Red top Optima in my NT254 was the best thing I have done to the tractor. Put it in 6 years ago and I let it sit for up to 3 months at a time then it fires right up. Before this I was replacing the standard group 24 lead acid batteries every year. Ever since the Optima I have never had to drag out the jumper cables or charger. Before Optima it was a regular routine and always when it was the most inconvenient for me or I was in a rush.
This reminds me, I haven't started her up since before Turkey day.
What I found is that when the tractor sat unused the lead acid batts would self discharge fast but the optima doesn't. I have no parasitic loads, but lead acid just discharges even when disconnected.
I have found that any type of battery will fail if allowed to go dead then sit dead, even an Optima. Most batteries can survive going dead if immediately recharged, but only a few times. The key factor is how long they sit around dead, more than a day is too long and they stay dead. A week or a month dead and forget it, it's gone.
Gene :^)
This reminds me, I haven't started her up since before Turkey day.
What I found is that when the tractor sat unused the lead acid batts would self discharge fast but the optima doesn't. I have no parasitic loads, but lead acid just discharges even when disconnected.
I have found that any type of battery will fail if allowed to go dead then sit dead, even an Optima. Most batteries can survive going dead if immediately recharged, but only a few times. The key factor is how long they sit around dead, more than a day is too long and they stay dead. A week or a month dead and forget it, it's gone.
Gene :^)