Schumacher Automatic XM1-5 - Manual (Page 10)

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Connect the battery following the connection instructions 2.
described in Using the Quick-Disconnect Cable Connectors
section.
Connect the AC power following the precautions listed in Section 8. 3.
If you’ve connected everything correctly, the AC POWER 4. LED
will be lit indicating the charger has power, the CONNECTED
LED will be lit indicating the battery is properly connected and
the CHARGING LED will be lit indicating that the charger is
charging. If any of these LEDs are not lit, check the connections at
the battery and AC source or have the battery checked/replaced.
NOTE: This charger is equipped with an auto-start feature. It will not
supply current to the battery clips until a battery is properly connected
and the CONNECTED LED is lit. Unlike traditional chargers, the
clips will not spark if touched together.
Using The Quick-Connect Cable Connectors
Connect either of the two output cable assemblies to the charger.
Make sure to place the charger on a dry, non-flammable surface like
metal or concrete.
NOTE: Never connect the clamp and ring terminal connectors
together for use in other applications, such as external battery or
other power source charging, or to extend the output cable length, as
reverse polarity and/or overcharge conditions will occur.
Battery Clips
Connect the battery clip cable assembly to the charger. Follow the safety
instructions in sections 6 or 7 to connect the output clips to the battery.
Ring Terminals
The ring connectors permanently attach the battery providing easy
access to quickly charge your battery. To permanently attach it to
a battery, loosen and remove each nut from the bolts at the battery
terminals. Connect the red positive ring connector ring to the positive
(POS, P, +) battery terminal. Connect the black negative ring
connector ring to the negative (NEG, N, -) battery terminal. Replace
and tighten the nuts to secure it. Take care to keep both wires and
plug away from hot surfaces and sharp edges. Connect the ring
connector cable assembly to the charger. Periodically check the ring
connectors to ensure they are properly connected.