The 12V power source solar panel
So I came across this on EBay... and they are very local to me... but it sounds like a $100 experiment gone bad. The specs on this thing are waaaaaaay different than any other 12V solar panel that...
Forum Discussion
How I see it now:
3 year old used T-1275. Doubt it's at 150AH any more... maybe 130-135AH left in it, it lost 10-12% capacity due to hard use as a golf cart battery the first 500 charges. Possibly abused. Now it lives the easy life.
I usually get out for a week or two, 3-5 or 6 x a year.
I probably go through 35 to 50, maybe 60 amps in a day. Close to 55-60% SOC, depending on how much the heater and fan get run at night.
If I go with the 150w panel and a Solar 30, and I set the voltage at the battery to 15.0V for a Vabs. Let's say at start I get 7.5 to 8 amps charging for 5 maybe 6 hours worth with aiming at the sun directly 4x a day, and I am down in Quartzsite in January.
I know RJ had a couple of group 27's and was running 190W to them with 2 panels through the 14.4V RJ special. The T-1275 is more problematic than a pair of group 27's, hence going for the higher voltage, and ultimately higher amps getting the recharging done in the T-1275 deep cycle sweeper battery with a ton of antimony in it.
Going from 6.3 amps to 8.3 should help things along, I would think, a little bit quicker. Adjustable V setting should help also with slightly higher V setting at 15.0v. I know I won't see 100% state of charge, but it would be nice to get it to at or barely above mid 90's SOC daily if at all possible. I don't see the battery getting a little warm, say luke warm, near the end of charging as a bad thing, higher temps tend to create the potential for molecules moving faster and creating more chemical reactivity among the elements involve, in this case, shedding sulfur from lead plates and back into H2SO4, a forced reverse reaction to get the sulfur back in solution, where it will have potential again.
3 year old used T-1275. Doubt it's at 150AH any more... maybe 130-135AH left in it, it lost 10-12% capacity due to hard use as a golf cart battery the first 500 charges. Possibly abused. Now it lives the easy life.
I usually get out for a week or two, 3-5 or 6 x a year.
I probably go through 35 to 50, maybe 60 amps in a day. Close to 55-60% SOC, depending on how much the heater and fan get run at night.
If I go with the 150w panel and a Solar 30, and I set the voltage at the battery to 15.0V for a Vabs. Let's say at start I get 7.5 to 8 amps charging for 5 maybe 6 hours worth with aiming at the sun directly 4x a day, and I am down in Quartzsite in January.
I know RJ had a couple of group 27's and was running 190W to them with 2 panels through the 14.4V RJ special. The T-1275 is more problematic than a pair of group 27's, hence going for the higher voltage, and ultimately higher amps getting the recharging done in the T-1275 deep cycle sweeper battery with a ton of antimony in it.
Going from 6.3 amps to 8.3 should help things along, I would think, a little bit quicker. Adjustable V setting should help also with slightly higher V setting at 15.0v. I know I won't see 100% state of charge, but it would be nice to get it to at or barely above mid 90's SOC daily if at all possible. I don't see the battery getting a little warm, say luke warm, near the end of charging as a bad thing, higher temps tend to create the potential for molecules moving faster and creating more chemical reactivity among the elements involve, in this case, shedding sulfur from lead plates and back into H2SO4, a forced reverse reaction to get the sulfur back in solution, where it will have potential again.
