To Next PageTo Next PageWhy is my Schumacher Electric SE-1520 Battery Charger making a loud buzz or hum?
A loud buzz from your Schumacher Electric Battery Charger is typically normal and caused by transformer laminations vibrating. A hum could indicate a shorted Diode Assembly or Output Rectifier Assembly. Have the charger checked by a qualified technician.
What to do if Schumacher Electric SE-1520 is making a clicking sound?
If your Schumacher Electric Battery Charger is making a clicking sound, the circuit breaker might be cycling due to incorrect settings or a defective battery. Check the charger settings and have the battery tested. If the circuit breaker cycles when current draw is too high, check for shorted cables or clamps and replace them if necessary. For a severely discharged battery, allow charging to continue until it recovers. If it continues for more than 20 minutes, stop and have the battery checked. Also, check and correct the lead connections.
Why no reading on Schumacher Electric Battery Charger ammeter?
If there's no reading on the ammeter of your Schumacher Electric Battery Charger, ensure the charger is plugged into a working AC outlet. Check the fuse or circuit breaker. Verify good clamp connections to the battery and frame, ensuring clean connection points. Rock the clamps for a better connection. If connections are reversed, unplug the charger and reverse the clamps. Have the battery tested. Note that the ammeter may show no activity at the 2A charge rate.
General| Input Voltage | 120V AC |
|---|---|
| Maintain Rate | 2A |
| Charging Rate | 15A |
| Battery Voltage | 12V |
| Battery Type | AGM, Gel |
| Cable Length | 6 ft |
Advises replacing damaged cords or plugs immediately by a qualified service person.
Instructs to take damaged chargers to a qualified service person for inspection.
Warns against self-repair; service should only be done by qualified personnel.
Highlights danger from battery gases and stresses following instructions carefully.
Specifies charging lead-acid batteries only and prohibits charging frozen or overcharged batteries.
Advises wearing protective gear and washing skin or eyes immediately if exposed to battery acid.
Warns about corrosive sulfuric acid and procedures for safe handling and cleaning.
Details steps for connecting charger clips to the battery and vehicle chassis for negative/positive ground systems.
Provides instructions for safely connecting the charger to a battery removed from a vehicle.
Covers safe use of the grounded AC plug and electrical outlet, warning against alterations.
Provides detailed steps and safety precautions for jumpstarting a vehicle's engine.
Addresses issues like dead AC outlets or open fuses and circuit breakers.
