DHC 50113 Electronic tester

SKU: DHC-50113

Load tester
12/6V
100A
 
 
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999.000Ft

If the load indicates poor battery condition, allow the battery to stabilize for a few minutes and check the open circuit voltage by voltmeter. This is a good measure of the percent charge in the battery. The battery is considered charged if it measures 75% or more. If it failed the load test with 75% charge, it should be replaced. If the battery charge measures less than 75%, it should be charged and load tested again. Replace the battery if it fails again. The values in the following charge are for a 12 volt battery; divide these in half for 6 volt batteries.

 

OPEN CIRCUIT VOLTS* PERCENT OF CHARGE
11.7 Volts or lower 0
12.0 25
12.2 50
12.4 75
12.6 or higher 100
LOAD TEST BATTERY CONDITION
OK (GREEN BAND).

After 10 seconds of load.

 Battery capacity is good. May or may not be fully charged. Determine state of charge by checking specific gravity (use hydrometer). If gravity is less than full charge, check for possible charging system trouble or electrical drain. Recharge

battery to full charge.
WEAK OR BAD, BUT

STEADY (meter reading steady after 10 seconds of load).

 Battery capacity is unsatisfactory. Battery may be either: (1) defective or (2) partly discharged. To determine which, check specific gravity. If gravity is over 1.225, battery is considered defective. If gravity is under 1.225, recharge battery and

re-test. If cell-to-cell gravity varies more than 0.025 (25 points), cell trouble may exist. If charging does not bring gravity to full charge level, the battery is either

sulfated or has lost active material.
WEAK OR BAD AND

FALLING (meter continues to fall after 10 seconds of load).

 Battery may be defective (e.g. a bad cell). For a quick check, release load switch and note volt meter reaction. If voltage recovers to 12.0 volts or more in a few seconds battery is probably defective. If voltage recovers slowly, battery may be only very run down. For more accurate results, check gravity and follow above procedure.
SKU: DHC-50113 Category:

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