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This battery can replace the following part numbers of :

ACER:

60.41H15.001 BTP-34A1  

This battery is also compatible with the following models of :

ACER:

Travelmate 520 Travelmate 520IT Travelmate 521
Travelmate 521TE Travelmate 521TEU Travelmate 521TXV
Travelmate 524 Travelmate 524TE