What you should know about balancing car batteries?

As the saying goes, balanced car can run far based on batteries. Without electricity, balanced car cannot work. The sustainability of balanced car fundamental factor is battery. Many car manufacturers is very confident to describe their balance car for the car mileage. The dynamic range has 20 kilometers, and even can walk 60 km. it is easy to know that it needs many electric power to achieve this.

From the balance of the car battery usage on market at present, the vast majority of use is 18650The lithium battery, very useful Polymer battery. But basically this two categories, first we explain 18650.

What is 18650? Model 18650 is a lithium battery, the battery is 18 mm in diameter, length of 65 mm, into a cylindrical shape. Most of our laptop battery will use 18650 batteries.

The SONY company in order to save costs discovers how the size. And because18650 lithium batteries stability, high capacity, no memory, environmental protection etc., gradually the Ni-Mh batteries or something out of the digital world! The who, tesla motors use 18650 is Panasonic battery.

Focus is coming, we often say that there are two kinds of 18650, is a kind of cobalt acid lithium, another kind is the lithium iron phosphate, now what, of course, the manganese metal. We don't care about these details. Because the company's standard are different materials. Led to the lithium battery have some difference on the capacity.

As the industry accounts for larger several, Panasonic, Samsung, SONY is also the highest 18650 capacity of 3400 mAh. Most of the capacity is between 2200 mAh to 3000 mAh.

And consider the use of 18650 time has another standard, is the minimum discharge end voltage. For instance, section 18650 of the nominal voltage of 3.7 V, its maximum charge voltage of 4.2 V, the minimum discharge general termination voltage of 2.75 V. This means that when the battery charge most filled up to 4.2 V, is that what the filling. The discharge to the 2.75 V battery is low. Why do you say that? Let's look at the balance of the car battery. Generally one can use the balance of the car battery, who use 18650 is composed by many cells in series with the several parallel several become a battery pack, general normal manufacturer logo how many V battery.

For example, a two and three strings18650 battery six batteries is divided into two groups, namely the three, three series after the parallel. The battery finally identified parameters of 11.1 V / 4400 mAh.= 3.7 V to 11.1 V x 3, with a total capacity of 4400 mAh = 2200 mAh x 2.Balance of the car might need dozens of 18650 battery, a few strings and became a large capacity battery, to calculate, have to go to their engineer.

Three series of the batteries and laptop

Connecting in series can raise voltage, while connect in parallel can improve capacity. This enables balanced car battery relatively with high voltage and large capacity. But generally the manufacturer is not going to put these data marked in detail. Otherwise, you cannot ride a bike. You can know how far the bike can go according to the battery voltage and motor power. Then the fake duration will be exposed. A security problem should be pay attention to the battery pack there are so many batteries in a battery pack, parallel connection is OK, but as long as there is one battery connecting in series has voltage instability issue or it doesn't match the battery pack, it is very easy to lead to overcharge or over discharge. General battery has a circuit protection board to ensure safety. However, there are some battery problems, which may make some danger. This situation has led to a lot of accidents. It is worthy of attention! The balanced car battery is N times as a normal charger!

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