Lead Acid Rechargeable Batteries

Lead acid rechargeable batteries are the oldest type of rechargeable battery. Despite having a very low energy-to-weight ratio and a low energy-to-volume ratio, they are able to supply high surge currents, meaning that they are able to meet the power requirements of applications such as storage in back-up power supplies in mobile phone towers. 


What are lead acid rechargeable batteries used for?

Lead acid batteries are widely used if surge current is critical, even if other designs could provide higher energy densities. Large-format lead acid designs are widely used in settings like hospitals, and in stand-alone power systems. Their surge current properties make them attractive for use in motor vehicles to provide the high current required by starter motors.


How do lead acid rechargeable batteries work?

The oxygen in the active material (lead dioxide) reacts with the hydrogen ions to form water, and the lead reacts with sulphuric acid to form lead sulphate. The ions moving through the electrolyte then create the current flow.


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1Ah 6V Leoch - 51 x 42 x 51 UPS AGM - Yes Yes Lead Acid - T1 -15 → +50 °C, 0 → +40 °C
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90Ah 12V Leoch - 306 x 168 x 208mm Emergency Lighting AGM - Yes Yes Lead Acid Yes T6 -15 → +50 °C, 0 → +40 °C
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28Ah 12V Leoch - 164 x 125 x 175 UPS AGM - Yes Yes Lead Acid - T3 -15 → +50 °C, 0 → +40 °C
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65Ah 12V Leoch - 348 x 167 x 178 UPS AGM - Yes Yes Lead Acid - T6 -15 → +50 °C, 0 → +40 °C
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9Ah 12V Leoch - 151 x 65 x 93.5 UPS AGM - Yes Yes Lead Acid - T2 -15 → +50 °C, 0 → +40 °C
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25.8Ah 12V Leoch - 164 x 125 x 172mm Emergency Lighting AGM 10 to 12 Years Yes Yes Lead Acid Yes T12 -20 → +55 °C, 0 → +50 °C
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75Ah 12V Leoch - 260 x 168 x 208 UPS AGM - Yes Yes Lead Acid - T6 -15 → +50 °C, 0 → +40 °C