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(B) Varley Red Top 30 Battery, 27AH

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Varley Red Top Batteries are designed specifically for racing use!

Varley Red Top 30 Battery
Capacity27 AH / 550 CA / 450 CCA
Terminals6mm Female (1/4" Ring)
Weight23.4 lbs
Size9.8" L x 3.8" W x 5.7" H
Recommended UseUp to 3.5 liter with alternators:
FF2000, FC, F3, FA, F3000, IndyCars,
IMSA Prototypes, Group C, S2000,
GT & Touring Cars, Ferrari Challenge,
Aussie V8 Supercars, WTCC

If your car is underweight, consider the Red Top 40. It has the same length and width, but it is 2 inches taller and 9 pounds heavier -- with 40% more capacity!

Varley batteries are pricey but they have the highest energy density of just about any battery available. Many race cars manufactured in England have battery compartments specially designed to accept these batteries and nothing else fits properly. They can be used in any position and resist leakage even if the outer casing becomes damaged. These batteries are considered non-hazardous freight and can be shipped by air or ground.

We also offer a matching Battery Mounting Bracket for this battery (Part No. 1177-104) as well as a Premium Battery Mounting Bracket (Part No. 1177-204), each sold separately.

Note: Some other batteries on the market may have similiar dimensions, but beware! They may not be suitable for use in a racing environment. A similar battery currently on the market was designed for use as a backup battery in stationary equipment. The manufacturer even recommends against its use in motor vehicles. DMS/Varley Red Top batteries are specifically engineered for motorsports applications.

Our Technical Tips Section has a page of tips on How to Properly Care for Your DMS/Varley Red Top Racing Battery.

Part No.
Stock Status

Condition: New

In Stock

Great Battery


This battery is the best battery for motorsport application if you are serious about what you do. I have used them in my car and customer cars as well. We tried a different brand half the price and after getting it and trying it, the performance was half the rating of CCA. The price of the Varley is not cheap but well worth it as it also lasts a long time if properly kept. Don't spend money twice go for the sure thing.

Ivan A



Top Battery


Very pricey but very worth it! Best batteries out there!

Old Car Guy

Santa Barbara, CA


Great battery!


I use this battery in an Open Class Subaru rally car. The battery box is built by Prodrive and only fits the Varley Red top 30. I have been using the same battery for over 6 years which is unheard of in a world of Odyssey and other 1 season batteries. It's expensive but a solid battery that will last for years and tolerate deep discharges and fast recharging.

Matt K.

Northwood, NH


(B) Varley Red Top 30 Battery, 27AH

5.0 3