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Subaru battery date code ?

J

JDemaris

Well-known Member
Anybody know how to read the date code on a Subaru-branded battery?

Just picked up a 2002 Subaru Impreza and it has an OEM-type Subaru battery. I'm hoping it's not the original (which would be over 8 years old).
Battery is working fine, but if it's original, I want to replace it before I have trouble, and not after.

Code on it is - 7H15BM9E

One of those numbers - hopefully is the year of production, but different battery companies have different codes. Anybody happen to know? I'm hoping maybe that first number "7" stands for 2007?
 
My wife bought a 2000 Subaru Forester. I have found they are their own strange breed and there is a steep learning curve to understand their foibles. There seems to be no internet forum that supports Subarus with common sense answers.

The battery in her car seemed to be gassing and making a mess under the hood although it still performed OK. I put a new one in just to be safe.

This is the answer to your delemma. Replace the battery with a new one. You have enough equipment that you can use the one you have someplace else, then you will know what you have in the car.
 
Yes, that's where most of my questionable batteries go (in old tractors). Just hate to spend money on something that might not be very old.

I've been working on Subarus since the 70s. My first was a 1969 minivan with a two-cylinder, two-stroke-cycle engine that got over 50 MPG.

Subaru (Fuji) used to make some really neat utilitarian cars. No more. All fancy now and heavily loaded with junk I don't want. Last true 4WD workhorse Subarus were the Loyale and Justys.
After that, all became full-time AWD. I still have two Loyale 4WD wagons with hi and low transfercases.

I found that even the local Subaru dealers don't really know how to work on them or think "out of the box." Try to buy some universal joints sometime for a rear driveshaft and you'll see what I mean. I've replaced many for $15 each, but the dealers only use complete $600 driveshafts. Subaru also makes some of the best small engines in the world, that last longer then Hondas. That's why Wisconsin Engines sold them years back as "Wisconsin Robins."
 
have 2004 sub. Forester w/original battery. Embossed in top of battery is 75D23L w/white print "7M" beside that. Where is your date code located at? Didn't see any on the rim but didn't remove battery from its box.
 
It's on the side, near the top. It's obviously hot-stamped into the plastic. My "Subaru" battery also has a phone # on it for battery "warranty" service. 800-367-1407. That is an Interstate Battery #, so it seems they make the Subaru-branded batteries. I might call and see if they'll tell me anything.

I usually wouldn't make a big deal about a battery, but since the date-code sticker on top never got punched out, I'd like to know the age. It's supposed to be easy if you know the "secret" code.
 
I called the phone # on my Subaru battery. Got Interstate on the line. They make the Subaru batteries. Date code is stamped on top, usually in a corner near a post. Should be four digits and most start with a letter, and then a number. Mine is backwards.

My 7H15 means - made - year 2007 and H is the month of August.

Also found out that when there is a second group of digits - that means a dealer had to recharge the battery before it was sold. Mine has that second code that tells me it was recharged in 2009 before it was sold because it sat on the shelf for a long time.
 
> I've replaced many for $15 each, but the dealers only use complete $600 driveshafts.


I've got a 2000 forester. I know what a subaru dealer will probably charge you, but you can get refurb CV axles for about $50/each at rockauto.com.
 
CV-joint type axles have never been a problem. I was referring to the driveshaft that runs from the transaxle/engine in front - to the rear axles. It is a conventional driveshaft, with NO CV joints. just two, staked in universal joints that Subaru calls "non-replaceable." And, it's not just Subaru. This is getting common now with many newer vehicles.
 
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