Sealed Deep Cycle Battery are the sprinters of the battery world. They are designed to put out a lot of power for a short burst. The point usually is to supply the power needed to start something up, like a motor, which then runs on gasoline.
They are not designed to discharge much before being recharged and a deep discharge can hurt the battery's lifespan and performance. This is the type of battery you'll find in a car. Once the motor starts, the alternator begins charging the battery back up to full charge.
However, this isn't the only application for batteries. Sometimes you need batteries that can continuously supply power for long periods of time, such as to run an electric vehicle.
These are deep cycle batteries — the marathon runners of the battery world. Rather than a short burst of lots of power, they supply a lesser amount of power but for a much longer period of time. Here the batteries are used to run the vehicle instead of gasoline.
You may be wondering, however, if both capabilities exist in a single unit. In short, yes, they do, and this is what is known as a dual-purpose battery.
Dual purpose batteries handle both starting and cycling making them an excellent choice when you are working with a small footprint. They deliver powerful cranking amperage for easy starting, and low amp draw service for reliable auxiliary power. A perfect example of this would be RELiON’s HP series of lithium batteries that are designed to handle getting you started and keeping you running.
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