22 Years' Battery Customization
Aug 14, 2021 Pageview：20046
There are various common methods of charging a battery, namely constant voltage, constant current, and a merge of constant current/constant voltage with or without a smart charging device. A constant current is an elementary form of charging batteries. The current level for this method is set at approximately 10% of the maximum battery rating. This is a perfect method for Ni-MH types of batteries. Equally, constant voltage plays a significant role by allowing the maximum flow of current into the battery up. Sure, this takes place until the power supply hits its pre-set voltage.
A rule thumb for AGM and gel batteries states that the minimum charging current should range between 15 to 25% of the battery capacity. The exhaustive charging current is 30% for AGM batteries and 50% for a gel battery. It’s evident that as you charge your battery, there are various devices still connected to the power supply, and the speculated power consumption should be included in the 15%-25% range. Also, Lithium-Ion batteries can be put through much higher charge currents.
But wait, a typical charging voltage ranges between 2.15 volts per cell and 2.35 volts per cell, nearly 12.9 volts for a 12v six-cell battery and 14.1 volts for a 12v six-cell battery. These voltages are relevant to apply to an exhaustively charged battery without damaging or overcharging. Some of the basic batteries charging methods include:
?Constant Voltage: A constant voltage charger is well-known as a DC power supply in its simplest form. It features a step-down transformer integral in bringing forth the required DC voltage to charge a battery.
?Constant Current: Constant current chargers stretch the voltage they apply to the battery to keep a constant current flow, switching off immediately the voltage attains the full charge level.
?Taper Current: Unlike V Taper, this is an unregulated constant voltage source. Here, the voltage builds up as the current diminishes.
?Pulsed Charge: Pulsed chargers are recognized for feeding the charge current to various batteries in pulses.?The charging rate and technique for this incredible model can easily be regulated by precisely moderating the width of the pulses.
Accordingly, can a 12-volt battery charger charge a 24-volt battery? Well, you cannot charge a 24 v battery directly with a 12v charger. Of course, this can only be achieved by stepping up a 12v battery charger into 24v or more. However, this method results in an automatic decrease of current, and the battery takes additional time to get charged exhaustively. You can also opt to use a boost converter integral in generating output voltage larger than 24 volts.
How do you charge two 12 volt batteries in a series with a 12-volt charger?
Of course, countless batteries can be connected in various types of circuits such as parallel and series. The model in which batteries are linked to each other resolves the convenient charging options. The basic distinction between parallel and series connections makes it effortless to charge significant lead-acid batteries with a good battery charger safely.
Charging two 12 volt batteries in a series connection is possible if you have the right battery charger. When charging two 12 volt batteries in a series connection, you first need to determine the gross voltage of the batteries. The series connection brings about a cumulative voltage of the batteries while the current remains constant.
You can charge 2 12 volt batteries by fixing one 12-volt battery charger across each battery. Connect the convenient voltage charger across the appropriate terminals in the series connection. The charging time for this connection will be the same. However, it is quite hard to charge two 12 volt batteries in series using a 12-volt charger. The trick is often charging the two batteries equally.?You need to charge the two batteries to about 12.7 volts.
What voltage should you charge a 24-volt battery?
24-volt batteries are very available and indeed manufactured. Sure, you can generate a 24-volt battery by connecting two 12 volt batteries in series. Lead-acid batteries are designed to last for about 5 to 10 years, depending on how they are leveraged. These are the most frequently used batteries because they are easy to maintain and inexpensive.
Undoubtedly, their life can be prolonged if they are well maintained but seriously shortened if not. The significant enemy of a 24-volt battery is a failure to recharge them regularly exhaustively. When this battery is not comprehensively charged, sulfate begins to manifest on the plate, minimizing the plate at hand for discharging and charging. Equalization is one of the best methods that tend to remove this sulfate.
The significant way, though, is to avert sulfate from forming primarily.
Multiple systems encompass a voltmeter within the charger controller. Sure, the voltmeter poises to play a vital role in checking how well a system is doing. A 24-volt battery should be reaching an exhaustive charge of 28.7 volts. Nominal Gel batteries feature a peak charging voltage of 2.3 to 2.36 volts per cell. For a 24 volt charger, this features out to nearly 27.6 to 28.7 volts.
Mastervolt AGM (6 volts, 12 volts) and Mastervolt gel (2 volts, 12 volts) should be charged with nearly 28.5 V for 24 V systems and 14.25 V for 12 V systems. The absorption phase is preceded by the float phase, whereby the voltage is minimized to 27.6 volts for the 24 volts system and 13.8 V for 12 V systems. Moreover, the absorption voltage for wet lead-acid batteries is 14.25 volts for the 12 volts systems and 28.5 volts for the 24 V systems. The float voltage for wet lead-acid batteries is 26.5 V for 24 V systems and 13.25 volts for exhaustive 12 V systems. Most amazingly, Lithium-Ion batteries flaunt a charging absorption voltage of 28.5 volts for 24 V systems and 14.25 volts for 12 volts systems. In this case, the float voltage is about 13.5volts for 12 V and 27.31 volts for 24 V systems.
Conclusion
The charge algorithm for batteries encompasses two main methods that are constant voltage charging and constant current charging. And yes, batteries are chargeable at various rates depending on the requirements. Find out what suits your needs and go with it.
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