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Ancel BST100 battery tester is used for lead-acid starting battery, along with checking the following conditions of the battery, starting up, charging, and loading.
With great design, easy operation, precise reading, complete functions, this tester supply the readings by a large LCD and hints by sound and light when testing.
It utillizes 4-wire kelvin method to complete collection of a series of complicated data for calculating every testing data with build-in precise circuit and improved digital processor.
moreover some circuit improvements including polar reversal protection, over voltage input protection, loose lead detection, ensure safety and convenience during testing.
So this is the best tool in the fields of battery sales, vehicle repair and battery inspection in equipment system associated with lead-acid starting battery.
Use to test a wide range of 12V batteries (Starting [SLI], Deep Cycled and Marine) of Wet (Flooded), VRLA or Maintenance Free (MF), Sealed Maintenance Free (SMF), Absorption Glass Mat (AGM) and GEL cell. The major battery standards JIS, SAE, EN, DIN and IEC are supported.
The battery will gradually be aged with an increase in time. The main reason is that it can no longer generate some
effectively chemical reaction because of the aging of the surface of the battery plate. International Electric and Electronic
Engineer Association(IEEE) formally looks the Conductivity Test as one of the standards of checking lead-acid storage
batteries. It points out from IEEE standard 1118-1996 that: Conductivity Test is used to test AC current generated by
putting the known frequency and amplitude AC signal to both sides of the battery. AC conductivity value is the ratio of AC
current signal which keeps the same phase with AC voltage and the AC voltage. This tester is designed from this principle
actually.
All the negative currency will affect the result. Therefore please remove the negative currency before checking, to achieve
the accurate data.
The internal resistance of the sealed lead-acid battery is complicated. It is generated by ohm internal resistance,
concentration polarization internal resistance, chemical reactions internal resistance and interference effect caused by
double capacitance’s charging. The ingredient of internal resistance and its relative content will change with different
test methods and different test moments, which can lead to different tested values of the internal resistance. And there is
no strict relationship between internal resistance (or conductance) and capacitance of the sealed lead-acid battery. So it is
impossible to predict the life of battery according to a single battery’s internal resistance. But it can be predicted the life
of the battery will be over soon from the sudden increase of its internal resistance and decrease of its conductance.
CCA is considered as a control standard with the produce of the battery. According to the accumulated records, the tested
value of a new battery is 10-15% higher than the standard value, and along with consuming the battery, the value is
getting close to standard, even lower afterward.
The load test method: According to the physical formula R=V/1, test equipment forcibly makes the high permanent DC (
presently 40-80A large current is available ) go through the battery shortly ( about 2-3 seconds). And then the tested
voltage of the battery can be used to figure out the internal resistance by the formula.
(1) Only available for large capacitance battery or storage battery. The small capacitance battery can not load 40-80A
large current in 2-3 seconds.
(2) When the large current going through the battery, there comes out a polarization phenomenon from the internal
electrode, which can cause polarization internal resistance. As a result, it has to be tested in a short time. Otherwise, there
will be a large error in the internal resistance value.
(3) The internal electrode will be damage generally when the large current goes through the battery.
The method of this tester: Battery is equivalent to active resistance. So we add a fixed frequency and small current to it
and then sample the voltage value. Eventually, the internal resistance can be figured out after some operation such as
(1) It can be used for checking almost all the batteries including low capacity battery and internal resistance of the
notebook battery exclusively.
(2) It will not harm the battery by using this method.
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