Another battery thread

[AndrewHadji]

Ive not been too happy with my optimas. Last night was cold, my dual bat monitor had both batteries around 11.6 (in the red) I have a dual battery tray that was designed to fit two n70s (aussie battery spec) My google foo is lacking trying to find the equivalent. I have the group number of the optimas, but would like to find out if they are the same as n70.

Another way to ask is what size is the stock 70 series battery....

 

[OGBeno]

GROUP 31.

I like Interstates. I have never liked the fancy AGM batteries. Our alternators have a difficult time charging them (that's at least my experience when I spent way too much money on 2 batteries from Deka for my 80 series).

Interstate Batteries Results Page - Interstate Batteries 31-MHD

I run two Interstate 27's and they have not let me down one damn bit. Cold, hot, etc. No issues starting.

 

[Gun Runner 5]

Andrew, I'm running Excide batteries in my 77 Series and they have served me well so far.

 

[jblueridge]

When I was looking intoo this 10 days ago, I read that the batts were Group 27.

The ones that came with my LC were Group 78 Interstates. That's what I replaced them with.
MTP-78DT.
Megatron Plus Car and Truck Batteries | Interstate Batteries -

 

[OGBeno]

When I was looking intoo this 10 days ago, I read that the batts were Group 27.

The ones that came with my LC were Group 78 Interstates. That's what I replaced them with.
MTP-78DT.
Megatron Plus Car and Truck Batteries | Interstate Batteries -

Battery sizes will be different for market, engine, specification, and starting/operating voltage.

 

[John Galt]

The pair of Optimas lasted one winter. I replaced them with CdnTire Nautilus marine batteries and they last about 4 years. Every summer I make sure the fluid levels are topped up and switch them in the circuit.
Marine Batteries | Canadian Tire

An Optima in a 12v vehicle has lasted 6 years so far. Perhaps there is something about two in series that doesn't work well with the 24v charging system.

 

[cruiserfj45]

Costco has been my go to and now they carry interstate.

 

[NM Frontier]

My Optimas crapped out on me at about a year, in mild climate. My new Interstates have already outlasted them by x2, in real winters now. Another plug for the Megatrons.

 

[77cruiser77]

Happy with my North Star. Not cheap but haven't let me down

 

[RhinoRig]

I was happy with Interstate for years. Then a few years back, I bought the mega-extreme-super-platinum-arm-leg-cost-die-hard and regretted it a year later. Interstate always from then on.

I run two Interstate 27's and they have not let me down one damn bit. Cold, hot, etc. No issues starting.

I believe I have a 27 as the ACC battery and slightly larger (31?) for the house main. Purely because of sizing and fear of hood contact.

 

[AndrewHadji]

Thanks folks. Yea

I was happy with Interstate for years. Then a few years back, I bought the mega-extreme-super-platinum-arm-leg-cost-die-hard and regretted it a year later. Interstate always from then on.



I believe I have a 27 as the ACC battery and slightly larger (31?) for the house main. Purely because of sizing and fear of hood contact.

Yes, hood contact, found out the hard way on a previous rig

 

[PNWScooby]

I plan on upgrading to a dual battery setup for help with cold starts. Any recommendations on where to buy the tray and other needed parts to get this done? Plan on going with Interstate batteries. Did you end up getting interstate 27's @AndrewHadji ?