Mitsubishi i-MiEV Emergency Response Manual page 27

 Drain hole locations on Main drive lithium-ion battery
Service hole lid:
Remove the service hole lids on the bottom of the Main drive
lithium-ion battery and drain the Main drive lithium-ion battery.
Front end of Main drive lithium-ion battery:
Use a drill (size φ6 or less) to drill drain holes in the five marked
locations on the front bottom of the Main drive lithium-ion
battery. Then drain the Main drive lithium-ion battery.
Rear end of Main drive lithium-ion battery:
Use a drill (size φ6 or less) to drill drain holes in the five marked
locations on the rear bottom of the Main drive lithium-ion
battery. Then drain the Main drive lithium-ion battery.
CAUTION:
Process the drained water from the pool or the Main drive lithium-ion battery according to the rules
of local governments etc. as industrial waste properly. Since the drained water is an aqueous
solution containing a small amount (1 to several ppm) of metals such as P (Phosphorus) and Li
(Lithium) etc., advise industrial waste disposer for proper disposal.
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