It measures 10 inches in length, 6.9 inches in width and 7.94 inches in height and weighs 43.5 pounds. Its case is made from polypropylene and it has a C20 capacity of 55Ah, and a CCA of 750 Amp, making it strong and maintenance free. It also has Dual SAE and 5/16-inch stainless steel stud posts and a reserve capacity of 120 minutes at 25Amps, so in case of emergency, you can still reach the shore. It is designed to be used with recreational vehicles, like RVs, or large boats with accessory loads. It comes with a 24-month warranty for defects in material and workmanship from the moment of your purchase, as well.
Durable and time-resistant
Made with the SpiralCell Technology, it will surely offer you performance and power for a long time. The spiral-wound cells are made from two, 99.99% pure lead plates coated in lead oxide for more precision and control, while it has a glass mat that works as a separator. Thus, you can be sure that all critical tolerances, temperatures or humidity are maintained and monitored, for optimal functioning.
Other features
- It charges 3 times faster than other batteries
- It is spill-proof
- Mountable in all positions
- It has optimal starting power, as it has dual-purpose and starting applications available.
- MCA of 870 Ampere
| PROS
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CONS
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- Strong and powerful
- Spill-proof
- Charges 3 times faster than other batteries
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- Some complained about it not lasting long enough
- There were some complaints about its durability
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| VERDICT
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| Overall it is a strong and powerful battery which will help propel your boat faster while giving you the safety and comfort of a well-made power source. Able to be mounted in all positions, you don’t have to worry about what type of motor your boat has. |
It packs 12 volts and has an electrolyte suspension system from AGM, offering a high porosity that will absorb and contain the electrolytes, thus prolonging the battery’s life. Part of the group 27, it provides you with consistency, dependable power and plastic enclosure that will keep it away from vibration and shocks. It has heavy-duty lead-tin alloys which provide an extra margin of performance, regardless of how many times you use it. It has 100Ah for 20 hours capacity, a minimum reserve capacity of 200 minutes and it has 8mm terminal posts included, with an MCA of 800A. It measures 12.1 inches in width, 6.7 inches in depth and 8.2 inches in height and it weighs 68 pounds. It also has a charging current of 7A-30A, a charging voltage of 14.4 to 14.9V and a float voltage of 13.5 to 13.8V.
| PROS
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CONS
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- Sturdy and powerful
- Heavy-duty grids
- Electrolyte suspension system
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- Some complained about it being too heavy
- There were some complaints about it not lasting enough
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| VERDICT
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| A strong, powerful and reliable battery that will allow you to travel by boat to wherever you need or wish to. It has shock absorption which will prevent it from moving around, while thanks to its long reserve capacity it will help you get to shore even in dire situations. |
Mighty Max Battery ML75-12 SLA
3. Mighty Max Battery ML75-12 SLA
A part of the group 24 sealed lead acid, maintenance-free batteries, it has 12V and 75Ah and it has a heavy-duty, calcium-alloy grid that provides exceptional performance and service. It has absorbent glass mat technology, allowing it to be used in enclosed and indoor environments without leaking, and a nut and bolt terminal. It measures 10.24 inches in length, 6.61 inches in width and 8.27 inches in height and it weighs 50.71 pounds. It has a reserve capacity of 175 minutes, requires no additional fluids and its design allows it to be used right out of the box. It is rechargeable, and it is able to be mounted in any position, offering a high performance even in low temperatures. It has a 1-year hassle-free warranty from the moment of your purchase.
| PROS
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CONS
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- Strong, powerful and durable
- Calcium-alloy grid
- AGM technology
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- There were some complaints about it not lasting enough
- Some complained about it taking too long to charge
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| VERDICT
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| A strong battery that will last you for a long time, it not only has a shock- absorbent technology, but it also allows recharge and can be used right out of the box, giving you the freedom of installing it in any position your motor requires. |
Universal Power Group UB121000
4. Universal Power Group UB121000
It measures 16.4 inches in length, 12.8 inches in width and 12.6 inches in height, making it larger than the others. It weighs 60 pounds and it has an SLA/AGM design, with maintenance- free and spill-proof features. It is able to resist shocks, vibrations and it is able to be mounted in any position. Additionally, it packs 12 V and 100Ah, with a deep cycle, coming in three alternatives: 12V, 24V and 48V. It has a charging voltage standby use of 13.6 to 13.8 and a cycle service charging voltage of 14.6 to 14.8V. It has a thick, acid proof black plastic body, able to withstand normal weather conditions, and it has 120 minutes reserve capacity. It has a CCA of 615 and, also, a limited 1-year warranty from the moment of your purchase.
