What Battery Do You Have in Your 355?

I think its time to change the battery in my 355.
What have you found to be the most reliable battery?
Please respond with part number and dimensions. I want to purchase a battery before I take out the old one and swap all at once.

Anyone figure out a way to run a trickle charger without an electrical outlet?

 

Interstate MT-34R is good to go.

With a battery tender it is bulletproof.

Make sure you get the "R" so it lines up with your cables...

My mechanic has not had good luck with the optima's.

Robb
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Unfortunately they DC the 34R. You might have to get a 34.

I'll qualify that by saying I am reasonably sure that is the case.

 

I would only put a sealed battery in mine. Mine has had an Optima for the last 2 years, no issues. I would put a yellow top in as they are much more resilient when it comes to being discharged. When I bought the car it had an Interstate and there was some evidence of corrosion on the battery tray, not sure if it was due to that battery or a previous one and it was nothing major, but for that reason I swapped for the fully sealed Optima I had lying around.

 

I also have an Optima Yellow top. Great Battery.

 

thanks for posting this thread I'm about to buy a new battery probably will go with the optima

 

Interstate.

 

DieHard

 

I have the 1200 amp oddesy, same I use to fire up 13-1 CR big blocks
Its overkill and will go to a light weight one when I get a chance

 

Braille B7548
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What does that weigh? 2 lbs

 

I wish, Tim.

It's their AGM Endurance Series battery and weighs 45 pounds. They sell very lightweight AGM and Lithium batteries for racing but they won't last as long. I only do DE track events so weight isn't a major concern.

Barry

 

Interstate for over 5 years and its like new. Had an Optima and it lasted 4 years. Most batteries are good if you don't let them go dead a half dozen times or more. Battery tenders are a must.

 

I had an Interstate for almost 10 years without an issue. That's with a battery tender on it when I don't plan to drive the car for more than 2 weeks. It finally died 2 years ago, and decided to try a Sears Diehard (Platinum series I think) since it was highly rated. No issues so far. I have an Oddyssey PC-680 on another car (weighs less than a third of a normal battery with similar capacity) but wouldn't recommend that on other than a track car.

No sure what you mean by this question...

 

I have an Interstate in my 348 as well as one other vehicle and they are doing great. Both were in the cars when I bought them and I will probably replace with the same. I have also had good luck with the AutoZone Gold series in my other cars and they have a strong warranty that they honor without problem. When I lived in Phoenix the summer heat was really hard on batteries and a number of times I returned a three or four year old battery and got a third off the replacement no questions asked. As already mentioned, a good tender preferably with the pulse technology is a must for our cars not driven on a regular basis.

 

I'm on my third Interstate 34r.
The only reason I changed the last one was that it was getting older at 6 or 7 years (but it was working fine).

 

I have an Odyssey ER30 (PC950) in the 355
Only 9 kgs, 1/2 of a normal one
No problems after 1 yr

I have a LiFePO4 one in the 348
40Ah capacity, only 5kgs

 

Optima red top in mine...and a tender.

The big knock on Optima's is the difficulty in recharging a discharged battery. The trick is to hook to any good battery in series with the charger...and it charges just fine.

 

My charger (digital Schumacher) has an agm mode that charges it fine. I've had 3 optima and never had to replace one. 2 are still in service and the other went with a car I sold.

 

Exactly. Battery tenders are necessary. Definitely extends the life of a battery.

 

+1

 

Great info on the batteries. It looks like the Interstate is a great way to go. Will the interstate model 34 work in lieu of the 34r?

Agreed a battery tender is a must. My issue is I live in a condo with no electrical outlets nearby and solar isn't an option. Any suggestions?

 

Another Interstate 34R here. Just got it about 2 months ago so they are still available.

 

I took a look down behind the headlight with the hood popped...mine has the interstate standard unit.

 

I've never paid much attention to batteries. When one goes bad I usually just head to NAPA or Sears and buy one that has the right size and ratings, with the longest warrantee. I also don't use a battery tender on my F Cars. I just disconnect the battery when not in use or in storage. So far that has worked pretty well for me. My 308 has a 13 year old Die Hard in it. It has started each spring without the need for charging for the last 13 years after sitting for about 6 months. Will it make it 14? I have only owned my 355 for going on two years but I do the same thing, disconnect the battery when not in use and in storage. No starting problems last spring. It has now been in storage since mid October with the battery disconnected. No tender. For the heck of it I just went out and measure the voltage of its battery. 12.64 V. Considering that a fully charged starter battery has an open circuit voltage of 12.65 V. Seems to be holding the charge just fine.