Question about Schumacher & Fast Charge Starter Charger

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Schumacker battery charger problem?

I have a Schumacker Model 1052A-PE Trickle/Battery charger/Engine start rated at 2/10/50 A.

I want to charge a 80 AH car battery. When I put the charger on the battery the following occurs:

1) No charger connected Battery Voltage = 5.62 V
2) Charger connected but not on Battery Voltage = 2.45 V
3) Charger on at 2A position Battery Voltage = 13.33 V
4) Charger on at 10A position Battery Voltage = 14.23 V
5) Charger on at 50A position Battery Voltage = 15.93 V

At any of these positions, the charger Ammeter always reads zero. It never gives a reading other than zero. The meter gives a little "bip" near zero when I change from 2A to 10A. I can always hear the transformer hum.

Am I charging the battery? I can leave the charger on over night and the battery never reads 12V.

Do I have a bad battery that won't take a charge, or a bad meter that won't indicate current or a bad battery charger?

Thank you for your help.

Henry Knoll

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  • Henry Knoll Mar 11, 2009

    Unfortunately, that's not what the manual says. It says on the 10
    A setting, the meter should start out reading 10A and then gradually
    taper off as the battery charges.



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  • 102 Answers

You are charging. The meter corresponds to the level of charge in the battery. Try setting to 10 A for 4 hours, battery should be half-way up. To determine if battery id dead.. leave battery off charger once it is fully charged...test with a voltmeter after 10 min.....battery should still be above 12v...after1 hour it should still be above 12v...if not battery is spent.

Posted on Mar 11, 2009

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