BATTERY LIFESPAN survey...
Near impossible to recollect the number of discharge cycles So........ Anyone gone ONE HUNDRED EIGHTY BOONDOCKING DAYS on the same battery? Doesn't sound like much unti you figure out this m...
Forum Discussion
Mex, not sure if this is what you want.
We have a seasonal off-grid site we park the 5er at and use as a second home/ cabin in effect from mid-April to end September each year since 2012. So that is three of those done at about 24 weeks each on the current sets of batteries. Also take 5er for a few long weekends in the woods in winter.
One pair of 6v Interstate GC2 XHD 232AH (new Feb 2011) still meets baseline SG and full capacity
One pair of 6v Exide GC135 at 226AH (new Nov 2011) still meets baseline SG and full capacity
One pair of T-1275 12v batts (new May 2011) previously in a golf car for two years has now done one full season 2014 and is still in the same shape as after I "recovered" them late 2013 when I got them.
I think I could do it all for the next few years with just the two T-1275s and not have the four 6s, but am not going to dump four good 6s.
We sit there on solar for the 24 week season and do fairly shallow cycles daily maybe 85-99% SOC except for the odd cloudy time when we get down to 50% before doing a generator/charger recharge. On winter weekends in the woods no solar a 50-90 every second day with all six batteries. Was 50-90 every day with just the four 6s so the two 12s added on make a big difference there.
With the solar shallow cycles it is no great strain on the batteries like doing 50-90s, so IMO the batts are not doing anything exceptional.
We have a seasonal off-grid site we park the 5er at and use as a second home/ cabin in effect from mid-April to end September each year since 2012. So that is three of those done at about 24 weeks each on the current sets of batteries. Also take 5er for a few long weekends in the woods in winter.
One pair of 6v Interstate GC2 XHD 232AH (new Feb 2011) still meets baseline SG and full capacity
One pair of 6v Exide GC135 at 226AH (new Nov 2011) still meets baseline SG and full capacity
One pair of T-1275 12v batts (new May 2011) previously in a golf car for two years has now done one full season 2014 and is still in the same shape as after I "recovered" them late 2013 when I got them.
I think I could do it all for the next few years with just the two T-1275s and not have the four 6s, but am not going to dump four good 6s.
We sit there on solar for the 24 week season and do fairly shallow cycles daily maybe 85-99% SOC except for the odd cloudy time when we get down to 50% before doing a generator/charger recharge. On winter weekends in the woods no solar a 50-90 every second day with all six batteries. Was 50-90 every day with just the four 6s so the two 12s added on make a big difference there.
With the solar shallow cycles it is no great strain on the batteries like doing 50-90s, so IMO the batts are not doing anything exceptional.
