My 6v Optima battery is still working fine after about 15 years.
Little or no driving (rarely more than 1K miles per year), and parked/stored in an unheated garage. The trucks starts each spring, after a little cranking.
My Spring “start-up” procedure is:
- crank the engine for 5-10 sec with choke full open (ignition off)
- pull the choke closed
- crank the engine, slightly opening the choke when the engine/ignition “catches”/starts
Usually this starts the engine on the first or second “cycle through that sequence.
Each Spring, I expect the 6 volt Optima to “give it up”
[give it up - to cease efforts now otherwise pointless]
