Interstate Battery MT-47
Thread Starter
Melting Slicks
Joined: Sep 2004
Posts: 3,287
Likes: 1
From: Union City CA
Interstate Battery MT-47
My battery is about 5 years old now and I figure that I would just replace it rather than taking a chance on it.
I have done quite a lot of research and decided on passing on the Optima battery. Some people like them while other people don't but I have found that most people are very happy with their Interstate Battery.
Now here is the problem, On the Interstate website they recommend MT-90/T5 however the MT-47 is also good as a replacement. I can not seem to find anyone who carries the MT-90/T5 however just about all the Interstate Dealers have the MT-47 in stock.
Just wondering if anyone have used the MT-47 and what is your experience with it? Thanks for any feed back.
I just found out from the posts below that different year C6 have different width battery trays. I have a 2006.
I have done quite a lot of research and decided on passing on the Optima battery. Some people like them while other people don't but I have found that most people are very happy with their Interstate Battery.
Now here is the problem, On the Interstate website they recommend MT-90/T5 however the MT-47 is also good as a replacement. I can not seem to find anyone who carries the MT-90/T5 however just about all the Interstate Dealers have the MT-47 in stock.
Just wondering if anyone have used the MT-47 and what is your experience with it? Thanks for any feed back.
I just found out from the posts below that different year C6 have different width battery trays. I have a 2006.
Last edited by csun213; Mar 3, 2011 at 01:21 AM.
Safety Car
Joined: Oct 2003
Posts: 4,024
Likes: 13
From: Loveland CO to Central Coast CA
Recommended battery group depends on the C6 model year.
Big part of the reason is because of the size of the battery tray (there are 2 different sizes). Details & pics: http://forums.corvetteforum.com/c6-t...-c6-coupe.html
Big part of the reason is because of the size of the battery tray (there are 2 different sizes). Details & pics: http://forums.corvetteforum.com/c6-t...-c6-coupe.html
Thread Starter
Melting Slicks
Joined: Sep 2004
Posts: 3,287
Likes: 1
From: Union City CA
Recommended battery group depends on the C6 model year.
Big part of the reason is because of the size of the battery tray (there are 2 different sizes). Details & pics: http://forums.corvetteforum.com/c6-t...-c6-coupe.html
Big part of the reason is because of the size of the battery tray (there are 2 different sizes). Details & pics: http://forums.corvetteforum.com/c6-t...-c6-coupe.html
Thread Starter
Melting Slicks
Joined: Sep 2004
Posts: 3,287
Likes: 1
From: Union City CA
Advanced
Joined: Jun 2011
Posts: 79
Likes: 4
From: Longboat Key Fl
C-6 Interstate Battery
I'm on my 3rd Interstate battery in the past 14 months. I have a 2006 convertible with around 24,000 miles on it. I drive short trips - very little long road usage. When the original equipment battery died after 5 years, I had a new MT 47 battery installed. 13 months later, that battery would not hold a charge. The vendor installed a new MT 47 on May 22, 2011. On June 12, the vehicle failed to start due to the battery. I went to a Chevrolet dealer who told me the battery had a short in it. The original vendor showed the battery as "good" but did install an MT 90 this trip. Looking at the Interstate website - this seems to be the proper battery for my vehicle. All systems checks are good in terms of the electronics. It may be the short trips that is killing my batteries - I find this complaint often. The MT 90 has a larger CCA and bigger reserve capacity.
Melting Slicks
Joined: Apr 2010
Posts: 3,191
Likes: 53
From: Tucson Arizona
I just replaced the original Delco with another Delco 6 year professional series from the dealer and it ran $83.58.
My son is with Mercedes and I can get the Interstate and Optima batteries wholesale direct from Interstate but just have had better luck with the Delco Batteries.
My son is with Mercedes and I can get the Interstate and Optima batteries wholesale direct from Interstate but just have had better luck with the Delco Batteries.
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Every 2027 Corvette Engine Explained
Joe Kucinski
Designer Imagines A Corvette That Looks More Like a Corvette Than the Corvette
Verdad Gallardo
10 Ugly Corvettes That We Still Kinda Love
Joe Kucinski
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer
Brett Foote
10 Things Every Corvette Owner Needs (2026 Edition)
Michael S. Palmer
8 Most "Only Corvette Owners Understand" Quirks and Problems
Pouria Savadkouei
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years
Joe Kucinski
How Much Horsepower Every Corvette Engine "LOST" in 1972
Joe Kucinski
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!
Michael S. Palmer
Advanced
Joined: Jun 2011
Posts: 79
Likes: 4
From: Longboat Key Fl
Replacement Batteries
You may be right about GM products. My dealer tells me that the Delco batteries have a good warranty. The drawback? They charge a fee to do the install swap. Now the Interstate dealer did not charge me a dime. Admittedly, I've wasted a bunch of time going back and forth - so maybe the Delco/Chevrolet charge would have been easier - but for a dealer to charge for a warranty exchange just seems wrong to me.
