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 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. 174-8859
BrandRS PRO
$275.12
1 Box of 1
Box(es)
28Ah 12V - 164 x 125 x 175mm T3 AGM Yes UPS 9.5kg - Yes - 0 → +40 °C, -15 → +50 °C -
RS Stock No. 727-0408
BrandRS PRO
$249.86
Each
units
55Ah 12V - 229 x 138 x 205mm T6 AGM Yes UPS 16.5kg - - 3 to 5 Years -15 → +50°C -
RS Stock No. 883-8853
BrandRS PRO
$195.06
Each
units
26Ah 12V - 166 x 175 x 125mm T12 Gel Yes Telecoms 8.7kg - - 10 to 12 Years -20 → +55°C -
RS Stock No. 707-4966
Mfr. Part No.NPW45-12
BrandYuasa
$108.58
Each
units
8.5Ah 12V - 151 x 65 x 94mm Faston F2 AGM - - 2.7kg - Yes 3 to 5 Years -15 → +50°C -
RS Stock No. 872-0080
Mfr. Part No.REC22-12I
BrandYuasa
$159.42
Each
units
22Ah 12V - 181 x 76.2 x 167mm M5 AGM Yes - 6.4kg - - - -15 → +50°C -
RS Stock No. 815-329
Mfr. Part No.NP4-6RS
BrandYuasa
$37.37
Each
units
4Ah 6V - 105.5 x 70 x 47mm Faston F1 AGM - - 870g - - 3 to 5 Years -20 → +60°C -
RS Stock No. 597-841
Mfr. Part No.NP12-12
BrandYuasa
$121.70
Each
units
12Ah 12V - 151 x 98 x 97.5mm Faston F2 AGM - - 4.1kg - - 3 to 5 Years -20 → +60°C -
RS Stock No. 872-0096
Mfr. Part No.REC50-12
BrandYuasa
$389.13
Each
units
50Ah 12V - 197 x 165 x 175mm M5 AGM Yes - 15.3kg - - 6 to 9 Years -15 → +50°C -
RS Stock No. 597-835
Mfr. Part No.NP7-12
BrandYuasa
$60.82
Each
units
7Ah 12V - 151 x 65 x 97.5mm Faston F1 AGM - - 2.7kg - - 3 to 5 Years -20 → +60°C -
RS Stock No. 265-1975
Mfr. Part No.RSAMP3710
BrandEnersys
$88.03
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. 128-7359
Mfr. Part No.NP7-6RS
BrandYuasa
$67.51
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. 872-0106
Mfr. Part No.REC80-12
BrandYuasa
$557.75
Each
units
80Ah 12V - 259 x 168 x 212.5mm M6 AGM Yes - 27kg - - 6 to 9 Years -15 → +50°C -
RS Stock No. 265-1953
Mfr. Part No.RSAMP3707
BrandEnersys
$53.20
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. 200-6505
Mfr. Part No.NP17-12I
BrandYuasa
$203.73
Each
units
17Ah 12V - 167 x 181 x 76mm M5 AGM - - 6.1kg - - 3 to 5 Years -20 → +60°C -
RS Stock No. 814-821
Mfr. Part No.NP2.8-6RS
BrandYuasa
$35.74
Each
units
2.8Ah 6V - 64 x 134 x 34mm Faston F1 AGM - - 570g - - 3 to 5 Years -20 → +60°C -
RS Stock No. 720-2950
Mfr. Part No.LC-R121R3PG
BrandPanasonic
$71.47
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. 888-2440
Mfr. Part No.LC-RA1215P1
BrandPanasonic
$138.13
Each
units
15Ah 12V - 151 x 98 x 100mm Faston F2 AGM - - 4.2kg - - 6 to 9 Years -15 → +50°C -
RS Stock No. 533-9729
Mfr. Part No.RSAMP3727
BrandEnersys
$344.14
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. 320-4508
Mfr. Part No.NPH5-12
BrandYuasa
$91.38
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. 597-863
Mfr. Part No.NP38-12I
BrandYuasa
$361.00
Each
units
38Ah 12V - 197 x 165 x 170mm M5 AGM - - 14.2kg - - 3 to 5 Years -20 → +60°C -
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