Power tools power battery has a variety of specifications, ranging from 7.4V to 36V, which is the most common number of power tools for home use 12V and 16V, more professional engineering equipment inside the majority of 22V, so why is the same power tool lithium battery, why so many kinds of voltage, and what is the difference between them?
(A) the power design of the equipment is different
Home tools and special engineering tools is certainly the first difference in the power of the equipment, home use is generally not more workload, so 12V and 16V power tools can meet daily needs, special engineering equipment is designed to meet the long time high power continuous work and design. Higher voltage makes it easier to achieve high power output.
Home power tools and professional engineering tools have the following differences
1. Equipment and power battery voltages are different.
7.4V\12.6V\16.8V\21.6V\25.2V\36V, respectively
2、The number of revolutions of power tools is different.
motors used at different voltages, are not the same, the higher the voltage the greater the relative rpm, the higher the power.
3, the difference in battery capacity.
Different voltage motors, the relative need to configure the power battery capacity needs to be higher, as well as higher power devices require power battery input out is also different.
The working principle of power tools.
DC motor rotation, after deceleration by the planetary reduction mechanism, drive the drill chuck rotation to drive the work of the batch or drill bit. Toggle the positive and negative switch lever, you can adjust the polarity of the DC power supply to change the forward or reverse rotation of the motor to achieve the demolition and installation of the work.
Safety rules for the use of power tools.
When operating power tools, in addition to the general rules for power tools, the following additional safety rules should be observed.
1、Please charge at 10~40℃. Temperature below 10℃ may lead to overcharging, which is extremely dangerous.
2, the charger with safety protection device, rechargeable batteries will automatically cut off the power supply when full, can be used with confidence.
3、Do not allow impurities to enter the connection hole of the charger.
4、Do not disassemble the rechargeable battery and charger.
5、Do not short-circuit the rechargeable battery. When the rechargeable battery is short-circuited, it will cause a large current and overheat, and burn the rechargeable battery.
6、Do not throw the rechargeable battery into water. The rechargeable battery will explode when heated.
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