What is Group 31 Automotive Battery

The term Group 31 has probably been seen by you, should you ever purchase a heavy-duty battery. However, what is it and why so many commercial vehicles depend on it? To put it briefly, Group 31 (or BCI 31) is a standard battery size, as established by the Battery Council International. In North America, the same battery can be branded as Group 31 and in other parts of the world, the same battery can be branded as BCI 31, but it is of the same dimensions with the same performance. We produce high-quality Group 31 at TOKUSHIMA battery with 12V 100Ah and high cold-cranking amps (CCA) that are ideal in demanding use.

Group 31 vs. BCI 31 – Same Battery, Different Names

The distinction between Group 31 and BCI 31 is one of the misunderstandings. They are not. The common name in the US and Canada is Group 31, whereas BCI 31 is commonly found in international trade and technical documents. They both refer to a battery that is about 13 x 6.8 x 9.4 inches. Group 31 batteries by TOKUSHIMA provide 12V, 100Ah of capacity and high CCA values - commonly 800-1000 CCA with the chemistry (flooded, AGM, or lithium). In a car battery search of heavy vehicles, you will need to find Group 31 or BCI 31 specifications. In the case of a new car battery in a commercial truck, this size is the industry standard.

Wide Applications – From Trucks to Boats to Golf Carts

The Group 31 battery has a fantastic variety of applications: it is used in a wide variety of vehicles due to its strong capacity and high CCA:

Trucks & Semi Trucks: A lot of tractor trailer battery systems employ two or four Group 31 batteries in parallel to provide additional cranking power.

Tractors and Farm Equipment: Group 31 size tractor battery begins a large diesel engine, even in a freezing weather.

Marine Vessels: Ideal to use as a boat battery to activate and house loads. TOKUSHIMA also provides AGM and lithium models which can be used as lithium marine batteries in salt waters.

Golf Carts: Group 31 is commonly the battery size used in golf carts (although 12 volt batteries are frequently GC2 size).

Special Vehicles & RVs: In the case of a 48 volt battery bank, just connect four Group 31 units in series.

You can use Group 31 whether you require a 12v car battery in a heavy pickup or deep cycle battery in solar storage.

Choosing the Best Group 31 Battery for Your Needs

In finding the best car battery brand under Group 31, seek well-defined specifications and construction. TOKUSHIMA Group 31 batteries come in three main chemistries:

Flooded lead-acid: Lowest cost, maintenance needed. The lowest initial cost is check 12 volt battery price - flooded.

AGM (Absorbent Glass Mat): This has no maintenance, vibration free, and is the best to use in battery applications of tractor trailers.

Lithium (LiFePO4): Lightest, longest (up to 10 years) life, and 100 percent usability.

In the case of mobile car battery replacement services, AGM and lithium group 31 batteries are the preferred ones, as they are spill-free and can be installed in any position. And, converting a golf cart to lithium, you can replace several 12 volt golf cart batteries with one Group 31 lithium battery, which saves space and weight.

Pricing, Installation, and Mobile Replacement

The cost of a 12 volt battery Group 31 is variable. A standard flooded unit might cost $150-$250, an AGM $250-$400, and a lithium TOKUSHIMA Group 31 $500-$800. But lithium has 3-5 times longer life than lead-acid, so the longterm value is higher. In the case of mobile car battery replacement, most technicians currently carry Group 31 AGM and lithium since they are not only suitable for semi trucks but also in large RVs and workboats. The type of terminal (top post or stud) and polarity direction should always be checked when trying to install a new car battery. In the case of tractor trailer battery banks, all the batteries should be replaced simultaneously to prevent imbalance. And in electric or hybrid systems using a 48 volt battery, four series of TOKUSHIMA Group 31 lithium batteries are wired in series to provide outstanding service.

Overall, Group 31/BCI 31 is a multipurpose 12V 100Ah high-CCA battery platform employed in trucks, semi trucks, tractors, boats, cargo ships, golf carts and others. Group 31 will probably be your solution when you search a car battery of heavy equipment. TOKUSHIMA, via JOZOKING (TIANJIN) TECHNOLOGY CO., LTD., has Group 31 batteries fully customizable in flooded, AGM, and lithium chemistries. Compare battery price (12 volts) with battery life, and think of battery replacement in mobile cars, as convenient. You may require one tractor battery, or you may require a complete 48 volt battery bank, you can rely on TOKUSHIMA to provide power in Europe, North America and Australia.