The battery is usually located at the back of the machine towards the top -- there may be a circuit board on top of the battery. And the second link listed below is a technical bulletin for certain models to help prevent damage to the battery during installation.
This link will take you to the 546i models and parts list. You can also find a parts diagram but you will need to match your serial numbers to the ones listed so you can pull up the correct diagram:
Repair Parts for Precor EFX 546i Ellipticals SPORTSMITH net
Answers & Comments
The battery is usually located at the back of the machine towards the top -- there may be a circuit board on top of the battery. And the second link listed below is a technical bulletin for certain models to help prevent damage to the battery during installation.
This link will take you to the 546i models and parts list. You can also find a parts diagram but you will need to match your serial numbers to the ones listed so you can pull up the correct diagram:
Repair Parts for Precor EFX 546i Ellipticals SPORTSMITH net
http://www.sportsmith.net/images/Pick_Docs%5Cp0645969101-BatteryInstallationWarning.pdf