonald; shelbymustang@carmemories.com Subject: Re: Repro Autolite batteries I'll add my 2 cents worth to what Dave says. I believe it best to invest in a Battery Tender and leave it hooked up to the battery. In a normal lead-acid battery, sulfating of the plates is what kills a battery and having a slight pos. chg. on it will minimize this. Regards, Stan 5S071 6S1467 ----- Original Message ----- From: Dave McDonald To: shelbymustang@carmemories.com Sent: Tuesday, March 08, 2005 11:39 AM Subject: Re: Repro Autolite batteries I've had good luck with the acid type *if* you take care of them. I always disconnect it when in the garage, check electrolyte levels frequently, and charge it every 60 days or so. The previous two have lasted 6-7 years. I'll have to admit that when the current one dies I'll probably get a sealed one, just too convenient. Dave McDonald 6S1757 GT350HZ@aol.com wrote: I have one of the add acid variety, my first one died after 4 years, may have been partially my fault because the electrolyte level was low in one chamber (I didn't check them all, all of the time. I have a friend who has had a sealed battery without any problem for about a year. He bought it from Virginia Mustang. I would have bought the sealed one, but mine died on a Saturday morning of a car show. So I ran over to Dallas Mustang for a replacement. Lee 66 # 869