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Old 07-28-2015, 02:45 PM   #15
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Note that lead acid batteries (Interstate brand oem equipment) can supply about 25% of their amp-hours safely. GSM batteries can safely supply about 50% of their amp-hours. The new generation of lithium iron phosphate batteries can safely supply about 80% of their amp-hours capacity.

Solar panels are rated with a number that is not based upon the real world operation. One is lucky to see 75% of the advertised number, thus a 100 watt rated solar panel might put out 75 watts on a perfect day (times the number of hours of sunshine).

The big current draw is the furnace motor at night. We had a 155 watt solar panel dealer installed on the 25FB and it would not recharge the oem batteries during the next day of full sunshine without help from a 2000 watt generator. We did NOT watch television, so only a couple of LEDs were on for a few hours.
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Old 07-28-2015, 02:59 PM   #16
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Note that lead acid batteries (Interstate brand oem equipment) can supply about 25% of their amp-hours safely. GSM batteries can safely supply about 50% of their amp-hours. The new generation of lithium iron phosphate batteries can safely supply about 80% of their amp-hours capacity.
Battery life is determined by overall age and number of cycles at what depth of discharge they go through.

It is generally recommended by most flooded cell lead acid battery makers that a reasonable discharge pattern is to not go below 50% of capacity very often or you will greatly reduce the battery life. AGM batteries may go some below 50% without killing them quickly.

Safely is a word which says danger. There is no danger in discharge of batteries to low numbers, other than to you wallet.
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Old 07-28-2015, 04:16 PM   #17
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Without getting technical about it my 85 watt panel handles everything well. The TV and radio/dvd player are both 12 volt and all lights are LED.
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Old 07-28-2015, 07:29 PM   #18
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Your system would benefit greatly from a better quality solar charge controller like the Blue Sky 2512iX-HV and their iPN PRO remote panel. You will get significantly more amps to your batteries by utilizing their 'solar boost' technology.

Also, you will see much better battery charging with a Magnum MMS-1012 inverter/charger and the ME-RC remote.

And BTW, they are LIFELINE batteries, not Life'time'. :-))

Lew Farber
Lewster - you suggest those two items are particularly suited for my setup with the three 100W GS-100 panels from AM Solar? How about the 'fit' for my 2012 AI - remotes and main units retrofit well? I'll hunt around online for sources, unless you can recommend a particularly helpful dealer (AM Solar was great !)
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Old 07-28-2015, 07:33 PM   #19
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Use them again for the rest of the components that you need.


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Old 07-28-2015, 07:58 PM   #20
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Use them again for the rest of the components that you need.

Lew Farber
I just wandered back to their website and found they sell Magnum and BlueSky - handy!
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Old 07-28-2015, 08:01 PM   #21
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Only the best...... proven stuff!!


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Old 07-29-2015, 10:27 AM   #22
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AM Solar hands down by far. When you get your stuff from them, especially if buying a complete solar kit, you all understand why they are the best. Virtually ZERO guessing. Everything you need, I mean everything. They even take the time to separate all the individual screws into baggies and label them, with little instruction notes.
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Old 07-29-2015, 10:40 AM   #23
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We used AM Solar as the vendor of both or our recent solar system components. When there were questions, there were no run-a-rounds, they had the answers. When an additional solar panel arrived customized by UPS, we had a replacement in a couple of days.

As an early adopter, the only issue we had is the need to drive to their location in Eugene, Oregon to pickup the lithium iron phosphate battery assemblies. They are working on getting that issue resolved.

We planned on a four 100 watt panel solar array and may be able to put a fifth one on the roof of the 23D after converting the factory Winegard fold down bat wing antenna to the WineGard Rayzar automatic antenna. We have a 300 amp-hour lithium battery that will join the Magnum MSH-3012 under the sofa in front of the wheel well. A BlueSky SB3024iL solar charge controller will be installed as well.

As mentioned before, a 100 watt panel rating means a real world number of about 75 watts on a good day. So a 400 watt array could generate 300 watts and a 500 watt array could generate 375 watts. Thus the recovery from using the furnace overnight when boondocking can be done fairly quickly while allowing use of the microwave when needed.
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