Trojan T-105 Batteries ??

chuckftboy wrote:
I sold a 2009 Pace Arrow to a friend in 2015. It had (2) T-105's in it from the factory and he is still using them today.

I've gone 10 yrs on our 2008 Southwind and they are still going strong.

THe life of a lead acid battery depends on two things.
One: the quality of the battery.. Trojan's are very high quality.
Two: the care and feeding.. Example go 5 years without checking the fluid level. Odds are that battery is TOAST.

Excessive over or under charging can kill 'em too

Youngest battery I have replaxed 1 year (Bad charger. stupid then , learned since) Youngest properly maintained battery 1 week. alas the battery was defective.
Youngest GOOD battery properly mainteined, the startin battery on current towed, 5 years

Average life of a properly maintained GC-2 (like the Trojan T-105) 7-10 years with Trojan's tending more toward the high end.

Oldest battery I know of still in service 12 years. that as an AGM starting battery.

This does not mean there are not older Lead acid batteries and 12 years for an aGM is .. fantastic in that service. (or any other lead acid battery) Generally if it's 10 years old the owner's do not recall when last replaced.

I know the ages because
1: New RV (The interstates were OEM) My grand son was born in 2014 (The new DEKAs) and I've onwed the car 5 years had to replace the battery soon after purchase.

My two T105's celebrated their 8th year early this month. It was the first change I made to my rig when I bought it and moved in full time. I took the original single 12v marine battery and put in my gas golf cart and installed the two T105's. They are still going strong.

13 yrs before a cell went in one battery and killed the rest this past winter, 105s are good if looked after.

MNGeeks61 wrote:
I had a set of 6 T105's for 9 years, and I know people won't believe me. But they weren't discharged much and they were in a golf cart, not in an RV.

Maybe 20% discharged like once a week. For sure you can get 5 years out of them, depending on how deep they are discharged. I think 9 years was amazing.

I believe you, we got 9 years out of our Interstate batteries. Keep them topped off, do an occasional desulification and they were good to go.

No. There are batteries that make t-105's look shabby. For example a Rolls-Surrette 900 amp-hour two volt cell.

chuckftboy wrote:
With proper maintenance T 105's will out last any wet cell on the market.

I sold a 2009 Pace Arrow to a friend in 2015. It had (2) T-105's in it from the factory and he is still using them today. My golf cart is a 2009 that had (8) T 105's that I replaced in 2016 but were still ok, just couldn't go as far as when new. With proper maintenance T 105's will out last any wet cell on the market.

In Feb. I replaced the 4 U S Batteries in my current coach with T 105's and expect to be using them until 2026. (I will report back then) LoL!

Our first set of T-105's lasted 8-1/2 years, from 6/07 to 11/15. Replaced them because the side walls were beginning to bulge.

Time and the positive plate erosion is the ultimate limit and there is nothing you can do to slow it down from the OEM design.

That said, I'd use them until they no longer meet your electrical needs. These are not tires--where there is a risk of causing an accident, so use them up totally!

I had a set of 6 T105's for 9 years, and I know people won't believe me. But they weren't discharged much and they were in a golf cart, not in an RV.

Maybe 20% discharged like once a week. For sure you can get 5 years out of them, depending on how deep they are discharged. I think 9 years was amazing.