DO-IT-YOURSELF MAINTENANCE - ELECTRICAL COMPONENT
Battery Recharging Precautions		 Do-It-Yourself Maintenance - Electrical Component - Checking the Battery Condition and Fluid LevelDo-It-Yourself Maintenance - Electrical ComponentDo-It-Yourself Maintenance - Electrical Component - Checking and Replacing FusesSupra Handbook
 

During recharging, the battery is producing hydrogen gas.
Therefore, before recharging:

  1. Remove the vent plugs
  2. If recharging with the battery installed on the vehicle, be sure to disconnect the ground cable.
  3. Be sure the power switch on the recharger is off when connecting the charger cables to the battery and when disconnecting them.

CAUTION:

Always charge the battery in an unconfined area. Do not charge the battery in a garage or closed room where there is not sufficient ventilation.

NOTICE:
Never recharge the battery while the engine is running. Also be sure all accessories are turned off.