Adding AGM batteries to a Lance 845.

The only reason i see to install extra batts inside the tc is to keep them warm during winter use.

I dont have an on-board genny in my 845, so my dealer placed my extra battery inside the genny compartment. The genny wires are already in place, we just hooked them up to both the OEM and added battery.

good battery 12v. info incl. solar info

another option is to install the batt in the trucks bed in front of the wheel well.

Here is one other option : Hidden battery box

As narcodog stated, the battery switch,like a marine Perko switch is a great idea. It allows you to separate the batts to use them, or as one of our members taught me, to charge them individually from time to time to balance them for peak performance. That allows you to test the voltage of each battery individually. If one of the batteries becomes weak, it will bring down the good one, therefore you want to monitor both.

My 845 has a raised platform under the dinette where the table pedestal is installed. The carpeted lid has screws which i removed to access the area under that lid. I use it as a compartment for kitchen supplies. An additional hidden space which is a nice find in the 845. If you have that, you might not want to block it .

Bob

I installed Lifeline 6v AGMs last year. Terrific batteries that have been well worth the cost. Full details of my install can be found at the link below:

AGM Upgrade

I have an 845, the battery box will hold a 31 no problem. When I added my second battery I had a rack made that fits under the right rear of the rig. Then ran 4ga marine wire to the battery box. I also used a disconnect so I could separate the two battery's. I would not use the area below the seat. Your giving up some important storage space.

With 120 watts of solar, and an Onan 2500 along with 3 group 29 Deka AGM batteries, we have a comfortable 12 volt power system. I have a two battery compartment, the third battery I installed in the truck bed, forward of the wheel well. Using a quick connect 12 volt plug from Grainger it was wired along side the wiring coming in from the truck.
I use a simple digital 12 volt meter that plugs into a cigar type receptacle. When the voltage drops to 12.2 I start the generator or the truck engine. With a discount, the Deka AGM's were around $120 per, four years ago. The system has been flawless so far, I just clean the connections annually. Two batteries would have prolly been adequate, we often camp on the beach or way off the grid for weeks at a time, we've never had dead batteries in the TC. We run satellite TV,charge laptops, phones and the usual pump, lights etc.

Camper_Jeff_&_Kelli wrote:
I got the SEARS Platinum group 31 AGM batteries and have been happy with them. They also have a 3 year replacement and prorate for a few more years beyond that so good support and plenty of locations.

X2

They are warrantied for 4 years and are prorated for life (as far as I can remember they are prorated for life) after that, so that's a great deal. I have 2 group 34 w/ my 160 watt solar panel on my Lance 1685 TT and it's a win win situation!

The only downside is the price (approx $219.99 each)

WoodGlue

Where and how did you install yours.... any info would be great.

I got the SEARS Platinum group 31 AGM batteries and have been happy with them. They also have a 3 year replacement and prorate for a few more years beyond that so good support and plenty of locations.