We recommend using the engine start/cranking assist feature on your charger for 3 to 5 seconds on and 5 minutes off. See the front panel of your charger for the recommended crank time your charger allows. Charge the battery for 15 minutes before using engine start/cranking assist. After 15 minutes of charging, set the selector switch to the Engine Start/Cranking Assist position. Then try to start the engine using the ignition switch.
If the engine fails to start within 3 to 5 seconds, stop cranking and begin the cranking process again by charging your battery for another 10 to 15 minutes.
NOTE: You should not attempt to charge your battery on the engine start setting. Doing so could cause damage to your battery or cause other property damage or personal injury. Recommended cranking assist cycles less than 5 seconds are in place to allow the charger to dissipate the heat generated by the increased power output through the transformer. Exceeding the recommended time duration of your charger's cranking assist cycle can cause damage to the charger's internal circuitry.