Marine Battery Size Chart

When it comes to boating, having a dependable and reliable battery is crucial. Whether it’s for starting the engine or powering accessories, a good marine battery is a must-have. With so many different sizes and types of batteries on the market, it can be overwhelming to choose the right one for your boat. That’s where a marine battery size chart comes in handy.

Marine Battery Size Chart

Group Size Cranking Amps (CA) Marine Cranking Amps (MCA) Amp-hour (Ah) Dimensions (L x W x H) Weight (lbs)
Group Size 24 800 890 58 11.3 x 6.8 x 9.3 61.2
Group Size 27 850 960 65 13.3 x 6.8 x 9.3 68.7
Group Size 31 1100 1230 77 13.8 x 6.8 x 9.4 79.1
Group Size 34M 1100 1240 77 13.8 x 6.8 x 9.4 79.4
Group Size 24M 800 890 58 11.3 x 6.8 x 9.3 61.2
Group Size 24F 800 890 58 11.3 x 6.8 x 9.3 61.2
Group Size 27F 850 960 65 13.3 x 6.8 x 9.3 68.7
Group Size 31F 1100 1230 77 13.8 x 6.8 x 9.4 79.1
Group Size 34MF 1100 1240 77 13.8 x 6.8 x 9.4 79.4

How do you size a marine battery?

Before you can choose the right marine battery, you need to determine what size you need. To do this, you need to consider the following factors:

– The size of your boat
– The number of accessories on board
– The type of accessories you have
– The weather conditions in which you typically boat

Once you’ve considered these factors, you can use a marine battery size chart to determine the right size battery for your boat.

What is a standard size marine battery?

The most common marine battery sizes are Group 24, Group 27, and Group 31. Which one you choose will depend on the factors we mentioned above. Group 24 batteries are smaller and typically have a lower capacity. Group 27 batteries are larger and have a higher capacity. Group 31 batteries are the largest and have the highest capacity.

What is the difference between a Group 24 and Group 27 marine battery?

The main difference between a Group 24 and a Group 27 marine battery is their size and capacity. Group 27 batteries are larger and have a higher capacity than Group 24 batteries. This means they can power more accessories and generally last longer between charges. However, Group 27 batteries are also heavier and more expensive, so it’s important to consider your needs before making a decision.

What are the group numbers for marine batteries?

Marine batteries are categorized by group numbers, which determine their size and capacity. Here are the most common group numbers for marine batteries:

– Group 24: 10.25 x 6.83 x 8.94 inches
– Group 27: 12 x 6.83 x 8.94 inches
– Group 31: 13 x 6.83 x 9.44 inches

It’s important to note that not all manufacturers use the same group numbers, so it’s a good idea to double-check the dimensions of any battery you’re considering.

Conclusion

Choosing the right marine battery is essential to ensuring you have a positive and safe boating experience. By using a marine battery size chart and considering your needs, you can find the best battery for your boat. Whether you need a Group 24, a Group 27, or a Group 31, there’s a battery out there that’s perfect for you.

About the author, Phil Borges

Phil Borges is a battery aficionado. He's written extensively about batteries, and he loves nothing more than discussing the latest innovations in the industry. He has a deep understanding of how batteries work, and he's always on the lookout for new ways to improve their performance.