T-600 Batteries

Rookie here....'95 T-600, I use it to pull my RV, gets little use. I'm a little slow on battery maintenance, owned the truck for 4 years, batteries are giving me starting problems so I took 'em out yesterday to clean, clean connections, de-sulfate and charge individually...4 batteries, but only 3 batteries were hooked up. No cables for 4th battery, no indication that it was ever hooked up.....what gives ?

Regards
Gemstone1

 

Thanks....So maybe the previous owner was using it just to even out the battery hold down bracket.....after 4 years of not being hooked up, it still registered 6 volts !

 

No short stub cables either....strange....maybe it was only designed to have 3 in service. As for the cold, one of the benefits of being retired and a fulltime RV'er....you tend to migrate towards warm weather in the winter, cool weather in the summer.... thanks.

Regards
Gemstone1

 

I have definitely pushed my luck with the batteries....4+ years....I have been charging the batteries one at a time at 25 amps...even the one that was completely disconnected for over 4 years took a 12.6v charge, I put another one on the charger at 25 amp setting, went away for 3 hours and came back to find the charger had fried...literally, the alligator clamps were melted and misshapen....I think I found the source of my problems. Regardless, I will be buying a new charger and replace all four batteries...and purchase a set of jumpers that are missing.

Thanks for the replies

Regards
Gemstone1