Battery pack nominal voltage and output voltage range

　　There are many types of batteries, lead -acid batteries, lithium -ion batteries, nickel -metal hydride batteries, nickel -chromium batteries, lithium sub -disposable batteries, alkaline batteries, carbon batteries, and recently hot hydrogen combustion batteries. It will not be listed one by one. Let ’s take a look at the voltage of various batteries together!

　　Lead-acid batteries:

　　The nominal voltage of a single-style lead-acid battery is 2.0V, which can discharge to 1.5V, and can be charged to 2.4V; therefore, a single lead-acid battery, the nominal voltage is 2V, the voltage output range is 2.4V-1.5 V, full of 2.4V. As the discharge continues, the voltage continues to show curve. In practical applications, in order to obtain a variety of different voltages, 6 monocular lead -acid batteries are often connected in series to form a nominal nominal 12V of 12V. Lead -acid batteries, so the lead -acid battery nominal 12V has: 9V ~ 14.4V, full of 14.4V, discharge cuttering voltage is 9V, lead -acid battery has a good stability, you can not need to protect the board without protective boards Controlling voltage, overloading, and no risk of overplaying. Of course, long -term charging and putting on the life of lead -acid batteries still have a lot of effects. In addition, multiple stringing methods, as well as 24V, 36V, 48V Lead -acid batteries for waiting for voltage.

　　lithium battery:

　　There are many classifications of lithium ion batteries, different types, and the voltage platforms are different. Let ’s take a look at the voltage range of various lithium ion batteries.

　　1: Sanyo lithium battery, single -section nominal voltage is usually 3.7V, full voltage 4.2V, discharge deadline is 2.0V, lithium batteries are generally protected. Once the lithium battery is placed, the process is irreversible, and there will be leakage. The risk of liquid and explosion, lithium batteries with a voltage of 0, can not be used by charging. Generally, the protective board is set up with 2.5V ~ 3V. Through the multiple string, different voltage and capacity can be obtained. The 2 string of the voltage is 7.4V, the three -string of nominal voltage 11.1V, the four series of nominal voltage 14.8V, five String, there are less applications in the six strings. The seven string of nominal voltage is 25.9V, eight ~ 12 stringers are less applications, 13 string 48.1V, so on. In the future, push ...

　　There are many types of ternary lithium batteries, with cylinders in shape, soft packet polymers, square aluminum shells, etc., but the nominal voltage is generally 3.7V, and there are 3.6V and 3.65V. The core is mostly, but the voltage interval range is the same.

　　2: Lithium iron phosphate, a single -section nominal voltage of 3.2V, full voltage 3.65V, discharge deadline 2V, the protective board setting generally excessive voltage is 2.5V ~ 3V, there is basically no capacity below 3V, the capacity is basically concentrated at about 3.2V or so Essence The discharge curve is relatively smooth, and the voltage below 3V shows a cliff -like decline. There are also various categories such as cylinders, soft bags and squares. Through multiple strings, different voltage and capacity are achieved. Two string of two string of nominal voltage of 6.4V, three string of three strings, and four strings. The nominal voltage is 12.8V, the eight series nominal voltage is 25.6V, the fifteen skewers are 48V, and the same as the triangle lithium battery corresponds to 6V, 24V, 36V, 48V, etc. of the lead -acid batteries. The habit is called. There is still a difference between the nominal voltage of the actual lithium battery and the lead acid. The advantages of lithium iron phosphate battery is that the cycle life is higher than the ternary lithium, the safety is high, and the energy density is lower than the ternary lithium battery. The same voltage and capacity of the same voltage and capacity Iron and lithium batteries, size and weight larger than three yuan.

　　3: Lithium titanate battery, a single -section nominal voltage of 2.4V, a voltage range of 1.5V ~ 2.8V, the advantages of lithium titanate batteries are long cyclic life, which can reach tens of thousands of charges and is safe and reliable. , Put the root nails in the middle of the battery, the battery does not fire, and it is still discharged normally. However, lithium titanate has a disadvantage, large volume, heavy weight, low energy density, similar to lead -acid batteries, and the relative cost is high.

　　NiMH batteries:

　　The nominal voltage of nickel -metal hydride batteries is generally 1.2V, which is also the average voltage value of nickel -metal hydride battery. The voltage of the qualified nickel -metal hydride battery is relatively stable. The battery can actually use 0.8V, and the voltage is dropped below 0.8V, which indicates that the nickel -metalized battery is overwhelmed, which can generally be repaired. The full voltage of nickel -metal hydride batteries is around 1.4V. Due to different currents, the high voltage of nickel -metal hydride batteries will appear 1.5V when the high voltage is full.

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