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.

These sealed lead acid batteries have many used in the today's world. They come in a wide range of sizes, typically with voltages of 6V to 12V. Some typical uses are:

Emergency Lights
Uninterruptible power supplies (UPS)
Alarm Systems
Communication Systems
GEL Vs AGM Lead Acid Batteries

AGM (Absorbed Glass Mat)

These batteries contain only enough liquid to keep the specially designed glass mat wet. The glass mat is made to wick the battery electrolytes between the battery plates. If the AGM battery is broken no free liquid leaks out.

AGM batteries are preferred when a large amount of amps are required. The life expectancy remains excellent in most cases, if they are not discharged more than 60% between recharges and/or recharged fully every 3-6 months.

Gel Cell Batteries

These batteries contains silica type gel, which is a thick paste like material. It allows the electrons to flow between plates, but will not leak in a gel battery if the case is broken.
Gel Cell Batteries don't offer the same power capacity as do the same physical size as AGM batteries. Gel cell batteries excel in slow discharge rates and slightly higher operating temperatures and with excellent deep cycle capability. Recharging these batteries must be done correctly or it will suffer a premature failure."



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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Description Price Capacity Nominal Voltage Dimensions Terminal Type Construction Designed for Cyclic Application Application Weight Flame Resistant Designed High Rate Application Eurobat Classification Operating Temperature Range Brand Range
RS Stock No. 888-2459
Mfr. Part No.LC-P1228AP
BrandPanasonic
HK$1,072.12
Each
units
28Ah 12V 165 x 125 x 175mm M5 AGM - - 9.4kg Yes - 10 to 12 Years -15 → +50°C -
RS Stock No. 150-1560
BrandRS PRO
HK$342.90
Each
units
12Ah 12V 151 x 98 x 95mm T2 AGM Yes UPS 3.5kg Yes - 3 to 5 Years -15 → +50°C -
RS Stock No. 883-8869
BrandRS PRO
HK$1,638.22
Each
units
60Ah 12V 325 x167 x 174mm T6 Gel Yes Telecoms 21.5kg - - 10 to 12 Years -20 → +55°C -
RS Stock No. 174-8855
BrandRS PRO
HK$77.06
1 Box of 1
Box(es)
1Ah 6V 51 x 42 x 51mm T1 AGM Yes UPS 250g - Yes - -15 → +50 °C, 0 → +40 °C -
RS Stock No. 735-0349
BrandBrevetti
HK$10,794.64
Each
units
- - - - - - - - - - - - -
RS Stock No. 265-1975
Mfr. Part No.RSAMP3710
BrandEnersys
HK$360.36
Each
units
8Ah 6V 101.6 x 139.2 x 53.8mm Tabs Pure Lead Yes - 1.7kg - Yes - -40 → +40°C EnerSys Monobloc
RS Stock No. 174-8863
BrandRS PRO
HK$1,017.06
1 Box of 1
Box(es)
25.8Ah 12V 164 x 125 x 172mm T12 AGM Yes Emergency Lighting 7.9kg Yes Yes 10 to 12 Years -20 → +55 °C, 0 → +50 °C -
RS Stock No. 174-8862
BrandRS PRO
HK$2,909.74
1 Box of 1
Box(es)
90Ah 12V 306 x 168 x 208mm T6 AGM Yes Emergency Lighting 27.5kg Yes Yes - -15 → +50 °C, 0 → +40 °C -
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