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Old 07-04-2015, 05:30 PM   #31
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That's great !
Looks like you will maybe need to charge it every 4-5 days.
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2007 Surveyor SV230
- 200 Watts Solar/MPPT Controller - 230 AH Battery Bank - 600 watt PSW Inverter - (2) 2000 watt Inverter Generators - LED Lighting - Boon Docking 99% of the time.
2009 F150 - 5.4 Litre - Tow Package
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Old 07-04-2015, 07:22 PM   #32
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If it works out I should get 6 nights out of it, it's only running the Cpap at this point so it should be alright
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Old 07-04-2015, 09:28 PM   #33
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Are you using the humidifier/heater on the Cpap? Some of the CPAP's shut the heater and humidifier off when on 12 volt. Without that you are pretty energy thrifty and your marine/ Rv 'deep cycle' will give you a year or two.

Next time you replace your battery find a golf cart place and get a 12 volt Trojan, 150 amp. It will give you a long life and lots of reserve power. I've used marine deep cycle batts for years and they just seem to die after 2-3 years. The Trojans hang on twice as long, which not only cuts the price in half but the pain of replacing in half. What good is saving a few bucks when you have to drive into town and spend that savings on gas.
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Old 07-04-2015, 11:01 PM   #34
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I have the humidifier but don't have it turned , the jumper packs I was using only run 3 days max and only lasted one season. Going by cost I'm trying to wire the Cpap into the trailer supply because when at the cg I have two Trojan t105's supplying the trailer and they're charged with solar so this is I hope temporary . So far the deep cycle has lasted 4 nights and should go two more without charging, we'll see
Don
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Old 07-07-2015, 04:42 PM   #35
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Battery deal

Update, the battery lasted 6 nights altogether, as it stands
I fully charged the battery and used it tuesday night before taking the readings Wednesday morning
The load was a resumed s9 elite cpap that draws 1.08 amps at 12 cm of water column no humidifier
Wed morning voltage was 12.83 volts
Thursday morning voltage 12.77 volts
Saturday morning voltage 12.73 volts
Monday morning voltage 12.66 volts
So as far as I can tell this battery should last at least a week before recharging
If anyone has different results please let me know
Don
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Old 07-10-2015, 12:12 AM   #36
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Good to know, thanks
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