| PROS
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CONS
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- AGM design
- Maintenance free
- Leak-proof
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- It is quite heavy
- Some complained it doesn’t last long
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| VERDICT
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| Providing you with good quality, this deep cycle battery has a thick exterior which will protect it from elements while thanks to its AGM design, you won’t have to worry about its maintenance, as it doesn’t require any type of fluids, like other batteries, do. However, it is a deep cycling battery which will require you to pair it with a starter in order to be able to properly start motors. |
It has 7.7 inches in length, 5 inches in width and 6.6 inches in height and it weighs 25 pounds. However, don’t let yourself be fooled by its light weight, as it packs a powerful 12 V, with a 20 hours capacity of 35AH, an RC of 75 minutes and 6mm terminal posts. It has a CCA of 300 and an MCA of 390 while its charging current is 3A to 15A, and its charging voltage ranges from 14.4 to 14.9V. Additionally, it has a float voltage of 13.5-13.8V and heavy-duty lead-tin alloys grids which provide an extra margin of performance. It has a maintenance-free system, thanks to its AGM design it lasts about 3 to 4 hours fo constant use. It has 30-days money back warranty and a 12-month exchange warranty from the date of your purchase for manufacturer defects.
| PROS
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CONS
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- Maintenance free
- AGM design
- Solid and durable
- Lightweight
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- Some complained about it not lasting long
- There were some complaints about it taking too long to charge
|
| VERDICT
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| Powerful, strong and durable, it requires no maintenance thanks to its AGM design. Lightweight, it is easy to store, transport and carry, and it offers you a high-quality, electricity source for your boat. |
Deep Cycle or Dual Purpose?
There are several features you have to take into account when you want to invest in a durable, time resistant and powerful battery that is able to propel your boat and supply its motor with enough power. Before you decide to buy one, you have to consider what type of motor your boat has and what type of battery it requires. Do you plan on relying only on your battery to start your boat or are you going to use a starter? You might wonder what the difference is, so let’s take a look at it.
Deep Cycle
Trolling motors tend to consume power at a slower rate than other motors, resulting in the batteries powering them being recharged only at the end of the day. These types of batteries have an RC rating – reserve capacity – which indicates how long they can carry the load before complete depletion. The higher the RC, the longer you can use your boat. More powerful than a cranking battery, it can withstand several hundred recharging operations, making it one of the best solutions for bigger boats. However, it should be paired up with a starter, as it cannot start up an engine on its own.
Dual-purpose
As the name implies, it provides you with two features into one: a quick way to start your motor, while it also possesses deep cycling abilities. Although it is able to support both functions, it will not completely substitute a cranking battery for starting your motor and a deep discharge battery for prolonged usage. However, if you don’t have enough space on your boat for more than one battery, or if your boat is too small, it is a great alternative.
Battery Tips
- Never mix batteries – they have to be the same type and the same ‘age’ when you use them.
- Recharge them as soon as you can – if you want to prevent them from decreasing their longevity in the long run, it is best to charge them as soon as they are depleted.
- If your battery requires maintenance, check its fluid level periodically.
- Check for corrosion and the ‘well-being’ of its connectors to ensure its functionality. If the need arises, clean it up with a paste of baking soda and water.
- Store them in a dry and cold climate – hot temperature and moisturized environment can damage it in the long run.
To sum up, while a deep cycle battery is more powerful and it is advised to use one if your boat has enough space and is big enough to accommodate it, a dual-purpose battery can be a great alternative for smaller boats. Thus, you should take into account what type of boat you have and what its requirements are before you decide on investing in a battery.
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