effect of electrolyte density and discharge on lead acid batteries

What are the differences among lithium batteries?

Apr , 06 2022

Are all the lithium batteries same? No! In fact there are a group of related family chemistries. The battery industry highlights six common variants along with the chemistry characteristic details of those most applicable for your application. Below the 6 common types of lithium ion battery are shown in the table: Chemistry Lithium Cobalt Oxide Lithium Manganese Oxide Lithium Nickel Manganese Lith...

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Some FAQ about the Lithium batteries for UPS

Apr , 06 2022

What are the primary benefits of switching to lithium based UPS batteries? The most common reason cited is the significantly longer service life. Lithium also provides a greater cycle life (the number of charge/discharge cycles ranges from extends into the thousands, versus approximately 500-600 for VRLA batteries), as well as a longer warranty. Furthermore, the lighter weight and smaller footprin...

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Battery charging tutorial-Part 2

Apr , 18 2022

Equalization Equalization is essentially a controlled over charge. Some charger manufacturers call the peak voltage the charger attains at the end of the BULK mode (absorption voltage) an equalization voltage, but technically it's not. Higher capacity wet (flooded) batteries sometimes benefit from this procedure , particularly the physically tall batteries. The electrolyte in a wet battery can str...

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DC-DC Converters-A suitable alternative to battery chargers

May , 09 2022

What if you had all the power you wanted or needed at 125 Vdc, but your site manager suddenly handed you a requirement for 24 Vdc to run some communication gear? You might tell him to buy a 24 V battery and a 24 V battery charger. But, these elements come with costs: initial, maintenance, and probable future battery replacement. There is another way: for approximately the same cost as the battery ...

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How to do Battery charger Sizing?

May , 09 2022

In this article we will discuss the La Marche method for sizing a battery charger. There are a few pieces of information that must be gathered before the charger size can be calculated. The required information is as follows: – What is the maximum load in amps? – What is the battery backup time needed? – What is the required recharge time? – What is the battery type (Lead acid or Ni-Cad) and the n...

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Battery charger options (part-1)

May , 16 2022

In this series of articles we will discuss the options you can have in your battery charger. You can check out these options for choosing your desired battery charging solution. Special Ground Bus This is an appropriately sized ground bus bar mounted inside the battery charger to allow customers to tie ground connections inside the charger to the external system ground. The ground bus bar allows f...

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Battery charger options (part-2)

May , 16 2022

In this series of articles we will discuss the options you can have in your battery charger. You can check out these options for choosing your desired battery charger solution. Alarm and Auxiliary Switches Breakers can be equipped with either an Alarm Switch or an Auxiliary Switch. They allow the customer to remotely monitor the status of the breaker telling them if it is tripped or open/closed. T...

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Battery charger options (part-3)

May , 16 2022

In this series of articles we will discuss the options you can have in your battery charger. You can check out these options for choosing your desired battery charger solution. Charge Dividers Our charge divider option adds series diodes to the output of our charger to isolate multiple banks of batteries. The battery banks, in effect, do not see each other, allowing each bank to be charged complet...

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Battery charger options (part-5)

May , 23 2022

In this series of articles we will discuss the options you can have in your battery charger. You can check out these options for choosing your desired battery charger solution. Zero Center Ammeter with Battery and Load Terminals DC Ammeter, which reads both charge and discharge current to the battery. Two sets of output terminals are provided, one for the load connection and one for the battery co...

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High Frequency / High Ripple Resonant Chargers: Good or Bad? (part-2)

Jun , 13 2022

Battery charging is a complex electrochemical process, in which the discharged electric energy is replenished from the electric power grid. This is accomplished using a battery charger, which is an electrical/electronic device that converts the incoming AC line voltage into a regulated DC voltage to meet the charging needs of the respective battery. In a series of articles we are going to explain ...

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What are some key practices for a Fast or Opportunity charge operation?

Jun , 20 2022

What are the operational implications of charging at a higher rate? Initial Cost: Initial charger investments may cost up to 5 times more than a conventional charger operation, especially if the charging system utilizes a dedicated charger for every battery. Infrastructure Change: Once committed to the Fast or Opportunity charge process, it can be very difficult to transition back to Conventional ...

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What types of monitoring and recording devices are suited for high rate charging?

Jun , 20 2022

The higher the charging rate, the more critical it is to monitor the charging process to prevent permanent capacity loss. In efforts to preserve battery life, Fast and Opportunity charging incorporates a method of monitoring battery electrolyte temperature and/or internal resistance and adjusting charging current as necessary. Although these monitoring devices can have a very positive impact on ba...

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