RVAmerica.com Forums
RVAmerica ForumsRVAmerica ForumsBulletin BoardBulletin BoardGeneralGeneralflourecent ceiling lights flourecent ceiling lights
Previous Previous
Next Next
New Post
 12/18/2014 6:23 PM
Hi and help. Wow is me. I needed to replace the two (2) coach 6 volt deep cycle batteries so I went to my local Walmart and told the tech I wanted two (2) 6 volt deep cycle batteries for my RV. My son installed the new batteries which turned out to be two (2) 12 volt deep cycle batteries - not 6 volt deep cycle. A quick check of the interior lights turned out to be very, very bright. Plus the fluorescent ceiling lights came on very briefly and went out.

Then I went to Sam's and bought two (2) 6 volt deep cycle batteries. The interior lights with regular type auto bulbs came on just fine but the fluorescent ceiling light bulbs will not come on.

I replaced the fluorescent ceiling light bulbs but no lights came on. I am at a lost and don't know what to do. Any advice will be a big help. Thanks.


Happy RVing to you & yours
New Post
 12/18/2014 7:49 PM
 Modified By MikeDesch  on 12/18/2014 7:51:33 PM


It looks like the 24V power (assuming the batteries were connected in series as were your old 6-volt ones) wiped out the electronic ballast units in your Florescent lights. These units take the 12VDC and internally convert it to a much higher voltage (apx 110v AC) to light up the FL tubes.

You might contact Thinlite (or whomever was the mfgr) and see if you can get replacements.

Otherwise it looks like you need to go get a couple of new FL units.

Sometimes you can fnd these at some of the RV surplus places, but my guess is that your chances are kind of slim.

RVA Dave is our resident technical guru, so hopefully he will drop in and provide better advice.

Cheers and happy travels, Mike www.backroadtravelers.com
New Post
 12/18/2014 11:55 PM
 Modified By RVA  on 12/19/2014 2:22:08 PM

Rvtravelerpa - If the higher voltage damaged your fluorescents, then I'd follow Mike's advice. But, first I'd check every 12v fuse you can find. It's possible they blew before any serious damage was done. I'd also check every other 12v device in your coach for damage. This could include your water pump, TV, and smoke and LP detectors, if they're hard wired. It's probably too late now, but you could have used the 12v batteries instead of replacing them with 6v batteries if you'd just connected them in parallel (pos to pos and neg to neg). Good luck - Dave

New Post
 12/26/2014 7:39 AM
if you have not fixed the problem yet and it was not any fuses that got blown, and you determine that the ballast in the flouresents are bad you can buy leds that replace the tubes in your fixtures. you do have to rewire around the ballast, but they are not much more $ then a new flouresent fixture. I bought mine from a dealer in Ocala, Fl. just make sure you get the ones to fit the thin-lite fixture and not just a roll of led lights.

Previous Previous
Next Next
RVAmerica ForumsRVAmerica ForumsBulletin BoardBulletin BoardGeneralGeneralflourecent ceiling lights flourecent ceiling lights

Horizon Block
Progressive Insurance