flickering lights

[gkcs]

we have 2007 27FB Safari. Lately when plugged in at a campsite the lights will sometimes flicker and /or dim. If we have a ceiling fan going it drops in speed a bit if more lights are turned on. Occasionally we here a humming or whistling sound from the inverter. Turning the switch to store from use stops the flickering but the lights are dimmer overall. Any idea what would cause this? Do I need new batteries? They are now pushing 6 years old, not sure how long they usually last. Any insight would be appreciated. Thanks.

[idroba]

In any event you most likely need at least new batteries. 6 years is pretty darn good life for them. Now, the converter/charger may have issues also, if it is flickering and making noise. It is working some, or the lights would not be operating at a brighter level at times, then dropping to a lower level. My guess is that it has become erratic in operation but can't guess if that is due to week batteries or not.

So, first new batteries, then if it still is happening, a new converter/charger is in order. If you do that, go the newer 3 stage charger route, a very worthwhile upgrade in any event.

Oh, if you have not done so, check the connections to your battery first, be sure they are clean and bright.

[Westfalia]

No question, new batteries are needed before any more troubleshooting is to take place.
Now is also a good time to look into a new converter to properly charge those new batteries. Not required, but recommended.

[DKB_SATX]

I agree with the previous statements that new batteries may be in order, but one particular part of your problem description stands out. "Turning the switch to store from use stops the flicker but lights are dimmer overall." (emphasis mine)

I think that when it's working at its rated output, the converter should be able to carry the lights at a brighter level than the battery, so if switching out the batteries makes any visible difference it should be dimmer with the batteries in "use" (because the converter is devoting a chunk of its available output to charging the batteries.)

The positive part of this is that if you have your original Parallax converter, upgrading to a 3-stage converter will be a big improvement for you. The Progressive Dynamics upgrade module that fits into existing power centers on the modern trailers (I'm assuming that's what you have now) run about $200.

[gkcs]

Yes it is a 2007 so that is fairly modern. I guess I will try the batteries first. Any recommendations of where to get them? Wal-Mart? Auto part stores? It installing the converter simple or a dealer item? Thanks.

[BAB]

If you go for new batteries, put in an Iota DL 55 converter/charger at the same time. This is a very easy changeover from the stock unit and you'll be floating those new batteries once they are charged. This will do a whole lot for better battery life.

[Westfalia]

It made have been made in 2007 but Airstream was still using 80's technology when it came to converters. I too upgraded to an IOTA-55 and couldn't be happier. I have boiled and sulfated too many batteries in the past.

Easy is a relative term. It can be easy but that depends on your level of wiring expertise.

I say start with new batteries, from WalMart is fine since they are cheap and have a good warranty, and don't over charge them with the stock converter.