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Electrical Equipment General Information - Edition 08.2019
♦ -VAS5900- . Refer to
⇒ “3.2 Battery Charger VAS5900 ”, page 31 .
♦ -VAS5903- . Refer to
⇒ “3.3 Battery Charger VAS5903 ”, page 42 .
In order to receive an indication as quickly as possible of the bat‐
tery condition of discharged Batteries - A- , a conclusion can be
made during the charging process using the Battery - A- current
draw as to whether the Battery - A- should be replaced or charged
completely.
Note
In the case of the -VAS6161- , the current draw test must always
be conducted when the test result “conduct current draw test” ap‐
pears in the display.
The current draw test should always be performed if the test using
the -VAS5097A- had the following results:
1 - Starting power sufficient
2 - Starting power insufficient
3 - Starting power very insufficient
4 - Cannot be tested - charge the Battery - A- and perform the
test again
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Depending on the test results -VAS5097A- (refer to
⇒ “2.6.7 Test Result Evaluation”, page 22 ), additional test steps
or work for a clear evaluation of the battery charge must be made.
By checking a current draw capacity on a Battery - A- during the
charging procedure, it can be determined in a short time whether
a partially discharged or severely discharged Battery - A- can be‐
come operable again by further charging. Refer to
⇒ “3.6 Severely Discharged Batteries”, page 57 .
Test Prerequisites
♦ When charging a battery, the temperature of the battery must
be at least 10 °C (50 °F).
♦ The charger must be able to deliver at least 30 A charge cur‐
rent, such as on the -VAS5095A- / -VAS5900- / Battery Charg‐
er - VAS5903- .
♦ When charging with the -VAS5095A- , the Battery - A- current
draw must be measured using a current probe ( -
VAS6356/4A- ).
♦ The -VAS5900- and the -VAS5903- indicate the current draw.
Procedure
– Connect the Battery - A- to the Battery Charger and start the
charging process.
– Measure the Battery - A- charge current after five minutes.
Test Result
The charge current must be above 10% of the nominal capacity
5 minutes after charging begins.
Example
With a 60 Ah battery, the charge current must be greater than 6
A 5 minutes after charging begins.
2. Battery, Checking
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