trojan t-105
Does anyone know what the cycle life expetcancy of Trojans T-105 is?
Forum Discussion
T105's are rated for about 500+ cycles discharged to 30%SOC or so, and something like 750 cycles at 50% DOD
That assumes proper care and charging.
My experience is that I have a pair of T125, now 12 years old, that were passed on to our inlaws two years ago. SG is still very close to new, and they still hold a charge and appear to still be at least 80% of rated capacity. These batteries have 250+ discharge cycles on them to between 30%-50% SOC (50-80% DOD)
Let them get low on water or fully discharged a few times, and all bets are off. either will kill them rather quickly.
Trojan does have on the website a graph of expected cycle life vs. depth of discharge for the GC batteries.
And I emailed trojan to ask them what the defined as End of Life. it is when the capacity of a charged battery is 50% or less of the spec for a new battery after it has been fully charged and equalized.
If you want more cycles, the renewable energy line of GC batteries has double to quadruple the cycle life depending on how much your willing to pay. The longer cycle life batteries have slightly lower initial AH ratings for the same plates and slightly lower initial SG. No free lunch.
That assumes proper care and charging.
My experience is that I have a pair of T125, now 12 years old, that were passed on to our inlaws two years ago. SG is still very close to new, and they still hold a charge and appear to still be at least 80% of rated capacity. These batteries have 250+ discharge cycles on them to between 30%-50% SOC (50-80% DOD)
Let them get low on water or fully discharged a few times, and all bets are off. either will kill them rather quickly.
Trojan does have on the website a graph of expected cycle life vs. depth of discharge for the GC batteries.
And I emailed trojan to ask them what the defined as End of Life. it is when the capacity of a charged battery is 50% or less of the spec for a new battery after it has been fully charged and equalized.
If you want more cycles, the renewable energy line of GC batteries has double to quadruple the cycle life depending on how much your willing to pay. The longer cycle life batteries have slightly lower initial AH ratings for the same plates and slightly lower initial SG. No free lunch.
