It may be time to replace the single Group 24 battery that came with the TT in 2014 based on the displays on my Xtreme charger. I will get it load checked but the time may have come.
The battery groups I am considering are:
12 Volt Deep Cycle RV & Marine Batteries by BCI Group Number
BCI GROUP NUMBER: 24
DIMENSIONS IN INCHES*: 11.13" 6.60" 9.25" LxWxH
Amp Hours (AH): 80
BCI GROUP NUMBER: 27
DIMENSIONS IN INCHES*: 12.00" 6.63" 9.06" LxWxH
Amp Hours (AH): 90
BCI GROUP NUMBER: 31
DIMENSIONS IN INCHES*: 12.9" 6.75" 9.27" LxWxH
Amp Hours (AH): 125
6 Volt Deep Cycle Batteries by BCI Group Number
CI GROUP NUMBER: GC2
DIMENSIONS IN INCHES*: 10.38" 7.13" 10.88" LxWxH
Amp Hours (AH): 225
Source:
https://www.batterystuff.com/kb/tool...oup-sizes.html
I stopped by our local Costco and found the following options:
It is interesting that Costco claims higher AH on their 12V deep cycle batteries than the competitors.
We have never dry camped with our TT, but with electrical sites getting harder to reserve, it would be beneficial to be able to dry camp from a Friday evening to late Sunday afternoon on occasion. So I am considering going to a two battery set up for more AH in the event we need propane heat. (LED bulbs are already installed.)
If I understand correctly, two Costco 6V CG2 batteries in series would provide 208 AH, weigh ~ 120 lb and cost ~$280 CDN. Whereas two Costco 12V Grp 24 deep cycle batteries in parallel would provide 190 AH, weigh ~90 lbs and cost ~$220 CDN.
Any reason not to go the two 12V Grp 24 DC route vs. the two 6V CG2 route?
Has anyone installed two 6V battery boxes on a 2013 to 2015 Passport 23RB? Any clearance issues with the front wall with the extra 1.5 inch of height?