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Old 02-05-2015, 01:05 PM   #15
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Janet and Todd, i had just replaced the chassis batteries about a month ago. i never even thought to check the house batteries. i called enterstate and gave them the number off the house batteries and they said the batteries in my coach are 2005 yr batteries
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Old 02-05-2015, 03:53 PM   #16
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Dennis, you're very lucky your batteries didn't catch fire. They still might. I'd get them changed asap and visually check them each month to make sure they're topped up.
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Old 02-05-2015, 04:21 PM   #17
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If you want to use wet batteries, I would recommend COSTCO as they use Interstate batteries. I put 6 coach batteries in three years ago and they are still going strong. I average about 4 years out my coach batteries. I have used both Interstate and Trojan batteries. The last time I looked at the price of COSTCO, 6 volt golf cart batteries they were about $90.00 each.

Trojans 6 volt golf cart batteries are running around $160.00 each.

COSTCO 6 volt golf cart batteries had the same amp hour rating as the Trojans.

Just information only.
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Old 02-06-2015, 06:43 AM   #18
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Janet and Todd, we just bought the coach in august of 2014 and i was told the house batteries had just been replaced which was not true. which is why didn't pay to much attention to the batteries. interstate did confirm that the batteries are 2005yr
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Old 02-06-2015, 07:59 AM   #19
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Sounds like you have your thumb squarely on the problem! You may get some life back in those batteries but purchasing new ones should make a HUGE difference.
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Old 02-06-2015, 08:39 AM   #20
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Bob Bowers, Thanks. yes, i ordered 8 new interstates, will pick on Monday
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Old 02-11-2015, 04:21 PM   #21
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As stated above bad batteries will hamper, or prevent the HWH system from working properly, so good batteries are a must have. FWIW-AGM and lead-acid both have good and bad sides, so it's a personal choice which you use.


HWH system proper procedure to use.
It (HWH) needs around 100+DC Amps for a millisecond or two to get the motor up to speed, the batteries even if new cannot provide this "quick spurt". So, either one of the following needs to be going on:
1. Plugged into shore power and the battery charger in charging mode or;
2. The generator is running and again the charger is charging the batteries.
Failure to do it this way will burn out a diode on the HWH motherboard, an expensive repair.


All - If equipped with Silverleaf and using the front TV again, the options above apply, but the ignition switch should be in the ACC position (at least mine does) for the HWH system to extend the slides, it will auto level the coach, but I then need to tweak the level a tad bit for the drivers side to keep it level.

Whenever using the HWH system while parked, make sure the battery charger is charging the batteries for the reason listed above that DC Amp draw for the motor. APEX owners especially need to follow this advice, since those coaches use even more power for those operations it appears. May be a weight issue or something, not sure. I don't even operate the smartbeds without the charger being on. Since we have mid-door model, we keep any and all blocks, pads, etc., for the jacks under the step so we don't have to worry about the genset or shore power issue, you can leave the ISL-400 running to open the beds, or the like, but since the bags will just pump back up the engine cannot be running to level the coach and extend the jacks, etc.
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Old 02-12-2015, 10:25 AM   #22
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In the 10 years that I have had my coach I have never been plugged in or had my generator running while I deployed my jacks. My batteries have no problem supplying the amperage needed to operate the jacks. Neither have I had to replace the HWH board. My first set of batteries lasted six years.

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Old 02-12-2015, 11:30 AM   #23
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Much discussion on this topic has been had! The consensus from Engineer Mike was the way I stated above, you have been lucky. I suggest you search HWH issues on this forum to find the original thread. You also may have a coach which was built as a late 03/4 which they called an 05. The issues seem to occur in the coaches that were later than the ones with the new steering box, movable pedals and additional changes made to the electrical/electronic coaches during that transition.
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Old 02-12-2015, 08:17 PM   #24
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HWH System acting up

Old RVr, I have to agree with Ken T, I have an '05 (built Sept '04) and have deployed the jacks and the slides, both hooked to shore power AND not.


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Old 02-13-2015, 11:25 PM   #25
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Ditto with DrDave. For ten years we have been deploying the jacks with and without shore power. Seems to me that if you have just parked the batteries are at peak charge and are more than capable of giving ample amperage to the HWH system.
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Old 02-14-2015, 02:03 PM   #26
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Maybe it's an APEX issue, but I will continue to do it my way and I have never had the diode burn either, so I guess it's what works for you. I know with the residential refer, and 8 house batteries, and a 200A alternator, my batteries go into at least absorbsion and sometimes bulk level of charge once we hook up to shore power. They are AGM's and three years old. The terminals are clean, etc. The apex seems to need more energy.
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Old 02-14-2015, 02:46 PM   #27
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For the 14 years, we have had our Alpine I usually deploy the jacks before connecting to shore power. If we dry camp I deploy the jacks and slides using the batteries with no problem.

We have watch our friends who have Alpines an APEX’s deploy the Jacks and Slides only using battery power when they dry camp.
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Old 02-14-2015, 10:48 PM   #28
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I talked to a guy from HWH today and he said there is no problem using battery power to deploy the jacks and slides provided they are charged up. I can see that using shore power and or the generator will be easier on the batteries.

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