Is this battery a direct replacement for the model e-01 that the e-04 model replaces?
No, the E-04 battery will not work as a direct replacement for the E-01 battery.
How long is the battery life on your E-04 P/N 11-10012 battery?
The battery is rated for 5 years.
Is the MSDS available for this ACK E-04 Series Replacement Battery?
Yes, we have added it to the Documents tab of this web page. Please review it there.