โMar-18-2018 11:03 AM
โMar-22-2018 04:32 PM
work2much wrote:
Personally I would invest in a battery monitor (for any system) and do your own load test. Charge them up fully, put a load on them and see how many Amp hours the provide until you get to your low voltage shut off. ~12v rested. New these batteries should deliver 100 AH or so for the pair to 50% SOC. (12v) If you are close the batteries are still good to go. Even if they only give you 80AH there is still life left. It would be odd for the batteries to be working fine one day and quit the next.
โMar-22-2018 04:23 PM
thundercloud wrote:work2much wrote:
:h Why replace them if they are still providing the same performance?
Well I am going to continue to use them until they die. We live in an area that the nearest Trojan dealer is 60 miles away. I did contact that dealer and he does keep the T-105's in stocks for $162.00 ea. I am just a little nervous about them crapping out on a trip but I am sure they would give me a sign that they are starting to fail.....right?
โMar-22-2018 04:00 PM
work2much wrote:
:h Why replace them if they are still providing the same performance?
โMar-22-2018 03:14 PM
โMar-22-2018 03:07 PM
thundercloud wrote:
I have not seen any performance loss in the batteries throughout the years of use. So I have a few question to ask so I can make some informed decisions on replacing the batteries.
David
โMar-22-2018 02:53 PM
Kayteg1 wrote:As far as I know deep cycle batteries do not give or label CA or CCA ratings so how are you comparing their percentage to AH or energy capacity ?
The solar tester measure CA or CCA, what is in close relation to capacity.
So it will not give you exact number, but comparing % of CA to label CA you can predict capacity.
For golf cart battery choice who is better to ask than golf cart service center?
That is what I did years ago and Trojan at the time was having very poor CS, so dealers did not deal with them.
That is when I went to buy Sam's batteries, they were $46 a piece about 13 years ago and I was still using them on 11th year.
Now listening to our politicians, inflation is minimal, so you still should buy batteries for about $50, right?
โMar-22-2018 10:27 AM
โMar-22-2018 08:11 AM
โMar-21-2018 10:50 AM
โMar-21-2018 09:39 AM
Kayteg1 wrote:Looking at the discrption of that tester it measures CCA only even for deep cycle batteries . It does not appear to measure AH capacity .
New technology is amazing. After decades of dealing with load tester, this gizmo tells you actual capacity.
I wonder why with huge solar system you keep your camper plug in?
Something is not doing good charging job if you have to add water so often.
Solar battery tester
Battery choice is always a dilemma.
Having several cars, for TC I just use car battery. In the past I bought cheap golf-cart batteries from Sam's and they lasted me over 10 years. But I had top-end inverter/charger and remember adding water every 5 years.
โMar-21-2018 07:35 AM
thundercloud wrote:
So my 2008 Bigfoot has had 2 Trojan T-105 Plus 6 volt batteries since new (starting their 10th year of service).
โMar-20-2018 03:36 AM
โMar-19-2018 01:05 PM
Kayteg1 wrote:
I wonder why with huge solar system you keep your camper plug in?
Something is not doing good charging job if you have to add water so often.
โMar-19-2018 01:03 PM
Kayteg1 wrote:
I wonder why with huge solar system you keep your camper plug in?
Something is not doing good charging job if you have to add water so often.