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. 843-1323
Mfr. Part No.FG22703
BrandFiamm
$138.29
Each
units
27Ah 12V - 166 x 175 x 125mm M5 AGM - - 9kg - - 3 to 5 Years -20 → +50°C -
RS Stock No. 511-3460
Mfr. Part No.RE7-12L
BrandYuasa
$107.12
Each
units
7Ah 12V - 94 x 151 x 65mm Faston F2 AGM - - 2.8kg - - 6 to 9 Years -15 → +50°C -
RS Stock No. 720-2931
Mfr. Part No.LC-R063R4P
BrandPanasonic
$59.66
Each
units
3.4Ah 6V - 60 x 34 x 134mm Faston F1 AGM - - 600g - - 6 to 9 Years -15 → +50°C -
New
RS Stock No. 189-1573
Mfr. Part No.12FGH50
BrandFiamm
$105.60
Each
units
12Ah 12V FGH 151 x 98 x 100mm - VRLA AGM Yes - 4.2kg Yes Yes 3 to 5 Years Maximum of +25°C -
RS Stock No. 843-1342
Mfr. Part No.FG10381
BrandFiamm
$18.93
Each
units
3.8Ah 6V - 66 x 33 x 125mm Faston F1 AGM - - 600g - - 3 to 5 Years -20 → +50°C -
RS Stock No. 532-9772
Mfr. Part No.NP1.2-12FR
BrandYuasa
$44.40
Each
units
1.2Ah 12V - 54.5 x 97 x 48mm Faston F2 AGM - - 580g Yes - 3 to 5 Years -20 → +60°C -
New
RS Stock No. 189-1572
Mfr. Part No.12FGH36
BrandFiamm
$65.50
Each
units
9Ah 12V FGH 151 x 65 x 95mm - VRLA AGM Yes - 2.7 (Typ.)kg Yes - 3 to 5 Years Maximum of +25°C -
RS Stock No. 707-3412
Mfr. Part No.RSAMP3739
BrandEnersys
$392.49
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. 707-3465
Mfr. Part No.RSAMP3715
BrandEnersys
$512.41
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. 888-2447
Mfr. Part No.LC-XD1217PG
BrandPanasonic
$150.53
Each
units
17Ah 12V - 181 x 76 x 167mm M5 AGM - - 5.9kg - - 10 to 12 Years -15 → +50°C -
RS Stock No. 843-1345
Mfr. Part No.FGC22703
BrandFiamm
$165.53
Each
units
27Ah 12V - 166 x 175 x 125mm M5 AGM - - 8.1kg - - 3 to 5 Years -20 → +50°C -
RS Stock No. 128-7393
Mfr. Part No.NP65-12I
BrandYuasa
$565.70
Each
units
65Ah 12V - 350 x 166 x 174mm M6 AGM - - 23kg - - 3 to 5 Years -20 → +60°C -
New
RS Stock No. 187-5724
Mfr. Part No.Y0.8-12
BrandYucell
$35.26
Each
units
8Ah 12V - 96 x 62 x 25mm Plug In - - - 340g - - - - -
RS Stock No. 533-9757
Mfr. Part No.RSAMP3732
BrandEnersys
$860.07
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. 843-1308
Mfr. Part No.FG20201
BrandFiamm
$27.47
Each
units
2Ah 12V - 178 x 35 x 67mm Faston F1 AGM - - 800g - - 3 to 5 Years -20 → +50°C -
RS Stock No. 533-9741
Mfr. Part No.G12V42EP
BrandEnersys
$589.70
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
New
RS Stock No. 189-1574
Mfr. Part No.12FGH65
BrandFiamm
$159.00
Each
units
18Ah 12V FGH 181 x 76 x 167mm - VRLA AGM Yes - 6.2kg Yes Yes 3 to 5 Years Maximum of +25°C -
New
RS Stock No. 189-1575
Mfr. Part No.12FGHL28
BrandFiamm
$64.80
Each
units
7.2Ah 12V FGHL 151 x 65 x 95mm - VRLA AGM Yes - 2.7 (Typ.)kg Yes - 3 to 5 Years Maximum of +25°C -
RS Stock No. 511-3511
Mfr. Part No.SWL1850-12FR
BrandYuasa
$599.02
Each
units
66Ah 12V - 174 x 350 x 166mm M6 AGM - - 23kg Yes Yes 10 to 12 Years -20 → +60°C -
New
RS Stock No. 189-1578
Mfr. Part No.12FGL27
BrandFiamm
$267.90
Each
units
27Ah 12V FGL 166 x 175 x 125mm - VRLA AGM - - 9kg Yes Yes 10 to 12 Years Maximum of +25°C -
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