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Battery Authority Blog | Interstate, Car and Marine Batteries Reviews

Benefits of Buying an Interstate Marine Battery at Costco

If there is a better pairing in terms of a partnership, Interstate batteries and Costco outlets are most certainly one of them. Are there advantages in buying your Interstate marine battery Costco-style? – and you will want to read this piece to get to know the breakdown.

All Right – Just How Much Is An Interstate Marine Battery At Costco?

When it comes to Costco, you can pretty much expect some aspect of a trade-off—as with just about any battery outsourcing retailer (like a Batteries Plus or even a Walmart).

And, in truth, this can be quite a tricky thing when it comes to the source of these batteries (marine batteries or otherwise) with a brand like Interstate, and an outlet outsources like Costco (of which sells primarily Interstate batteries in just about all categories).

With that in reference, it is essential to point out that in general, the Costco outlets will sell Interstate marine batteries and other batteries at a lower price range than the source brand of Interstate (keep this in mind).

Costco is not a producer, after all, thus relying upon both the branding power and manufacturing of Interstate batteries—it is an outsource (Costco) versus the source (Interstate).

So, it makes sense that the batteries you will receive at a local Costco will be lower in “price” (or significantly depending on the country and the demographic), but how much more economical to be specific? – here are some data aspects to consider:

Case #1 – Interstate

Interstate batteries, to be more appropriate, is a consistently high performer within the comparison and chart rankings along with other battery brands and products—and they continue to be that frontrunner in the future.

– It makes sense then, that Interstate batteries (for all their worth) offer up a hefty (subjectively speaking, here) price for most of their cells—their deep cycle batteries and dual-purpose batteries, to be much more specific.
– It is also important to note that these starting batteries, deep cycle batteries, and dual-purpose batteries, belong within the “marine” battery category, but this is more or less appropriate for their dual-purpose or deep cycle batteries.
– Now then, first off, their starter or starting batteries are arguably and considerably a bit on the lower end of the performance in comparison to their deep cycle batteries or dual-purpose batteries, with their “starting starters” range from anywhere from 99 – 145 by way of dollars.
– For their deep cycle batteries, it offers a (mid?) range price for their cells, which spans around anywhere from 119 – 293 by way of dollars (their SRM series)—considerably increase in range in comparison to their “starters.”
– Last but not least (definitely), their dual-purpose batteries rank probably the highest in terms of the price range (DP AGM series in notable mention) which is anywhere around 99 – 353 (!) by way of dollars—yikes, for some.

Case #1 – Costco

– Once again, since Costco primarily sells Interstate batteries, it stands to reason that their prices (for all battery function or variation categories) are the same.
– Be that as it may, Costco prices on a broader scale of comparison usually start around as low as 70 dollars and can go up to as much as 120 to 150 dollars, in terms of their fairly mid-expensive SRM series (deep cycle battery).

So, as far as “prices” are of concern, you can save more when it comes to buying your Interstate marine batteries (or other battery category products) at a Costco—especially if doing so is a much more convenient option.

Of course, you may also want to consider two conditions that are either “beneficial” or “not” when purchasing over there:

1. Costco purchasers can negotiate and avail of different options (and not just on “sales days”) that can be beneficial for you, especially if your branch offers some promotion or membership.
2. Costco purchases, however, will contain one major problem for many who possess experience with buying high-quality batteries, and that is a considerably “shorter” warranty program or date than getting from the source location (since it is an outsource, after all—can not blame them here).

Other than the downside of a much lower warranty, it is a good investment if you are into convenience and love the brand they are outsourcing.

Are The Battery Products At Costco “The Same” (Quality) As A Premium Interstate Battery?


This issue is (legitimately) a proper question an one that too often can go into murky waters for those who long for higher performance while containing a lower price tag—rare are both together, more often than not (it seems).

On the plus side, the “specs” on a standard marine deep cycle battery at Interstate (the SRM series) will be roughly the same in terms of overall features and properties, which is neat for many consumers who are fans.

Regardless, “specs” matter when it comes to marine deep cycle batteries, and you will want to look out for these attributes to get to the bottom line of things:

1. CCA OR MCA (cold or marine cranking amperage): 600 – 750 (or as high as 840)
2. R-C (reserves of capacity): 120 – 160 (or higher if you can muster it)
You can count on knowing “the specs” for comparing a product—on the general level, anyway.

But, quality-wise? – that will take more than just numbers on a label to determine that.

Remember that snippet on shorter warranty when it comes to Interstate batteries at a Costco? – that is a great indicator.

Batteries that are in the placement of the store possess shorter warranties because:

– They are not the original manufacturing brand.
– They possess cells that are near their date of “peak performance” (could the reason for lower prices).
– They possess batteries that are not in “good condition” (which is unlikely, but it all depends on the store).

These are some points to consider for “quality” before you make your purchase, folks.

Does Costco Implement—Or Do—Battery Installations?

The answer to this is a “no”—nope!

And, most likely, this will not be the case for many battery or product outsourcing outlets shortly—for lack of a better term, it is a costly expense on their part which may not produce a favorable outcome than just selling batteries.

Considering your Interstate marine battery Costco options should not be in hindrance, however, since this applies to just about any outlet—with exceptions, of course.