How to install lead acid batteries

As we all know, lead acid batteries are very different from other rechargeable batteries, such as lithium ion battery. Just like mobile phones, we only need install it on the phone and it will work normally. When its power use up, we can either charge it through a data cable or by a universal charger. The two ways are easy for us to operate. However, due to its specific design, we are not able to install the lead acid battery like that. Here are some simple steps to help you properly install these batteries.

1. Disconnect ground cable first.

2. Note position of Positive (+) and negative (-) cables. Mark cables for correct connection to the new battery.

3. Remove old batteries.

4. Clean terminals and cable connections. Broken, frayed, brittle, kinked or cut cables should be replaced.

5. Clean and/or paint and repair battery compartment and hold down.

6. Install and secure the new battery. Be careful not to ground the terminals on any metal mounting, fixture or body part.

7. Connect the cables tightly. Connect the ground cable last to avoid sparks.

Did you get these tips to install your lead acid battery? Yes, you did. So if this article helps, I hope you can visit my blog again. Thanks.

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Be careful of lead acid battery or it will kill you

As we all know, lead acid batteries have been used for over 140 years, and they are reliable and dependable. But sometimes we still worry about them because these batteries contain sulfuric acid which is a highly corrosive poison and will produce gasses when recharged and explode if ignited. This can hurt you! When working with batteries, you need to have plenty of ventilation, remove your jewelry, wear protective eyewear (safety glasses) and clothing, and exercise caution. Do not allow battery electrolyte to mix with salt water. Even small quantities of this combination will produce Chlorine gas that can kill you! Whenever possible follow the manufacturer's instructions.

Lead acid batteries contain a sulfuric acid electrolyte, which can be poisonous and is highly corrosive. Flooded Lead Acid batteries will produce gasses when discharging and re-charging which can explode! When working with batteries, you need to have plenty of ventilation, remove your jewelry, wear protective eyewear (safety glasses) and clothing, and exercise caution. Do not allow battery electrolyte to mix with salt water. Even small quantities of this combination will produce Chlorine gas that can KILL you!

Anyway, if you want to handle with these batteries, please pay attention to its user's instructions. To prevent you from hurt, you must keep the above tips in mind. In general, any lead acid battery doesn't hurt you if you don't deal with it, because they are sealed. Although sometimes you need to add distilled water to maintain it, it is not hard for you to do that and I think this job won't hurt if you following the correct steps to maintain the lead acid battery.

Lead acid battery problems in the operation of backup power

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My opinion about UPS batteries

UPS batteries have always a lot of cells connected to series and many times parallel too. Using charging method where batteries are resting will reduce corrosion during resting period (tested by YUASA and HAWKER in 80S with VRLA AGM batteries). After resting period, it is very important to get batteries (all cells) full charged. If batteries are not equal, it can be challenging. Weak batteries become weaker time after time and will be broken faster than others. It is good to find weak ones before they are broken and using periodical charging method you will find them. OCV should not be too low during resting period. If you are using standard AGM lead-tin / lead-calcium-tin alloy products UPS system should work ok, if recharge voltage is 2.33 VPC + 20 C X hours and after this period normal float voltage X h. If you are using AGM thin plate pure lead products, all cycles can be challenging because very limited cycle capability. So, it is very important to use right type of recharging voltage and current if you are using periodical charging.

Depend on the battery technology being used. Most UPS type batteries (AGM Flat plate) are not design for deep discharge cycling. If this was a design requirement, a tubular plate Gel or flooded type battery would be selected.

UPS and Telecom batteries are continuously float charged not only to keep them fully charged but more importantly to minimize positive grid corrosion which maximizes battery life. All UPS battery life estimates (and warranties) are based on this since UPS batteries tend to ultimately fail due to positive grid corrosion / grid growth (not paste shedding or cycle-out). The positive grid actually corrode more rapidly when the battery is at open circuit than when the battery is being properly float charged. If my memory serves me, it was established sometime in the late 1980's that grid corrosion is minimized when the positive plates are polarized 30 - 70mv above the OCV.

Each Component of VRLA Battery Construction Affects its Life

Each Component of VRLA Battery Construction Affects its Life

Lots of Problems we found when using the lead acid battery

Lots of Problems we found when using the lead acid battery

Environmental Factors Affect the VRLA Battery Service Life

Although there are many factors affecting VRLA battery service life, here we just discuss about environment.

1. Ambient temperature. The normal operating temperature of VRLA battery is 20 - 40 ℃. The maximum operating temperature is 25 ℃. As the temperature rises every 5 ℃, the service life will reduce 10% and it's prone to thermal runaway.

2. Ambient humidity. The working humidity of VRLA battery should be between 5% and 95% without moisture condensation. There is moisture condensation in the surface of battery when the humidity is too high and it's prone to short circuit; if it is too low, it easily produces static electricity.

3. Dust. So much dust will make the VRLA battery short circuit and safety valve blocking is out of service.

The following factors can affect the VRLA battery's performance. Of course, it’s just a part. If you are luck to visit a VRLA battery manufacturer, I think you will see these components clearly and easily understand its reaction.

More useful knowledge will be written here. Hope you can get the useful information that you need. Welcome to visit again.

The most common type of lead acid battery - VRLA battery

If you are not familiar with lead acid battery, I think you never heard of VRLA battery that is the most common type. VRLA battery is short for valve-regulated lead acid battery. They always include a safety pressure relief valve, so they don't require regular addition of distilled water to the cells. As opposed to flooded lead acid batteries, a VRLA can not spill its electrolyte if it is inverted. In fact, "valve regulated" doesn't wholly describe the technology. The oxygen evolved at the positive plates will largely recombine with the hydrogen ready to evolve on the negative plates, creating water and so preventing water loss. The valve is a safety feature in case of hydrogen evolution becomes dangerously high.

VRLA batteries are commonly further classified as AGM VRLA battery and gel battery. The electrolyte of AGM batteries is being held in the glass mats, as opposed to freely flooding the plates. Very thin glass fibers are woven into a mat to increase surface area enough to hold sufficient electrolyte on the cells for their lifetime. The fibers that compose the fine glass mat do not absorb nor are affected by the acidic electrolyte they reside in. These mats are wrung out 2–5% after being soaked in acids, prior to manufacture completion and sealing. The AGM battery can now accumulate more acid than is available, and never spill a drop.

However, gel battery uses a gelified electrolyte. The sulfuric acid is mixed with silica fume, which makes the resulting mass gel-like and immobile. Gel batteries reduce the electrolyte evaporation, spillage (and subsequent corrosion issues) common to the wet-cell battery, and boast greater resistance to extreme temperatures, shock, and vibration. With gel electrolyte the separator was no longer such a critical, hard to make component. And cycle life was increased in some cases dramatically. With gel electrolyte a number of the shedding of active material failure problems were eliminated. More importantly real gas recombination was used to make batteries that were not "watered" and could be called maintenance free.

Most lead acid batteries are VRLA battery. So we just don't know this name. As a matter of fact, we are using these batteries. Do you want to know more useful information about VRLA battery? How should we maintain these batteries? What should we pay attention to when we charge them? How to extend its life? These questions all are very important for its life. To prolong its life, we should learn more knowledge to help us. Just go on reading my blog, and you will get what you want.

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