The SUNLIGHT SPA is a VRLA (Valve Regulated Lead Acid) battery series that has been developed as general purpose batteries, designed to provide reliable performance in a wide field of applications. The SUNLIGHT SPA batteries respond to the needs of security systems market, low power UPS, telecommunications, IT applications and emergency power supply. The Valve Regulated Lead Acid (VRLA) battery is a rechargeable battery type with a safety valve, which allows the internal pressure to be released in case of overcharge. This maintenance free battery has no need for topping-up water or electrolyte during the entire service life. The SUNLIGHT SPA batteries features models with capacity up to 28Ah, offering a wide range of dimensions, also been available with different types of terminals and flame retardant cases.
Key Features of SPA series
- High performance
With low internal resistance and efficient discharge characteristics, SPA batteries can be applied to many fields, both in cycle and stand-by use.
- Maintenance free
During the service life, there is no need to check the level of the electrolyte or to add water. The gases produced during electrolysis are almost completely recombined to water (up to 99%) through an effective reaction between hydrogen and oxygen.
- Safety valve design with AGM separator
Excessive gas produced by overcharge or an incorrect charging method is released through the safety valve, which detects rising internal pressure and allows gas to exit and then automatically reseals. The AGM (Absorbent Glass Mat) separator maintains a constant distance between the plates and immobilizes the electrolyte, so that the possibility of acid leakage is minimized.
- Leak and spill proof container
The construction of the SPA batteries with a highly resistant material -standard ABS (UL94 HB) or optionally flame retardant ABS (UL94 V0)- guarantees that no electrolyte leakage will occur from the terminals or case. The sealed construction of the battery allows perfect operation in any position (vertical or horizontal but not completely inverted position).
- Wide temperature range and float service life
SPA batteries operate within a wide range of temperatures. The nominal service life is 3 to 5 years in float / standby applications while operating in optimum temperature of +20ºC to +25ºC.
- Low self-discharge rate
Using a lead / calcium grid alloy, the self–discharge is minimum. The battery can be stored for 9 months under normal conditions (+20ºC to +25ºC) with no permanent effect on the capacity or the expected service life.