Battery means the battery internal resistance are at work, the current flowing through the battery internal resistance, the exchange will generally be divided into internal resistance and DC resistance, because the internal resistance of rechargeable batteries is very small, when measured DC resistance because of electrode polarization capacity , resulting in polarization resistance, we are unable to detect its true value, and measuring its internal resistance may be waived communicate the impact of polarization resistance, come within the true value.
Communicate the internal resistance of the test methods are: the use of the battery is equivalent to the characteristics of an active resistance, give the battery a 1000HZ, 50mA of constant current, its voltage rectifier filter sampling in order to deal with a series of precise measurements of its resistance.evo n410c battery , evo n600c battery , evo n610c battery .