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. 591-461
Mfr. Part No.RSACP3702
BrandEnersys
£11.40
Each
Units
2.5Ah 2V 68.1 x 34.3mm Tabs Pure Lead Yes - 180g - Yes - -65 → +80°C Enersys Cyclon
RS Stock No. 533-9729
Mfr. Part No.RSAMP3727
BrandEnersys
£156.10
Each
Units
16Ah 12V 181.6 x 76.2 x 167.9mm M6 Pure Lead Yes - 6.1kg Yes Yes - -40 → +80°C Enersys Genesis
RS Stock No. 533-9735
Mfr. Part No.RSAMP3749
BrandEnersys
£233.63
Each
Units
26Ah 12V 166.9 x 175.8 x 126mm M6 Pure Lead Yes - 10.9kg Yes Yes - -40 → +80°C Enersys Genesis
RS Stock No. 707-3465
Mfr. Part No.RSAMP3715
BrandEnersys
£340.99
Each
Units
38Ah 12V 206 x 250 x 97mm M6 Pure Lead Yes - 13.6kg Yes Yes 12 Years Plus -40 → +50°C Enersys PowerSafe
RS Stock No. 265-1953
Mfr. Part No.RSAMP3707
BrandEnersys
£22.10
Each
Units
2.5Ah 6V 69.9 x 113.8 x 46mm Tabs Pure Lead Yes - 540g - Yes - -40 → +40°C EnerSys Monobloc
RS Stock No. 707-3459
Mfr. Part No.RSAMP3717
BrandEnersys
£317.73
Each
Units
14Ah 12V 140 x 200 x 77mm M6 Pure Lead Yes - 5.4kg Yes Yes 12 Years Plus -40 → +50°C Enersys PowerSafe
RS Stock No. 707-3434
Mfr. Part No.RSAMP3780
BrandEnersys
£508.88
Each
Units
100Ah 12V 238.8 x 330.2 x 172.7mm SAE Pure Lead Yes - 35.3kg Yes Yes - -40 → +45°C Enersys Odyssey
RS Stock No. 265-1975
Mfr. Part No.RSAMP3710
BrandEnersys
£38.50
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. 707-3456
Mfr. Part No.RSAMP3714
BrandEnersys
£302.46
Each
Units
26Ah 12V 156 x 250 x 97mm M6 Pure Lead Yes - 8.9kg Yes Yes 12 Years Plus -40 → +50°C Enersys PowerSafe
RS Stock No. 707-3468
Mfr. Part No.RSAMP3718
BrandEnersys
£390.02
Each
Units
51Ah 12V 220 x 121 x 260mm M6 Pure Lead Yes - 18.6kg Yes Yes 12 Years Plus -40 → +50°C Enersys PowerSafe
RS Stock No. 707-3446
Mfr. Part No.RSAMP3716
BrandEnersys
£237.13
Each
Units
7Ah 12V 101 x 138 x 86mm M4 Pure Lead Yes - 3kg Yes Yes 12 Years Plus -40 → +50°C Enersys PowerSafe
RS Stock No. 265-1947
Mfr. Part No.RSACP3706
BrandEnersys
£17.20
Each
Units
8Ah 2V 106.7 x 44.5mm Tabs Pure Lead Yes - 550g - Yes - -65 → +80°C Enersys Cyclon
RS Stock No. 533-9741
Mfr. Part No.G12V42EP
BrandEnersys
£269.80
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. 707-3415
Mfr. Part No.RSAMP3738
BrandEnersys
£184.50
Each
Units
16Ah 12V 169.4 x 181.5 x 76.3mm M6 Pure Lead Yes - 7kg Yes Yes - -40 → +45°C Enersys Odyssey
RS Stock No. 707-3399
Mfr. Part No.RSAMP3736
BrandEnersys
£174.60
Each
Units
13Ah 12V 131.1 x 177.8 x 85.9mm M6 Pure Lead Yes - 5.2kg Yes Yes - -40 → +45°C Enersys Odyssey
RS Stock No. 707-3462
Mfr. Part No.RSAMP3735
BrandEnersys
£514.00
Each
Units
110Ah 6V 208 x 200 x 239mm M8 Pure Lead Yes - 20kg Yes Yes 12 Years Plus -40 → +50°C Enersys PowerSafe
RS Stock No. 707-3412
Mfr. Part No.RSAMP3739
BrandEnersys
£250.90
Each
Units
28Ah 12V 128 x 168.6 x 179mm M6 Pure Lead Yes - 11.8kg Yes Yes - -40 → +45°C Enersys Odyssey
RS Stock No. 265-1931
Mfr. Part No.RSACP3705
BrandEnersys
£14.40
Each
Units
4.5Ah 2V 102.9 x 34.3mm Tabs Pure Lead Yes - 270g - Yes - -65 → +80°C Enersys Cyclon
RS Stock No. 784-5995
Mfr. Part No.RSAMP37103
BrandEnersys
£414.10
Each
Units
70Ah 12V 278 x 175 x 190mm Posts Pure Lead Yes - 20.7kg Yes Yes - -40 → +40°C Enersys Odyssey
RS Stock No. 784-5998
Mfr. Part No.RSAMP37104
BrandEnersys
£454.40
Each
Units
95Ah 12V 353 x 175 x 190mm Posts Pure Lead Yes - 27.4kg Yes Yes - -40 → +40°C Enersys Odyssey