What Is A Group 27 Deep Cycle Battery

What Is A Group 27 Deep Cycle Battery

Have you been looking for a suitable battery for your marine boat, reserve vehicle, or solar power unit? Chances are you may have encountered terms like ‘group 24 battery’ or ‘group 27 marine battery,’ among others.

These numbers are very significant as they determine the power, durability, and long-term reliability of the batteries. It is therefore wise to get to know more about them if there is any hope of making the most of these batteries.

For a start, these numbers refer to the Battery Council International or the BCI group number of the batteries. They basically delineate the physical dimensions of the batteries and their cases. Other than this, they also have a bearing on the ampere-hour rating of the batteries.

What Is A Group 27 Deep Cycle Battery?

The group 27 deep cycle marine battery is a kind of which powers a marine vessel during much of its journey. It exudes higher levels of stored energy which turns the motor to propel the vessel on its course.


On the whole, the group 27 batteries are larger in size and also very durable. Moreover, it also derives its power from the lead-acid chemical formulation which is very strong and powerful. A typical group 27 deep cycle battery measures 12-1/2 inches long by 6-3/4 inches wide by 9-3/8 deep. It exudes around 92 ampere-hours of electrical energy.


Store and Provide backup Energy

Owing to their large storage capacity, these batteries can store and release the electrical power much later. This makes them suited for wind power, solar power, and other kinds of applications which require back-up power. You will also find it great for those single buildings and motorhomes.

Marine Applications

These batteries find applicability in a couple of marine uses and needs. These include powering the sailboat and a host of several smaller marine vessels. Its strength lies in the fact that it can produce sufficient power for a longer duration of time. The fact that it may be recharged also makes it all the more outstanding.

Industrial Operations

Some industrial operations and tasks also make use of the group 27 deep cycle marine batteries. These include but not limited to the industrial electrically-propelled forklifts and the floor sweepers. This stems from the portability of the battery and the fact that their power outputs are above ordinary levels.

What Is A Group 24 Deep Cycle Battery?

The group 24 deep cycle battery shares many similarities with the group 27 counterparts. It is however slightly smaller in size and has a lower power capacity. These differences notwithstanding, the battery is able to yield enough power to propel a marine vessel on water for a long duration of time.


A typical group 24 deep cycle marine battery measures 10-3/4 inches long by 6-3/4 inches wide by 9-3/8 inches deep. Their ampere-hour ratings vary between 70 and 85. Owing to their smaller dimensions, they are more compact in size and are hence easily portable.


Powering Instruments

A couple of small instruments may be powered by the group 24 deep cycle marine batteries. These include musical instruments, medical equipment, and computers. If you plan to go camping yet would wish to enjoy unbridled power supply, these are the batteries to look up to. Their extreme portability makes them unbeatable for remote applications.

Propulsion of Smaller Vehicles

Other than powering small instruments, these batteries can also propel some small vehicles such as highway electric vehicles and golf carts. You, therefore, have this particular battery for your use if you have any of these vehicles in your possession. They produce just enough voltage to spare your vehicles from any possible damages.

Provision of Uninterruptible Power Supply

Lastly, these batteries can also function as back-up power suppliers. With regards to this, the batteries can furnish you with uninterruptible power supplies. In this role, the battery can power computers and a host of other related pieces of equipment. You have to engage a qualified and experienced technician to be able to make use of this benefit though.

Final Verdict

From the foregoing discussions, it is quite clear that the group 27 category of batteries is your better bet. The batteries are larger in size and more expensive, granted. However, they last longer and exude plenty of power indeed. You are hence more likely to obtain more value for less by opting for it.

It is therefore in your best interest to give it a topmost priority in your search for the right kind of battery. We are now pretty confident that you will make the most informed purchasing decision with regards to the choice of the right battery.

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What Is A Group 27 Deep Cycle Battery