Go Back   Thor Forums > Thor Tech Forums > Maintenance and Repair
Click Here to Login
Reply
 
Thread Tools Display Modes
 
Old 04-17-2017, 03:44 PM   #1
Senior Member
 
Miramar Owner's Avatar
 
Brand: Thor Motor Coach
Model: Miramar 34.4
State: Iowa
Posts: 661
THOR #4488
Adding House Batteries

Does anyone know if I can add 2 batteries to my Miramar or should I replace and buy 4. I can't find markings on the existing batteries so I'm not sure of what to match them with. My RV is a 2016 so the existing batteries are still in good shape. I just need more battery life before kicking in the generator when boon docking.
Thank you.
__________________

__________________
Miramar Owner is offline   Reply With Quote
Old 04-18-2017, 01:58 AM   #2
Senior Member
 
Brand: Still Looking
State: Alabama
Posts: 245
THOR #4160
They are cheap Harris batteries. I would not mix battery types. My recommendation is to replace them with 2 or 4 six volt Trojan 105 or 125 batteries. Better amp hours and reliability.
__________________

__________________
Techn0 is offline   Reply With Quote
Old 04-18-2017, 02:12 AM   #3
Senior Member
 
bigben's Avatar
 
Brand: Thor Motor Coach
Model: Challenger 37TB
State: Kentucky
Posts: 1,024
THOR #1020
Techno is spot on. Just for the heck of it, take a 2 battery flashlight with 2 bad batteries. Add 1 new battery and guess what happens. So you can add 2 additional batteries and then in couple of months add 4 new ones as the new batteries get fried.

Similar to Techno, we have some experience with boondocking and living on house batteries. With a residential fridge, a sat dish and TVs running on batteries at night - you just gotta have a good health bank of batteries.
__________________
US Army Retired - Loving The Road Trip
Challenger 37TB
bigben is offline   Reply With Quote
Old 04-18-2017, 02:55 AM   #4
Senior Member
 
Miramar Owner's Avatar
 
Brand: Thor Motor Coach
Model: Miramar 34.4
State: Iowa
Posts: 661
THOR #4488
You guys both confirm my thinking. The 2 batteries I have are still in good shape so I hate to get rid of them so soon but I don't feel comfortable adding to new batteries. I'll probably wait until they go bad or at least get weaker and then by 4 new ones.
Thank You.
__________________
Miramar Owner is offline   Reply With Quote
Old 04-23-2017, 02:22 PM   #5
Senior Member
 
Brand: Thor Motor Coach
Model: Windsport. 35M
State: New York
Posts: 281
THOR #6199
I was reading the manual for the inverter and it mentions using two banks of batteries with a switch. This would be an option if you had two other deep cell batteries kicking around like I do. You could use one bank of batteries until it got down to around 12 volts them switch over to the other bank of batteries. I bet you would have to recharge them separate. I saw a 4 way switch at autozone in the marine section that might work. This would be cheaper than buying 4 new batteries. Has anyone seen this done?
__________________
Shawn
2017 Windsport 35M
Shawn62 is offline   Reply With Quote
Old 04-23-2017, 04:07 PM   #6
Junior Member
 
Brand: Thor Motor Coach
Model: Challenger 37TB
State: California
Posts: 20
THOR #5906
In our challenger replacing the stock batteries was the first thing we did. If you do a lot of dry camping
Like we do having good batteries is key. Replaced the stock batteries with 4 lifeline 6ct batteries and 320 watt solar system. Works great knowing I have a fridge that relies on battery only power
__________________
rcmark is offline   Reply With Quote
Old 04-23-2017, 04:35 PM   #7
Senior Member
 
SuperD's Avatar
 
Brand: Thor Motor Coach
Model: 2017 Windsport 29M
State: Indiana
Posts: 3,629
THOR #5196
Quote:
Originally Posted by Miramar Owner View Post
Does anyone know if I can add 2 batteries to my Miramar or should I replace and buy 4. I can't find markings on the existing batteries so I'm not sure of what to match them with. My RV is a 2016 so the existing batteries are still in good shape. I just need more battery life before kicking in the generator when boon docking.
Thank you.
Everyone is spot on with their advice! If you are going to add two more batteries you should ditch the originals and put in four matched batteries, you'll have longer life and better service. Only thing I would add is use deep cycle marine batteries since they are made for the task.
__________________
USMC Veteran
FMCA 101070S

Dave & Myra
One day your life will flash before your eyes,
make sure it's worth watching!
SuperD is offline   Reply With Quote
Old 04-24-2017, 12:55 AM   #8
Senior Member
 
Brand: Thor Motor Coach
Model: Gemini 24TX (2017)
State: California
Posts: 1,255
THOR #5821
As already said, do not mix battery types. Depending on where you have to mount them, to avoid maintenance you could consider AGM batteries. They will cost more initially, but you will probably get an additional year out of them, then standard flooded cell batteries. Just a thought, I have done ok with hi capacity, deep cycle batteries, and just was careful to check water in them every couple of months or so. Golf cart shops sometimes have some good deals on those deep cycle batteries, if you have one nearby.
__________________

__________________
Laco is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


» Featured Campgrounds

Reviews provided by

Disclaimer:

This website is not affiliated with or endorsed by Thor Industries or any of its affiliates. This is an independent, unofficial site.




All times are GMT. The time now is 08:41 PM.


Powered by vBulletin® Version 3.8.8
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
Content Relevant URLs by vBSEO 3.6.0 PL2
×