Power-Sonic PDC-12350 Deep Cycle Battery
1 Year Warranty
Power-Sonic PDC-12260 Deep Cycle Battery
1 Year Warranty
No Bait and Switch with AtBatt.com
Unlike other companies, AtBatt.com will never substitute your sealed lead acid battery with another brand without your consent. We only sell brand name SLA batteries with the highest safety standards. You will always get the battery that you paid for; we will never bait and switch our customers.
Differences in Battery Types
If you'd like to know more about SLA batteries, here are some terms and features common to this battery type. First, let's start with a common question: what is a VRLA battery? A VLRA is simply an SLA battery, just called by a different name. Let's get into more of the specifics here.
Sealed lead acid batteries are designed to be a general purpose battery that can be used in a wide variety of applications such as toys, consumer level UPS, alarm systems, etc. An SLA battery can provide a large discharge current over a short time period and the life cycle of the battery is 1 to 3 years, depending on use. Capacity is usually calculated at 20HR. These batteries generally have regular-sized plates.
Deep Cycle (EV):
A deep cycle sealed lead acid battery is designed to provide a steady amount of current over a long period of time and is able to drain completely and recover to almost 100 percent. These batteries are designed for electric vehicles, golf carts, wheelchairs, etc. A typical life cycle is 2 years or less depending on depth and frequency of discharge. These batteries generally have thick plates.
High Rate Discharge:
This refers to a design used when a large amount of amps are required in a very short amount of time. These batteries are used primarily where high power is required for a short duration of time (less than 30 minutes). The most common use for high-rate discharge VRLA batteries is high powered UPS applications. The capacity of these batteries is usually calculated at 10HR or lower. These batteries generally have thinner, but more numerous plates.
Long service life is typical in float or cyclic applications. Life expectancy in float service is up to 18 years at 25C (typically 10+ years). Typical applications are communication, stand-by power, security systems and power systems.
What Does Hour Rate (HR) Mean?
All SLA type batteries have capacity rated depending on the amount of amps they can discharge over a certain period of time. General SLA batteries are usually rated at 20HR, meaning their current over a period of 20 hours.
If a battery is rated at 20Ah capacity at 20HR, it means that the battery can discharge 1 amp per hour over that 20 hour period. A High Rate Battery will typically be rated at 10HR or less. So a High Rate Battery that is 20Ah capacity at a 10HR would be able to discharge 2 Amps per hour over a 10-hour period.
Generally, a battery will have more effective capacity if it is discharged slowly and, conversely, the battery will have less effective capacity if it is discharged quickly. For example, if a 20Ah (10HR) rated battery is discharged over a 20 hour period (20HR), the effective capacity could be 23Ah. If the same 20Ah (20HR) battery is discharged over a 5-hour period, then the effective capacity may only be 15Ah�a loss of 25%.
High Rate Batteries are manufactured in a way to maximize quick discharge at the expense of deep cycling and cyclic life. They can discharge high amps in very short periods of time. For example, a 20Ah (10HR) High Rate Battery can discharge 70 amps over a 5-minute period, while a General SLA battery may only be able to do 45 amps.
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