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. 128-7359
Mfr. Part No.NP7-6RS
BrandYuasa
HK$268.38
Each
units
7Ah 6V 151 x 34 x 97.5mm Faston F1 AGM - - 1.3kg - - 3 to 5 Years -20 → +60°C -
RS Stock No. 727-0391
BrandRS PRO
HK$466.30
Each
units
20Ah 12V 181.5 x 77 x 167.5mm T12 AGM Yes UPS 5.8kg - - 3 to 5 Years -15 → +50°C -
RS Stock No. 320-4508
Mfr. Part No.NPH5-12
BrandYuasa
HK$381.18
Each
units
5.1Ah 12V 106 x 90 x 70mm Faston F2 AGM - - 2kg - Yes 3 to 5 Years -20 → +60°C -
RS Stock No. 198-8074
Mfr. Part No.NPL24-12
BrandYuasa
HK$1,116.22
Each
units
24Ah 12V 125 x 166 x 175mm M5 AGM - - 9kg - - 10 to 12 Years -20 → +60°C -
RS Stock No. 537-5422
BrandRS PRO
HK$103.32
Each
units
4Ah 6V 70 x 47 x 100mm Faston F1 AGM Yes UPS 740g - - 3 to 5 Years -20 → +60°C -
RS Stock No. 198-8153
Mfr. Part No.NPL38-12
BrandYuasa
HK$1,472.59
Each
units
38Ah 12V 170 x 197 x 165mm M5 AGM - - 14kg - - 10 to 12 Years -20 → +60°C -
RS Stock No. 720-2935
Mfr. Part No.LC-R064R5P
BrandPanasonic
HK$169.66
Each
units
4.5Ah 6V 102 x 48 x 70mm Faston F1 AGM - - 700g - - 6 to 9 Years -15 → +50°C -
RS Stock No. 180-9145
Mfr. Part No.NP12-6L
BrandYuasa
HK$244.83
Each
units
12Ah 6V 97.5 x 151 x 50mm Faston F2 AGM - - 2.1kg - - 3 to 5 Years -20 → +60°C -
RS Stock No. 872-0096
Mfr. Part No.REC50-12
BrandYuasa
HK$1,691.42
Each
units
50Ah 12V 197 x 165 x 175mm M5 AGM Yes - 15.3kg - - - -15 → +50°C -
RS Stock No. 727-0405
BrandRS PRO
HK$648.70
Each
units
20Ah 12V 181.5 x 77 x 166.5mm T12 AGM Yes Emergency Lighting 6.9kg - - 3 to 5 Years -15 → +50°C -
RS Stock No. 843-1354
Mfr. Part No.12FGHL34
BrandFiamm
HK$373.45
Each
units
8.4Ah 12V 151 x 65 x 100mm Faston F2 AGM Yes - 2.9kg Yes Yes 6 to 9 Years -20 → +50°C -
RS Stock No. 537-5539
BrandRS PRO
HK$1,140.99
Each
units
65Ah 12V 348 x 167 x 178mm T6 AGM Yes UPS 19.2kg - - 3 to 5 Years -20 → +60°C -
RS Stock No. 720-2947
Mfr. Part No.LC-R0612P
BrandPanasonic
HK$388.68
Each
units
12Ah 6V 94 x 50 x 151mm Faston F1 AGM - - 2kg - - 6 to 9 Years -15 → +50°C -
RS Stock No. 720-2969
Mfr. Part No.LC-RA1212PG
BrandPanasonic
HK$617.10
Each
units
12Ah 12V 94 x 98 x 151mm Faston F1 AGM - - 3.9kg - - 6 to 9 Years -15 → +50°C -
RS Stock No. 888-2469
Mfr. Part No.LC-XB12100P
BrandPanasonic
HK$3,350.96
Each
units
100Ah 12V 407 x 173 x 236mm M8 AGM - - 36.5kg - - 10 to 12 Years -15 → +50°C -
RS Stock No. 888-2431
Mfr. Part No.LC-RA1212PG1
BrandPanasonic
HK$608.77
Each
units
12Ah 12V 151 x 98 x 100mm Faston F2 AGM - - 3.9kg - - 6 to 9 Years -15 → +50°C -
RS Stock No. 720-2975
Mfr. Part No.LC-CA1212P
BrandPanasonic
HK$603.24
Each
units
12Ah 12V 94 x 98 x 151mm Faston F1 AGM Yes - 3.8kg - Yes - -15 → +50°C -
RS Stock No. 888-2456
Mfr. Part No.LC-P1220P
BrandPanasonic
HK$924.86
Each
units
20Ah 12V 181 x 76 x 167mm M5 AGM - - 5.8kg Yes - 10 to 12 Years -15 → +50°C -
RS Stock No. 883-8866
BrandRS PRO
HK$2,357.65
Each
units
100Ah 12V 330 x 173 x 212mm T11 Gel Yes Telecoms 31kg - - 10 to 12 Years -20 → +55°C -
RS Stock No. 591-461
Mfr. Part No.RSACP3702
BrandEnersys
HK$141.80
Each
units
2.5Ah 2V 68.1 x 34.3mm Tabs Pure Lead Yes - 180g - Yes - -65 → +80°C Enersys Cyclon
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