I don't know but be aware - many cars use the fillament of the Battery Charging light to supply excitation current to the alternator - if the lamp fails the alternator does not work and the battery soon runs flat - I have seen several cases on here where people have fitted multiple alternators to solve a battery not charging problem (££££££) when all that was needed was a new lamp (£)!
With the ignition on and the engine not running the battery charging light should be ON. The light will go out as soon as the alternator begins supplying power. If the light stays on when you rev the motor then the alternator may be defective.
You may also test with a multimeter set to DC Volts - with the engine on fast idle the voltage at the battery terminals should be in the range of 13.5 to 14.4.
Obviously needs a meter and two people to make this test.
Good luck...
Peccavi
March 2010