Each battery has a specific AMP hour rating. Most batteries produce 12 Volts DC, so if the load requires more than 12 Volts, this can dictate how many batteries to use and how to wire those batteries. How to wire batteries in either series or parallel and battery selection criteria An enhanced floating life allows long life batteries to be ready for use in high rate, heavy duty applications such as uninterrupted power supply, telecom and marine environments. High rate batteries deliver high power for short periods of time at 50% DOD with a 14-16 year life.įloat mode, also known as standby mode, is maintaining a battery in a charged condition by a long-term, constant voltage at a level sufficient to offset self-discharge. Deep cycle batteries provide continuous power output over long periods of time and can withstand repeated charge/discharge cycles at 80% DOD. Long life batteries are considered a hybrid of deep cycle and high rate batteries with the added benefit of enhanced floating life. When a battery is discharged entirely or past the maximum recommended DOD, the battery life will be shortened. The more discharges and the deeper the discharges, the shorter the battery life.ĭepth of Discharge (DOD): This is the percentage of the battery that has been discharged relative to the battery capacity. When the battery is exposed to temperatures outside of that range, the usable life will be shortened.Ĭycle life: This is the number of charge and discharge cycles of the battery. Temperature: The rated capacity of a battery is based on a narrow temperature range. Three factors can affect the longevity: Temperature, Cycle Life and Depth of Discharge. Valve Regulated Lead Acid (VRLA) batteries have a life expectancy that is based on how they are designed as well as how they are used.
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