Schumacher Electric SE-1520

Questions and Answers

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William KnappAug 19, 2025
What to do if Schumacher Electric SE-1520 is not charging?
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  Elizabeth CarterAug 19, 2025
  If your Schumacher Electric Battery Charger is on but not charging the battery, the clips may not be making a good connection. Check for poor connections at the battery and frame, ensure the connecting points are clean, and rock the clips back and forth to improve the connection.
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Maria Snyder PhDAug 21, 2025
What to do if Schumacher Electric Battery Charger won't turn on?
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  Carol MillerAug 22, 2025
  If your Schumacher Electric Battery Charger isn't turning on even when properly connected, the issue might be a dead AC outlet or a poor electrical connection. First, check the fuse or circuit breaker that supplies the AC outlet. Also, inspect the power cord and any extension cords for loose plugs.
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steveguzmanAug 25, 2025
Why Schumacher Electric SE-1520 ammeter reading stays high?
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  David CarterAug 25, 2025
  If the ammeter reading on your Schumacher Electric Battery Charger remains high, it could be due to a severely discharged battery or using the wrong battery voltage. Try charging the battery for an additional two hours. If the problem persists, have the battery tested. Also, make sure you are charging a 12 Volt battery.
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jessica04Aug 26, 2025
What to do if Schumacher Electric SE-1520 makes a clicking sound?
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  jeffery75Aug 26, 2025
  If your Schumacher Electric Battery Charger is making a clicking sound, the circuit breaker might be cycling. This can happen due to incorrect settings, a defective battery, shorted battery cables or clips, or a severely discharged battery. Check the charger settings and have the battery tested. Inspect the cables and clips for shorts, replacing them if necessary. If the battery is severely run-down, allow charging to continue. If clicking persists after 20 minutes, stop charging and have the battery checked. Also, ensure the lead connections are correct.
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Victoria LucasAug 28, 2025
What to do if Schumacher Electric SE-1520 Battery Charger has short start cycle?
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  Gregory ClarkeAug 28, 2025
  If you're experiencing a short or no start cycle when cranking the engine with your Schumacher Electric Battery Charger, several factors could be at play. You might be drawing more current than the Engine Start rate allows, or you may not be waiting the required 6 minutes between cranks. Poor connections at the battery and frame, loose AC or extension cords, lack of power at the receptacle, an overheated charger, or a severely discharged battery could also be culprits. Ensure you wait 6 minutes between cranking attempts. Check all connections and power cords. If the charger is overheating, make sure the vents are clear and allow it to cool. For a severely discharged battery, try charging it at the 55 amp rate for 10-15 minutes before attempting to crank.
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Sabrina YoungAug 30, 2025
Why Schumacher Electric Battery Charger ammeter has no reading?
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  William HallAug 30, 2025
  If the ammeter on your Schumacher Electric Battery Charger shows no reading, several issues could be the cause. First, ensure the charger is plugged into a working AC outlet and check the fuse or circuit breaker. Next, verify that the clips are making good connections to the battery, ensuring the connection points are clean. If connections are reversed, unplug the charger and correct them. The battery itself might be defective, so have it checked. Also, note that the ammeter may not show activity at the 2A charge rate.
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Amber JohnstonSep 1, 2025
Why Schumacher Electric SE-1520 ammeter reads less than selected charge rate?
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  John ShawSep 1, 2025
  If the ammeter on your Schumacher Electric Battery Charger reads less than the selected charge rate while charging a discharged battery, it could be due to a long or thin extension cord, a weak cell or sulfated plate in the battery, or the battery being only partially discharged. Try using a shorter or heavier gauge extension cord. A sulfated battery may eventually accept a normal charge if left connected. If the battery does not take a charge, have it checked. Continue charging the battery.
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snyderchristinaSep 3, 2025
Why does Schumacher Electric Battery Charger make a loud buzz or hum?
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  colemcconnellSep 3, 2025
  If your Schumacher Electric Battery Charger is making a loud buzz or hum, it's likely due to the transformer laminations vibrating (buzz) or a shorted Diode Assembly or Output Rectifier Assembly (hum). This is generally a normal condition. However, it's recommended to have the charger checked by a qualified technician.
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melissa90Sep 5, 2025
Why does Schumacher Electric Battery Charger ammeter reading stay high?
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  Natalie HoganSep 5, 2025
  If the ammeter reading on your Schumacher Electric Battery Charger stays high, it could be due to a severely discharged battery or using the wrong battery voltage. Continue charging the battery for two more hours. If the problem persists, have the battery checked. Also, make sure you are charging a 12 Volt battery.
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marc44Sep 7, 2025
What to do if Schumacher Electric SE-1520 engine start does not work?
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  Carl Aguilar MDSep 8, 2025
  If the engine start function on your Schumacher Electric Battery Charger isn't working, it could be due to drawing more than 150 amps, not waiting 3 minutes between cranks, the charger overheating, or a severely discharged battery. If cranking draws more than 150 amps, crank time may be less than 3 seconds. Wait 3 minutes before the next crank. Ensure the charger vents are not blocked. For a severely discharged battery, charge for 10 to 15 minutes to assist in cranking.