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Old 07-14-2015, 08:12 AM   #15
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I'll download the 2016 manual but can you tell us what it says...? The RBM rep told me the batteries had "expanded" and Airstream said battery maintenance was my problem. I was quoted $400 per battery...two batteries...at least $800 out of my own pocket...did I over-react? I've done everything my owners manual and lifeline batteries have told me do. I'm still waiting on a response from AS customer service.
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Old 07-14-2015, 11:56 AM   #16
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I'll download the 2016 manual but can you tell us what it says...? The RBM rep told me the batteries had "expanded" and Airstream said battery maintenance was my problem. I was quoted $400 per battery...two batteries...at least $800 out of my own pocket...did I over-react? I've done everything my owners manual and lifeline batteries have told me do. I'm still waiting on a response from AS customer service.

The 2016 Manual is here:
http://www.airstream.com/wp-content/...Interstate.pdf
I use iBooks to view it on an iPad and have it always available.
Look on page 9-8 for Battery Maintenance:
1) You will notice it no longer tells you NOT to leave it permanently connected to shore power.
2) It attempts to quantify the drain on the coach batteries when they are disconnected.
3) BUT, it still has stupid verbiage in there, such as topping up the (AGM) battery with water!

The conclusion I've drawn from all this is that we all have to learn from our experiences and manage the batteries as best we can, whether we leave it plugged in, whether we leave it in the sun, whether we take it for a drive at least once a week, etc. I drained my batteries twice when the Interstate was new, and got away with it. I won't let that happen again.


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Old 07-14-2015, 04:36 PM   #17
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2016 manual

... and in section 5, page 16, it says:

"When storing your Interstate and leaving the House Batteries in place, it is recommended that the vehicle be plugged into a 110-volt 30 amp shoreline connection for 24-48 hours, every 30 days."

My personal experience is that I take our 2015 AI out 1-2x / month for 3-4 days each. We usually, although not always, have shoreline power where we camp. In between I park it, unplugged, on a storage lot which gets a fair amount of sun per day. I turn off the main switch of course, plus the power antenna and the inverter. It always reads 100% battery when I come back to retrieve it.

I've not left it for 30 days yet, unplugged. That might happen this winter when I store it in Ca, and use it maybe once / month on average. I'll have to figure out what to do then.
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Old 07-14-2015, 05:22 PM   #18
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... and in section 5, page 16, it says:

"When storing your Interstate and leaving the House Batteries in place, it is recommended that the vehicle be plugged into a 110-volt 30 amp shoreline connection for 24-48 hours, every 30 days."

My personal experience is that I take our 2015 AI out 1-2x / month for 3-4 days each. We usually, although not always, have shoreline power where we camp. In between I park it, unplugged, on a storage lot which gets a fair amount of sun per day. I turn off the main switch of course, plus the power antenna and the inverter. It always reads 100% battery when I come back to retrieve it.

I've not left it for 30 days yet, unplugged. That might happen this winter when I store it in Ca, and use it maybe once / month on average. I'll have to figure out what to do then.
Haha - yes it does say that!
If you go by their battery draw figures on page 9-8, you can see the batteries won't last anywhere near 30 days before they need a top-up - more like 4 days!
If you also look at the bottom of 5-16, it says for long-term storage, remove the batteries and use a maintenance charger. But the experts on this forum have assured us that the Magnum is smart enough to do the same thing!
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Old 07-14-2015, 05:39 PM   #19
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If you have a Magnum in your AI any it is properly set for the Lifeline charge profile (AGM 1), you can leave the coach plugged in 24/7/365 and never worry about the batteries receiving the right amount of charge.


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Old 07-14-2015, 10:10 PM   #20
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If leaving for a month or more, why not disconnect one of the battery cables?
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Old 07-15-2015, 09:10 AM   #21
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Easier said then done but isn't that the purpose of the House Battery switch? Lewster, were you being facetious? Still waiting on a response from Airstream. Both RBM and I have called.
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Old 07-15-2015, 09:38 AM   #22
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Mike, did you contact Randy McNeeley? 937-596-6111 X7411 or rmcneeley@airstream.com He's pretty good about responding.
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Old 07-15-2015, 09:41 AM   #23
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Easier said then done but isn't that the purpose of the House Battery switch? Lewster, were you being facetious? Still waiting on a response from Airstream. Both RBM and I have called.
Absolutely not!

Magnum has one of the 'smartest' chargers available and has a specific voltage setting especially for Lifeline batteries. I have many folks that leave their rigs plugged in continually when they have the Magnum/Lifeline combination.

Many of these systems are beyond 5 years of service with the Lifelines that I installed, and several are 10 years out.
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Old 07-15-2015, 01:33 PM   #24
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Lew, "never worry about about the batteries receiving the right amount of charge." It is a bit confusing as to what you are saying.
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Old 07-15-2015, 01:55 PM   #25
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Battery Issue...always need to be plugged in

The Magnum charger needs the temperature sensor to work optimally - something Airstream doesn't add. I'd give Airstream an "F" when it comes to information and design to properly maintain the batteries.

Solar is the answer and I don't understand why Airstream doesn't add more like Roadtrek. There is lots of roof space for solar.


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Old 07-15-2015, 02:42 PM   #26
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Lew, "never worry about about the batteries receiving the right amount of charge." It is a bit confusing as to what you are saying.

Boxster is correct in that Airstream deletes the temperature sensor from their Magnum MMS 1012 orders ( I confirmed this with Magnum).

WITH the temp sensor installed and the Magnum set for the AGM 1 charge profile, the Magnum charging section will keep track of your battery condition: floating most of the time while the batteries are dormant.

Every 4 hours or so, the charger will cycle quickly thru the Bulk and Absorption charge just to keep the electrolyte fresh. It will then go right back to float.

Since the 'AGM 1' setting was created specifically for Lifelines, you can be assured that at 77 deg. F, they will be receiving a 14.3 VDC bulk/absorb charge of proper duration for the size of your battery bank and. 13.2 VDC float charge, as this detail should have been programmed into the remote on installation.

These voltage levels do change, depending on what data the temp sensor sends to the remote and will follow the pre-programmed temperature compensation curves located in the firmware of the remote.

Lifelines can float at their properly temperature compensated level for years without any effect on the charge retention properties.


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Old 07-15-2015, 04:46 PM   #27
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Oh - I forgot to mention I added the temperature sensor to my Magnum charger.


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Old 07-15-2015, 06:03 PM   #28
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One of the things I like about taking my AI to the Mercedes dealer RBM in Atlanta is that they give you a Mercedes loaner car for the duration of the time your AI is in the shop. This time I have a brand new GLA to drive while Airstream fiddles away with my battery issue. Probably costing them $100 per day in rental car expense. It is now one thing I advise those interested in purchasing an AI...where are you going to take it for service and how far away is it from your home?
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