Knowledge of C number, voltage and discharge of lithium battery

A, what does S mean:

Common several S, that is, single section batteries together.Section 1 s is single batteries, section 2 batteries in series are 2 s...So on.1 s nominal voltage is 3.7 V, this is the most stable time battery voltage.The plus or minus 0.5 V are in place lithium battery range of receiving.That is to say, single section batteries, should be 4.2 V, more than for filling.The corresponding discharge cut-off voltage, shall not be less than 3.2 V.In practice, in order to protect the battery, suggested as appropriate to improve discharge voltage.

Second, the relationship between cell C number and discharge:

Common batteries have marked: several S, how many ma, discharge coefficient C.So the biggest discharge battery or continuous discharge exactly how to calculate?Look at the battery parameters, generally marked last put coefficient, such as 40 c, 2000 mA of the battery, then continue to discharge is I = QC = 2 x40 = 80 A (please pay attention to convert the milliampere shing, 1000 (mA) mA = 1 (A) Ann).Maximum discharge of course is the maximum instantaneous discharge coefficient multiplied by the nominal battery capacity, also please note that the unit conversion.

Three, what voltage and discharge coefficient respectively:

In simple terms, affect the speed of the motor, voltage discharge coefficient directly affect the torque of motor.The speed of the motor has a KV value, = xKV battery voltage value.This explanation is very clear.As for the torque of motor, the same parameters of motor, the instantaneous electric current passes through, the greater the resulting torque.

Four, motor, electric adjustable relationship with the collocation of the battery:

This is A relatively complex problems, with many novice in tram, often in order to choose what kind of motor, or how much A electrically controlled, or with what kind of batteries and not easy to burn car and annoyance.Here, remember two formulas, will be OK.

First, of course: I = QC, discharge the battery itself, the second: P = UI, motor power formula, believe everybody knows this is by the P = w/t, and w = uIt conversion.For example: 5000 ma, 40 cLithium electricity, very violent, how you will need to match a allows continuous current electrical modulation, through calculation, we learn that in 200 a.Well, then, it seems that we should go on a 200 a electrically controlled wouldn't burn.Wait, then look at another formula, P = the UI, if we choose the motor wattage is 2220 w, and with the battery is 11.1 V, the higher wattage or motor, then of course we should go to buy a 200 a electrically controlled.Got it?P = UI = 11.1 X200 = 2200 w. Ha ha, but often we didn't deserve such high power motor, such as the motor is 1000 w, and the other parameters constant, we need to how much electricity adjustment, the count: I = P/U = 1000/11.1 = 90 a.That is to say, as long as you can have a 90 a continuous power standard of electric, we will be OK.At the same time, don't forget to use this method to test the maximum instantaneous discharge of electricity, to check the same."

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