I have (6) 6V that I picked up from Sams Club. DWand I were just figuring out how old they've been used on 2 different trailers. So far they've been going on over 5 years and are still working great. They do get abused pretty good but we have plenty of charge going into them and I try my best to keep them filled.
greyhd wrote: I have (6) 6V that I picked up from Sams Club. DWand I were just figuring out how old they've been used on 2 different trailers. So far they've been going on over 5 years and are still working great. They do get abused pretty good but we have plenty of charge going into them and I try my best to keep them filled.
The basic chemistry and design of lead acid batteries is over 100 years old. For deep cycle, one of the most important factors is weight. The more lead they put into them, the more likely it is they will last a long time if treated right. The Trojan T-105 weighs 63 pounds. The Sam's Club Deka weighed in at 66-67 pounds. There were other considerations, but I decided the SC was worth trying out.
The SC was 230 AH, the Trojan 225 AH. The Trojan was $162 locally, the SC about $94 (tax included). The core charge for the Trojan was $20, for the SC it was $5, making the Trojan about $182, the SC about $100.
well i would not call overnight no load voltage drop a cycle,
unless the self discharge exceeded 5% , and that means bad battery replace them
to me a discharge use and deliberate recharge means a cycle
the means of recharge do not matter, driving, generator, shore power , solar
it is a cycle even if it is an incomplete recharge
the discharge might last hours or days and the recharge might be in a short high amp burst or long and slow
once you stop the recharge and start discharging in an active use amount (even parasitic loads) , you have started another cycle
yes the depths of the cycle can vary
but if you dry camp for the week end , then store and charge with shore power
that is one cycle, the batteries are in stasis
until you start using them again
DryCamper11 wrote:
MrWizard wrote: batteries in storage
with or Without shore power or Solar are Not being cycled
Agreed. And the definition of a "cycle" can vary as well.
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but if you dry camp for the week end , then store and charge with shore power
that is one cycle, the batteries are in stasis
until you start using them again
greyhd wrote: I have (6) 6V that I picked up from Sams Club. DWand I were just figuring out how old they've been used on 2 different trailers. So far they've been going on over 5 years and are still working great. They do get abused pretty good but we have plenty of charge going into them and I try my best to keep them filled.
The basic chemistry and design of lead acid batteries is over 100 years old. For deep cycle, one of the most important factors is weight. The more lead they put into them, the more likely it is they will last a long time if treated right. The Trojan T-105 weighs 63 pounds. The Sam's Club Deka weighed in at 66-67 pounds. There were other considerations, but I decided the SC was worth trying out.
The SC was 230 AH, the Trojan 225 AH. The Trojan was $162 locally, the SC about $94 (tax included). The core charge for the Trojan was $20, for the SC it was $5, making the Trojan about $182, the SC about $100.
What's the core charge got to do with it? It's a deposit that you get back, thus = $0.00!
Jerry & Dottie
98 Bounder 34V, 99 F-53 Ford V10 chassis
06 Saturn VUE 4I
ejforwood wrote: What's the core charge got to do with it? It's a deposit that you get back, thus = $0.00!
When I give them money and they give me a promise to give it back if (.....) it's not $0.00. The batts might get stolen, the RV might get totaled by the insurance company, etc. Call me old fashioned - but I have a preference to keep my money in my own pocket, not someone else's, unless they pay me interest.
It wasn't a major deciding factor, but it was a minor additional reason why I made the choice I did, so I mentioned it. Others who feel differently about the core charge can ignore it, but I felt it was worth mentioning.
MrWizard wrote: well i would not call overnight no load voltage drop a cycle
I wouldn't either. If it's of interest, the TriMetric uses 90% of capacity as its definition of a cycle. The AH remaining must drop below 90% and then begin to climb for the TM to record a cycle into its cycle history storage area. It stores info about the last 5 cycles, such as the lowest voltage reached, the lowest remaining capacity, etc., which can help when debugging a problem. It's nice to be able to look back and see how far you drew it down if you forgot to check before recharging.
ejforwood wrote: What's the core charge got to do with it? It's a deposit that you get back, thus = $0.00!
When I give them money and they give me a promise to give it back if (.....) it's not $0.00. The batts might get stolen, the RV might get totaled by the insurance company, etc. Call me old fashioned - but I have a preference to keep my money in my own pocket, not someone else's, unless they pay me interest.
It wasn't a major deciding factor, but it was a minor additional reason why I made the choice I did, so I mentioned it. Others who feel differently about the core charge can ignore it, but I felt it was worth mentioning.
FLA batteries are the most bang for the buck in most all cases in a $$$ sense but in some applications AGM makes more sense for other reasons.
Core charge is always a $$$ consideration because often I do not go in with a core and often keep the old batteries for one reason or another since I tend to replace when they reach 50% capacity from a fresh charge.
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