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. 537-5488
BrandRS PRO
HK$177.03
Each
units
7Ah 12V 151 x 65 x 93.5mm Faston F1 AGM Yes UPS 2.2kg - - 3 to 5 Years -20 → +60°C -
RS Stock No. 597-835
Mfr. Part No.NP7-12
BrandYuasa
HK$373.18
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. 537-5517
BrandRS PRO
HK$727.74
Each
units
38Ah 12V 197 x 165 x 170mm T6 AGM Yes UPS 12.2kg - - 3 to 5 Years -20 → +60°C -
RS Stock No. 597-863
Mfr. Part No.NP38-12I
BrandYuasa
HK$1,163.43
Each
units
38Ah 12V 197 x 165 x 170mm M5 AGM - - 14.2kg - - 3 to 5 Years -20 → +60°C -
RS Stock No. 597-841
Mfr. Part No.NP12-12
BrandYuasa
HK$543.81
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. 537-5494
BrandRS PRO
HK$435.45
Each
units
18Ah 12V 181.5 x 77 x 167.5mm T12 AGM Yes UPS 5.4kg - - 3 to 5 Years -20 → +60°C -
RS Stock No. 198-8125
Mfr. Part No.NPC24-12
BrandYuasa
HK$959.06
Each
units
24Ah 12V 125 x 166 x 175mm M5 AGM Yes - 9kg - - - -20 → +60°C -
RS Stock No. 537-5501
BrandRS PRO
HK$635.03
Each
units
24Ah 12V 166 x 175 x 125mm T12 AGM Yes UPS 7.2kg - - 3 to 5 Years -20 → +60°C -
RS Stock No. 597-857
Mfr. Part No.NP24-12I
BrandYuasa
HK$1,017.92
Each
units
24Ah 12V 166 x 175 x 125mm M5 AGM - - 9kg - - 3 to 5 Years -20 → +60°C -
RS Stock No. 200-6505
Mfr. Part No.NP17-12I
BrandYuasa
HK$756.64
Each
units
17Ah 12V 167 x 181 x 76mm M5 AGM - - 6.1kg - - 3 to 5 Years -20 → +60°C -
RS Stock No. 537-7305
BrandRS PRO
HK$302.20
Each
units
12Ah 12V 151 x 98 x 95mm Faston F1 AGM Yes UPS 3.5kg - - 3 to 5 Years -20 → +60°C -
RS Stock No. 511-3460
Mfr. Part No.RE7-12L
BrandYuasa
HK$435.69
Each
units
7Ah 12V 94 x 151 x 65mm Faston F2 AGM - - 2.8kg - - 6 to 9 Years -15 → +50°C -
RS Stock No. 720-2966
Mfr. Part No.LC-R127R2PG
BrandPanasonic
HK$392.07
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. 613-0854
Mfr. Part No.REW45-12
BrandYuasa
HK$479.97
Each
units
7.3Ah 12V 94 x 151 x 65mm Faston F2 AGM - - 2.5kg - Yes 6 to 9 Years -15 → +50°C -
RS Stock No. 707-4966
Mfr. Part No.NPW45-12
BrandYuasa
HK$397.34
Each
units
8.5Ah 12V 151 x 65 x 94 Faston F2 AGM - - 2.7kg - Yes 3 to 5 Years -15 → +50°C -
RS Stock No. 906-4233
Mfr. Part No.NPC100-12
BrandYuasa
HK$3,389.88
Each
units
100Ah 12V 350 x 168 x 225mm M8 AGM Yes - 38.8kg - - - -20 → +60°C -
RS Stock No. 707-3434
Mfr. Part No.RSAMP3780
BrandEnersys
HK$5,409.53
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. 532-9794
Mfr. Part No.RE12-12L
BrandYuasa
HK$682.64
Each
units
12Ah 12V 98 x 151 x 98mm Faston F2 AGM - - 4.2kg - - 6 to 9 Years -15 → +50°C -
RS Stock No. 686-7253
BrandRS PRO
HK$169.18
Each
units
5Ah 12V 90 x 70 x 101mm Faston F1 AGM Yes UPS 1.8kg - - 3 to 5 Years -20 → +60°C -
RS Stock No. 707-3446
Mfr. Part No.RSAMP3716
BrandEnersys
HK$2,052.35
Each
units
7Ah 12V 101 x 138 x 86mm M4 Pure Lead Yes - 3kg Yes Yes 12 Years Plus -40 → +50°C Enersys PowerSafe
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