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. 843-1310
Mfr. Part No.FG20721
BrandFiamm
HK$221.08
Each
units
7.2Ah 12V 151 x 65 x 100mm Faston F1 AGM - - 2.4kg - - 3 to 5 Years -20 → +50°C -
RS Stock No. 720-2988
Mfr. Part No.LC-XC1222P
BrandPanasonic
HK$1,240.95
Each
units
22Ah 12V 167 x 76 x 181mm M5 AGM Yes - 6.6kg - Yes - -15 → +50°C -
RS Stock No. 373-0293
Mfr. Part No.6EP1935-6MD11
BrandSiemens
HK$889.74
Each
units
3.2Ah 24V 151 x 190 x 82mm Screw - - UPS 3.2kg - - - +5 → +40°C SITOP USV
RS Stock No. 198-8169
Mfr. Part No.NPL65-12I
BrandYuasa
HK$2,219.36
Each
units
65Ah 12V 174 x 350 x 166mm M6 AGM - - 23kg - - 10 to 12 Years -20 → +60°C -
RS Stock No. 533-9741
Mfr. Part No.G12V42EP
BrandEnersys
HK$2,713.97
Each
units
42Ah 12V 197.4 x 165.9 x 170.7mm M6 Pure Lead Yes - 14.9kg Yes Yes - -40 → +80°C Enersys Genesis
RS Stock No. 707-3424
Mfr. Part No.RSAMP3741
BrandEnersys
HK$4,304.51
Each
units
68Ah 12V 198.6 x 275.6 x 177.5mm SAE Pure Lead Yes - 22.4kg Yes Yes - -40 → +45°C Enersys Odyssey
RS Stock No. 837-0978
BrandRS PRO
HK$821.34
Each
units
26Ah 12V 166 x 175 x 125mm T12 AGM Yes Emergency Lighting 9.4kg - - 3 to 5 Years -15 → +50°C -
RS Stock No. 888-2478
Mfr. Part No.UP-VWA1232P2
BrandPanasonic
HK$303.22
Each
units
6.4Ah 12V 151 x 51 x 100mm Faston F2 AGM - - 2kg Yes - 6 to 9 Years -15 → +50°C -
RS Stock No. 888-2421
Mfr. Part No.LC-R067R2P
BrandPanasonic
HK$192.00
Each
units
7.2Ah 6V 151 x 34 x 100mm Faston F1 AGM - - 1.3kg - - 6 to 9 Years -15 → +50°C -
RS Stock No. 533-9757
Mfr. Part No.RSAMP3732
BrandEnersys
HK$3,806.00
Each
units
70Ah 12V 330.7 x 168.1 x 176mm M6 Pure Lead Yes - 24.3kg Yes Yes - -40 → +80°C Enersys Genesis
RS Stock No. 537-5438
BrandRS PRO
HK$175.15
Each
units
10Ah 6V 151 x 51 x 94mm Faston F1 AGM Yes UPS 1.6kg - - 3 to 5 Years -20 → +60°C -
RS Stock No. 128-7028
Mfr. Part No.NP2.3-12
BrandYuasa
HK$202.78
Each
units
2.3Ah 12V 178 x 34 x 64mm Faston F1 AGM - - 1.1kg - - 3 to 5 Years -20 → +60°C -
RS Stock No. 696-4701
BrandConvac
HK$4,615.33
Each
units
- - - - - - - - - - - - -
RS Stock No. 720-2938
Mfr. Part No.LC-R061R3P
BrandPanasonic
HK$174.88
Each
units
1.3Ah 6V 50 x 24 x 97mm Faston F1 AGM - - 250g - - 6 to 9 Years -15 → +50°C -
RS Stock No. 872-0106
Mfr. Part No.REC80-12
BrandYuasa
HK$3,188.13
Each
units
80Ah 12V 259 x 168 x 212.5mm M6 AGM Yes - 27kg - - - -15 → +50°C -
RS Stock No. 727-0382
BrandRS PRO
HK$136.81
Each
units
7Ah 6V 150 x 34 x 94mm Faston F2 AGM Yes UPS 1.1kg - - 3 to 5 Years -15 → +50°C -
RS Stock No. 720-2953
Mfr. Part No.LC-R122R2PG
BrandPanasonic
HK$348.87
Each
units
2.2Ah 12V 60 x 34 x 177mm Faston F1 AGM - - 800g - - 6 to 9 Years -15 → +50°C -
RS Stock No. 888-2453
Mfr. Part No.LC-P1238APG
BrandPanasonic
HK$1,402.42
Each
units
38Ah 12V 197 x 165 x 175mm M5 AGM - - 12.5kg - - 10 to 12 Years - -
RS Stock No. 888-2447
Mfr. Part No.LC-XD1217PG
BrandPanasonic
HK$780.86
Each
units
17Ah 12V 181 x 76 x 167mm M5 AGM - - 5.9kg - - 10 to 12 Years -15 → +50°C -
RS Stock No. 888-2462
Mfr. Part No.LC-P1242AP
BrandPanasonic
HK$1,558.90
Each
units
42Ah 12V 197 x 165 x 175mm M5 AGM - - 13.5kg Yes - 10 to 12 Years -15 → +50°C -
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