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Kevin8520's avatar
Kevin8520
Explorer
Oct 21, 2015

Trojan L16h-ac batteries - a couple of questions

Hello all!

I have a 2015 Eclipse Iconic 3316 5th wheel toy hauler. This massive beast only came with one deep cycle 12v battery to run the unit. The lights are LED but any short furnace or spot light use drains the battery too fast. I need a better 12v solution as I do a lot of dry camping mainly in the desert. The longest I would be dry camping is 6 days in a row.

I am looking at putting two Trojan L16h-ac 6 volt batteries. They are large and heavy, but I have the room for them. I am open to other suggestions as well. I have a couple of questions:

1) I have a 160 watt solar panel on the roof. Will this solar panel keep these batteries maintained?

2) What is the best way to secure them to the coach? They don't really make a battery box for these batteries as they are 12x7x17" (LxWxH). I was thinking of setting them side by side and running hot water heater straps around them with a bolt/screw at each end OR getting some 1" metal bar stock and bending it as needed. Any other suggestions?

3) Each battery weighs in at 125 lbs. It appears my battery bay will support the weight. Will 250 lbs of weight in one small area cause any adverse effects on the trailer?

Here is a link to the battery in question
http://www.trojanbattery.com/product/l16h-ac/

Here is a link to a PDF comparing this battery to other Trojans
http://www.trojanbattery.com/pdf/TRJN0111_ProdSpecGuide.pdf


Here are a few pictures of my battery bay


  • Hi Don, I don't know the current amp hour rating on the one battery. I will pull it from the battery box and find out asap.

    I would prefer not to add an additional solar panel at the moment if possible. I do have a generator onboard and I do also camp at campgrounds with full hookups. With those two additional power sources do you still feel 275 worth of solar is needed?

    I see you have a hefty battery bank. Admittedly I don't know a ton about solar. Would an additional solar panel connect to the one already on the roof or does it need to be wired down to the charge controller?
  • Hi,

    I'd want at least 275 watts of panels for a 435 amp-hour battery bank.

    You may wish to consider AGM chemistry as they can be installed on their sides.

    What is the current amp-hour capacity?