Advanced
Joined: Jun 2011
Posts: 79
Likes: 4
From: Longboat Key Fl
Oem
The Interstate has a better warranty. I live in Fla. where the climate is brutal on batteries. The 5 year warranty on the Interstate seemed like a better deal - or so it seemed. And I'll say this - so far they've stood behind their product.
Melting Slicks
Joined: Apr 2010
Posts: 3,191
Likes: 53
From: Tucson Arizona
The AC Delco Professional series that I just got from the Chevy dealer for $83.58 comes with a 6 year warranty.
Last edited by RJRSW; Jun 14, 2011 at 06:30 PM.
Advanced
Joined: Jun 2011
Posts: 79
Likes: 4
From: Longboat Key Fl
Delco Battery
I don't know what the cost of the Delco was here. At the time, I did check and the Interstate was less expensive with a better warranty. Like I said, today - the GM service guy told me while the would have replaced a defective battery, I would have had to pay for the service charge.
Racer
Joined: May 2005
Posts: 375
Likes: 8
From: Boise Idaho
I just replaced the original Delco battery in my '06 coup. One day it was fine; the next day the engine wouldn't even turn over. I put in an Optima Series 35. I like AGM batteries and I've had good luck with Optima.
I remember when I was a kid new car batteries would last 5 years at best. Today, 40+ years later batteries seem to last 5 years at best. Battery technology hasn't progressed much (at all?) but the price sure has!
I remember when I was a kid new car batteries would last 5 years at best. Today, 40+ years later batteries seem to last 5 years at best. Battery technology hasn't progressed much (at all?) but the price sure has!
Burning Brakes
Joined: Sep 2008
Posts: 915
Likes: 31
From: Los Angeles CA
I'm on my 3rd Interstate battery in the past 14 months. I have a 2006 convertible with around 24,000 miles on it. I drive short trips - very little long road usage. When the original equipment battery died after 5 years, I had a new MT 47 battery installed. 13 months later, that battery would not hold a charge. The vendor installed a new MT 47 on May 22, 2011. On June 12, the vehicle failed to start due to the battery. I went to a Chevrolet dealer who told me the battery had a short in it. The original vendor showed the battery as "good" but did install an MT 90 this trip. Looking at the Interstate website - this seems to be the proper battery for my vehicle. All systems checks are good in terms of the electronics. It may be the short trips that is killing my batteries - I find this complaint often. The MT 90 has a larger CCA and bigger reserve capacity.
OE outlasted the Interstate. I switched from OE to interstate mtp 86 on 3/2011 and it died 3/2011, 12 months. I wanted to make sure I have no DBS issues so I had it tested and battery couldn't berecharged. It threw a code saying not rechargable bad battery (something along those lines). They gave me a printout and I got a new one on 3/2011 and now in June went to get something from the car and guess what??? Dead. I pulled the 3 month old battery and there was acid leaks on top of the battery. I have left the car in the garage 3-4 weeks at a time and no issues with the oe and no issues. The only reason I stick with Interstate is because I get it replaced and don't feel like shelling out money when I paid for this already. Good luck!
Drifting
Joined: Apr 2000
Posts: 1,655
Likes: 15
From: Jeffersonville In
Cruise-In I Veteran
Cruise-In II Veteran
Cruise-In III Veteran
Sears DieHard Gold, 7 year warranty, 5 years free replacement. Around $100 installed. I have had great experience with them. The factory Delco is also an excellant battery.
Advanced
Joined: Jun 2011
Posts: 79
Likes: 4
From: Longboat Key Fl
Battery Issues
My original post was really to comment that the MT 90 looks to be a stronger battery than the MT 47. I've considered going to a DieHard if this one bites the dust. The problem is, however, causation. If I have the dealer install it - then they've got all the issues. Buying the battery elsewhere (other than the dealer) lets the dealer point at the "other guy" and visa-versa. So, if this one fails, I may just scrap the warranty and try a Delco. If it fails, then the issue is the dealer's trouble shooting talents. They are "on the record" as saying there is not a system issue/problem. So we shall see how it goes.
6th Gear
Joined: Dec 2008
Posts: 6
Likes: 0
MT47 Interstate Battery
I'd say, if the MT47 is a good fit, no interference due to dimensions, etc. and the polarity orientation is the same as the o.e. battery, then it should be a good replacement battery. the MT47 has 10% lower Reserve Capacity (how long u can leave lights on with engine off) and 1.7% lower Cold Cranking Amps (not even noticeable) -- If it fits in the tray, posts are on the correct sides, not too tall, too short, or too wide... use it. @BDHarley07, if you've had bad experiences with Interstate batteries, I'm sorry about that. I've had all positives with them, they do back their products up, & you don't have to fight with the guys at "auto-mart-parts-zone" over any warranty. If it fails you, you get a new one, & you pay the corresponding amount for the time you had the battery. That's what battery warranties should be. Give'm another try. No offense, if you still don't like them, cool... just an opinion.
