![]() Vibration will not harm its performance, making this battery perfect for powering your weekend adventures in the backcountry. It has heavy-duty welds and is constructed in a way that allows it to take a few shocks. The best feature of this battery is its vibration resistance. It has plenty of power for almost anything that you could need. ![]() It has a reserve capacity of 150 minutes and can hold 75 amp-hours. This is a perfect choice for an older vehicle or one that is more difficult to start. It has a long initial burst, which means that you get maximum power for a more extended period. It delivers 750 cold-cranking amps, but the way it delivers them is what makes this battery unique. The Delphi MaxStart has excellent cold-cranking amps, but not as many as some of the batteries on this list. It is recommended for high-performance cars, 4 x 4s, off-road vehicles, antique cars, emergency vehicles, and your everyday driver. The advanced AGM design allows for 15% more lead to acid contact than standard flooded batteries. Its design also allows it to pack more plates into a smaller area. It uses pure virgin lead plates rather than a lead alloy. One of the main reasons why we recommend this battery is the technology used by this brand. It comes with a 48-month warranty, and when properly cared for, users report that it can last much longer than that. The Optima RedTop has 145 minutes of reserve capacity and a 74 amp-hour capacity. This battery is a favorite for emergency vehicles, utility vehicles, and situations where starting ability is essential. It can produce 950 cold-cranking amps, and it is the battery that professionals rely on when they need to know the vehicle will start in any weather. The Optima RedTop is known for its superior starting performance in cold weather. Not fully charging a battery can result in poor performance and a reduction in capacity.Technical specifications: Cold Cranking Amps (CCA) Any battery that becomes very hot while charging should be disconnected immediately. These gases are flammable! You cannot replace water in sealed batteries that have been overcharged. Overcharging can cause the safety valves to open and battery gases to escape, causing premature end of life. Always use a voltage regulated battery charger with limits set to the above ratings. (All charge recommendations assume an average room temperature of 77☏, 25☌)Īlways wear safety glasses when working with batteries. When amperage drops below 1 amp, the battery will be close to a full state charge. When using Constant Voltage chargers, amperage will taper down as the battery becomes recharged. Recharge time will vary according to temperature and charger characteristics. Recharge Time: (example assuming 100% discharge – 10.5 volts) This is Optima’s marine range but they are also suited as cranking and auxiliary batteries for any application whether it be a caravan or camper or for your 4x4 blue top power is not just for the water but every application. Want more proof of the superior quality of Optima Batteries? Emergency services such as the Water Police and Naval departments choose Optima to power there marine vessels. So its ready to go for the next season without even needing charging. Optima blue top batteries can maintain there charge for up to 12months providing there is no current draw. They are terminal corrosion free and gas free and will not gas under charge ever. Many batteries when left unused can sulphate up in less than 6 months which can lead to battery failure. You can even mount them upside down or on there side and they are guaranteed to be leak proof. Optima blue top AGM batteries range from 750cca to 900cca with many different terminal configurations and sizes to suit any location. Perfect for either starting or cranking batteries but also a great choice for an auxiliary battery as well. Optima Blue Top patented spiral cell technology enables the Optima Marine series of batteries to withstand vibration most batteries would crumble under. Whether your pounding through the waves heading to the reef or down the creek luring with the Minnkota or maybe even skiing one of Australia’s many rivers or lakes. Vibration is the killer of all batteries. Marine Spiral Cell AGM Dual Purpose Battery (D31M) Optima Blue Top D31M - 12 Volt - 75Ah - 900CCA
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