TOYOTA 2011 Avalon - Manual (Page 428)

4
Mai
n
tenan
ce and care
405
4-3. Do-it-yourself maintenance
AVALON_U (OM41428U)
Battery
Check the battery as follows.
n Battery exterior
Make sure that the battery terminals are not corroded and that
there are no loose connections, cracks, or loose clamps.
Terminals
Hold-down clamp
n Before recharging
When recharging, the battery produces hydrogen gas which is flammable
and explosive. Therefore, before recharging:
l If recharging with the battery installed on the vehicle, be sure to discon-
nect the ground cable.
l Make sure the power switch on the charger is off when connecting and
disconnecting the charger cables to the battery.