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3555

BATTERY HiTESTER

ASM GmbH 

3

3555 BATTERY HiTESTER

On-the-spot testing of compact storage batteries

used in mobile phones and similar handheld devices

With improvements in battery technology, the

range of applications in portable devices is

growing rapidly: not only mobile phones, but

also video cameras, laptop computers, and other

electronic devices. But the performance of these

devices depends on the lifetime and performance

of the batteries. Because of the wide variation in

battery lifetime depending on the charging

frequency and pattern of use, battery maintenance

tools are indispensable.

The 3555 BATTERY HiTESTER provides a simple,

on-the-spot assessment of the state of compact storage

batteries, including nicad (Ni-Cd) and nickel metal

hydride (Ni-MH) batteries.

3555 BATTERY HiTESTER

Simultaneously

measure

resistance and

voltage

Model 3555 uses the same AC four-terminal method* as that used on Models 3550 and 3551

for testing lead-acid batteries to measure the internal resistance, and simultaneously measures

the battery voltage, to give an immediate Pass/Warning/Fail result.

* The AC four-terminal method supplies an AC current from the source terminals to the battery being

tested and measures the voltage drop with the sense terminals. This cancels out the contact resistance and

lead resistance, and provides accurate measurement of low resistances. See also the enlarged illustration

of the tip of the 9461 Pin-Type Leads.

Three-rank rating of The Pass/Warning/Fail assessment of a battery's state is based on a six-way combination of

battery state: Pass, comparisons against upper and lower resistance limits and a voltage threshold.* This result is

then indicated by LEDs and a beeper.

Warning, or Fail

* The comparison threshold values depend on the battery manufacturer, type, and capacity, and these must

be established by the user.

Simple operation Once the appropriate comparison values for the battery being tested have been entered or

recalled from memory, measurement is as simple as touching the pin-type probes to the battery

terminals. Since the tester is battery-operated, it can also be used anywhere.

Battery diagnosis

Once a compact storage battery, typically one used in a mobile phone, exceeds the

manufacturer's guaranteed limit on charge-discharge cycles, its charging capacity gradually

deteriorates, and the operating time on a single charge may become extremely short.

A simple test is therefore required to determine whether an apparently faulty device simply

has a failing battery. In cases such as these, the 3555 BATTERY HiTESTER gives exactly

the guidance needed to determine whether or not to replace the battery.

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