Acid Battery
Vrla Batteries
VRLA stands for valve-regulated lead-acid and is the designation for low-maintenance lead-acid rechargeable batteries. Because of their construction, VRLA batteries do not require regular addition of water to the cells.[1] VRLA batteries are commonly further classified as:
• Absorbed glass mat battery
• Gel battery
These batteries are often colloquially called sealed gel batteries, but they always include a safety pressure relief valve. As opposed to vented (also called flooded) batteries, a VRLA cannot spill its elecrolyte if it is inverted. Because VRLA batteries use much less electrolyte (battery acid) than traditional lead-acid batteries, they are also occasionally referred to as an “acid-starved” design.
The name “valve regulated” does not wholly describe the technology; these are really “recombinant” batteries, which means that the oxygen evolved at the positive plates will largely recombine with the hydrogen ready to evolve on the negative plates, creating water—thus preventing water loss. The valve is strictly a safety feature in case the rate of hydrogen evolution becomes dangerously high.
One result of this design is a much higher ratio of power to “floorspace” than large, flooded type battery systems; another is a high-rate power capacity, though of relatively short duration. As a result, VRLA batteries are frequently employed in UPS (uninterruptible power supply) or other high-rate applications. Long duration applications such as telecommunications are not as well-suited to VRLA batteries, as there are other, more applicable battery designs available.
Significant improvements to VRLA battery cells can be made with the addition of a catalyst for recombining oxygen and hydrogen gasses within the cells as disclosed in U.S. Application Ser. No. 09/022,336 filed Feb. 11, 1998, and which is hereby incorporated by reference. One preferred method of adding catalyst to VRLA battery cells is to couple the catalyst with the pressure relief valve, sometimes referred to as a pressure relief vent or pressure relief vent cap, which provides a convenient means of retrofitting existing cells as well adding catalyst to new cells. A novel catalyst device for use with pressure relief valves is disclosed in U.S. Application Ser. No. 09/022,336. While the addition of catalyst provides significant improvement in the performance and of life of VRLA cells, additional improvements to the catalyst itself, particularly with the structures and devices that support or house the catalyst, are believed necessary to gain the full benefits of the catalyst.
About the Author
panbrian
queens of the stone age – battery acid
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NEW BATTERY INCLUDING ACID CB9B YB9B COUGAR 125 00-03 £18.99 |
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NEW BATTERY INC ACID CB14LA2 YB14LA2 KLR650 B 1990-1991 £22.99 |
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NEW BATTERY INC ACID CB9B YB9B EXTREMA RS125R 1994-1996 £18.99 |
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NEW BATTERY INC ACID CB14LA2 YB14LA2 KLF220 KLF 220 92 £22.99 |
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NEW BATTERY INC ACID CB10LA2 YB10LA2 GS550 GS 550 77-82 £24.99 |
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NEW BATTERY INC ACID C50N18LA2 XV1100 XV 1100 1978-1999 £36.99 |
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NEW BATTERY + ACID CB10LA2 YB10LA2 GSX400 GSX 400 80-81 £24.99 |
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NEW BATTERY INC ACID CB14LA2 YB14LA2 FZX700 FAZER 86-87 £22.99 |
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New Sealed Lead Acid Intruder / Burglar Alarm Battery £11.99 |
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NP1.2-12 Power-Sonic 12v 1.2Ah Lead Acid Battery PS1212 £10.39 |
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NP3.4-12 PowerSonic 12v 3.4Ah Lead Acid Battery PS1230 £15.99 |
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NP12-6, 12Ah 6v, Yuasa Lead Acid Rechargeable Battery £19.99 |
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NP2.1-12 PowerSonic 12v 2.1Ah Lead Acid Battery PS1221 £12.33 |
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NP12-12 Power-Sonic 12v 12Ah Lead Acid Battery PS12120 £22.90 |
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YUASA Valve Regulated Lead Acid Battery 12Volt 7Amp Hr. £8.00 |
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New Sealed Lead Acid Intruder / Burglar Alarm Battery £11.99 |
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Plug-in 6/12V 500mA lead acid battery charger £8.88 6/12V 500mA LEAD ACID BATTERY CHARGERPlug-in 6/12V 500mA lead acid battery chargerA plug-in charger designed for use with 6V or 12V lead acid batteries. Suitable for charging 5Ah batteries…. |
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Danger Battery acid – Warning Sign £3.61 Warning safety sign: Danger Battery acid – Acid burning in warning triangle (Size: 150 x 50 Material: Brushed metal/stainless steel effect self adhesive vinyl)… |
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Rita £13.99 … |
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