2000 gem battery problem

I have a 2000 gem e825 that I just replaced the batteries but when I turn on the battery switch it go on then turns it self off like it’s losing power. Any help would be appropriated

What is the battery voltage? Are there any error codes displayed such as numerical or blinking lamp with beeping noise? Are the batteries connected in the right sequence - + - + - + - + ?

Daniel

Thanks for the reply one battery was wrong and I fixed it but I still get a -4 code and switched the emergency brake switch and still getting the code

Is the switch adjusted properly? #4 is Emergency Brake circuit is open and brake is not fully off either mechanically or by switch position.