What are the best 12 volt marine dual-purpose batteries?

If you are looking for the best 12 volt marine battery, the first step is deciding what type of batteries is perfect for your purpose. If you have a small boat and there is no room for starting and deep cycle batteries, it is better to go for marine Dual-Purpose batteries.
For the small boat, this type of batteries is ideal to deliver power for starting the boat’s engine as well as provide smooth power for other electrical equipment in the boat. But what is the good quality, durable marine dual-purpose batteries that matches your needs? This list may help narrow down your choice.
#1 Odyssey 34M-PC1500ST-M TROLLING Thunder Marine Dual Purpose Battery
If you have the limit budget, this may be not ideal battery for you as this product come quite expensive price. However, you will a quality battery that surely worth your money. It is dual purpose battery that means I can be able to power your engine and other electrical equipment in your boat.
This device provides excellent reserve power of 205 minutes with the 100 Ah capacity rate. These power is more than enough for starting small fishing boat with several battery-powered accessories.
One of the most important factor to consider whenever you looking for the battery product to use when you are out on open water is that how good it is running without a drop in voltage and how durable it is even after periods of heavy usage.
What I like about this product is that it comes with a long warranty. It has the 60 days warranty but even after this time, Odyssey will still allow you to give the battery back and provide replacements. The full replacement warranty will last for 3 and 4-year will help you make your decide of purchasing on this product.
There is another great feature is that this battery is very low maintenance. Due to this, you do not need to check the batteries to ensure that it is always in the good condition.
#2 Optima Batteries 8052-161 D31M BlueTop
One more time, if budget is not your problem the I highly recommend the Optima Blue Top dual-purpose battery as it is one of the best high-performance AGM batteries on the market. The out standing point of the Optima over other marine batteries out there is that it is more recharges. As such, it offers better runtime and longer lifespan.
The Optima batteries features good vibration resistant ability even in tough boating conditions, what makes it also very durable. It is designed to be fifteen times more resistant to vibrations, so the batteries will safer and also last for longer.
Thanks to the AGM design, these baterries can be able to store for extended periods of time while do not require much attention, and occasionally charge maintenance. It has the sturdy and secure design, so the battery is spill-proof and can be mounted in any angle on the boat .
Aside from its expensive cost, there is another drawback from this battery is the shipping problems. Sometimes, the shipment was delay so the batteries could be damaged during the shipping process.
#3 Optima Batteries 8040-218 D35 YellowTop Dual Purpose Battery
This is another dual-purpose battery for starting the engine as well as powers the various accessories in your boat. The Optima Batteries 8040-218 D35 Yellow-Top has cold cranking amps rating of 650 and offers reserve power of 98 minutes.
It is made with spiral-cell technology for employs 99.9% lead cells, so you do not to worry about its durability and its effective of saving power
Although the lifespan of batteries mostly depends on the way you handle them, but I have that the number cycles of this battery is almost twice times more than most other batteries. The Optima Batteries 8040-218 D35 Yellow-Top is designed with a thick plastic cover to resist shock.
The Optima Batteries 8040-218 D35 Yellow-Top is also the ideal batteries if you have the small boat and want to save the space. It comes with compact size of 9.38 x 6.75 x 7.69 inches and relatively lightweight with the weight of around 36 lbs, what make it very easy for you to store and mount it on the boat.
#4 Northstar Agm Engine Start Pin
If you are looking for the high-performance dual-purpose batteries, Northstar Agm Engine Start Pin is the great ideal as it offers very high reserve ability, Amp-Hour capacity and 1150 Amp CCA rating for even large outboards.
You will get the batteries that is great for the value as in compare with other products with the same price, Northstar Agm Engine Start Pin tents to recharge much more faster. Just like any AGM batteries, this one requires no maintenance. You do not need to check the water level or cleaning corrosion. North star Agm Engine Start Pin also comes with long time warrantee for about three and four years.