DIYElectrical -> Battery recharging precautions for Your Toyota 4 Runner SUV Third Generation (1996-2002)

’01 4Runner_U (L/O 0008)  
—Checking battery fluid  
Battery recharging precautions  
During recharging, the battery is pro-  
ducing hydrogen gas.  
NOTICE  
Type A  
Clear or  
light yellow  
z Be sure the engine and all accesso-  
ries are off before performing main-  
tenance.  
Therefore, before recharging:  
Green  
Dark  
1. If recharging with the battery installed  
on the vehicle, be sure to disconnect  
the ground cable.  
z When checking the battery, remove  
the ground cable from the negative  
terminal (“−” mark) first and rein-  
stall it last.  
Type B  
Blue  
2. Be sure the power switch on the re-  
charger is off when connecting the  
charger cables to the battery and when  
disconnecting them.  
White  
Red  
z Be careful not to cause a short cir-  
cuit with tools.  
CAUTION  
z Take care no solution gets into the  
battery when washing it.  
CHECKING BY HYDROMETER  
D Always charge the battery in an un-  
confined area. Do not charge the  
battery in a garage or closed room  
where there is not sufficient ventila-  
tion.  
Check the battery condition by the  
hydrometer color.  
Hydrometer color  
Condition  
D Only do  
a
slow charge (5  
A
or  
Type A  
Type B  
less). Charging at a quicker rate is  
dangerous. The battery may ex-  
plode, causing personal injuries.  
Green  
Blue  
Good  
Charging necessary.  
Have battery  
Dark  
White  
Red  
checked by your  
Toyota dealer.  
Clear or  
light  
yellow  
Have battery  
checked by your  
Toyota dealer.  
2001 4RUNNER (OM35768U)  
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