Lead Acid Batteries

Lead acid 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 contain a 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 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 Sub Range 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. 597-807
Mfr. Part No.NP1.2-12
BrandYuasa
£16.31
Each
Units
1.2Ah 12V - 97 x 48 x 54.5mm Faston F1 AGM - - 580g - - 3 to 5 Years -20 → +60°C NP
RS Stock No. 200-6505
Mfr. Part No.NP17-12I
BrandYuasa
£73.84
Each
Units
17Ah 12V - 167 x 181 x 76mm M5 AGM - - 6.1kg - - 3 to 5 Years -20 → +60°C NP
RS Stock No. 597-813
Mfr. Part No.NP2.1-12
BrandYuasa
£14.78
Each
Units
2.1Ah 12V - 178 x 34 x 64mm Faston F1 AGM - - 820g - - 3 to 5 Years -20 → +60°C NP
RS Stock No. 614-2469
Mfr. Part No.Y7-12
BrandYuasa
£22.43
Each
Units
7Ah 12V - 98 x 151 x 65mm Tab AGM Yes - 2.7kg - - 3 to 5 Years -15 → +60°C YUCELL
RS Stock No. 720-2966
Mfr. Part No.LC-R127R2PG
BrandPanasonic
£31.13
Each
Units
7.2Ah 12V - 94 x 64.5 x 151mm Faston F1 AGM - - 2.5kg - - 6 to 9 Years -15 → +50°C -
RS Stock No. 669-0482
Mfr. Part No.LC-P1224APG
BrandPanasonic
£108.52
Each
Units
24Ah 12V - 165 x 125 x 175mm M5 AGM - - 8.1kg - - 10 to 12 Years -15 → +50°C -
RS Stock No. 180-9145
Mfr. Part No.NP12-6L
BrandYuasa
£25.49
Each
Units
12Ah 6V - 97.5 x 151 x 50mm Faston F2 AGM - - 2.1kg - - 3 to 5 Years -20 → +60°C NP
RS Stock No. 320-4508
Mfr. Part No.NPH5-12
BrandYuasa
£33.65
Each
Units
5.1Ah 12V - 106 x 90 x 70mm Faston F2 AGM - - 2kg - Yes 3 to 5 Years -20 → +60°C NP
RS Stock No. 614-2009
Mfr. Part No.Y2.1-12
BrandYuasa
£17.53
Each
Units
2.1Ah 12V - 64 x 178 x 34mm Tab AGM - - 900g - - 3 to 5 Years -15 → +60°C YUCELL
RS Stock No. 613-0854
Mfr. Part No.REW45-12
BrandYuasa
£42.83
Each
Units
7.3Ah 12V - 94 x 151 x 65mm Faston F2 AGM - - 2.5kg - Yes 6 to 9 Years -15 → +50°C RE
RS Stock No. 597-784
Mfr. Part No.NP1.2-6RS
BrandYuasa
£15.29
Each
Units
1.2Ah 6V - 97 x 25 x 54.5mm Faston F1 AGM - - 310g - - 3 to 5 Years -20 → +60°C NP
RS Stock No. 843-1354
Mfr. Part No.12FGHL34
BrandFiamm
£27.82
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. 597-857
Mfr. Part No.NP24-12I
BrandYuasa
£83.13
Each
Units
24Ah 12V - 166 x 175 x 125mm M5 AGM - - 9kg - - 3 to 5 Years -20 → +60°C NP
RS Stock No. 128-7028
Mfr. Part No.NP2.3-12
BrandYuasa
£17.84
Each
Units
2.3Ah 12V - 178 x 34 x 64mm Faston F1 AGM - - 1.1kg - - 3 to 5 Years -20 → +60°C NP
RS Stock No. 597-863
Mfr. Part No.NP38-12I
BrandYuasa
£118.42
Each
Units
38Ah 12V - 197 x 165 x 170mm M5 AGM - - 14.2kg - - 3 to 5 Years -20 → +60°C NP
RS Stock No. 815-329
Mfr. Part No.NP4-6RS
BrandYuasa
£15.29
Each
Units
4Ah 6V - 105.5 x 70 x 47mm Faston F1 AGM - - 870g - - 3 to 5 Years -20 → +60°C NP
RS Stock No. 843-1339
Mfr. Part No.FG21803
BrandFiamm
£46.02
Each
Units
18Ah 12V - 181 x 76 x 167mm M5 AGM - - 5.8kg - - 3 to 5 Years -20 → +50°C -
RS Stock No. 720-2950
Mfr. Part No.LC-R121R3PG
BrandPanasonic
£25.56
Each
Units
1.3Ah 12V - 50 x 47.5 x 97mm Faston F1 AGM - - 550g - - 6 to 9 Years -15 → +50°C -
RS Stock No. 843-1310
Mfr. Part No.FG20721
BrandFiamm
£19.80
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. 198-8068
Mfr. Part No.NP4-12
BrandYuasa
£23.45
Each
Units
4Ah 12V - 106 x 90 x 70mm Faston F1 AGM - - 1.8kg - - 3 to 5 Years -20 → +60°C NP
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