Satellite L750/04K Replacement battery not recognised

Hi all,
I have 2 Toshiba laptops, a C650D & L750/04k. Both laptops have exactly the same battery (PA3817U-1BRS. The L750 battery failed to hold charge so I changed the C650 battery into the L750 & worked fine.
Obtained a replacement battery (PA3634U-1BAS) & charged in the C650- worked great !
But will not work in the L750!
Won't charge & PC will not turn on (indicator light is flashing amber-low battery condition).
Seems the replacement battery is not recognized. Is this a compatibility problem?
If so, what is the correct battery for L750/04K?
Any suggestions appreciated
Regards, Mooky

Hi
I found info on European page for L750 about compatible batteries and follow batteries are compatible with this notebook model:
PA3757U-1BRS
PA3787U-1BRS
PA3817U-1BRS
PA3818U-1BRS
PA3820U-1BRS
I presume the same batteries can be used on your Australian model.

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