Replacing the ACR9000 Battery

Battery Backup for RAM

The controller has an optional battery backup. With this option, the controller retains everything stored in RAM when power is cycled.

Battery Backup

Battery Life..............................................5 years at 25 deg C

Part numbers...........................................Tadiran TL-5242/W 2100 mAh (http://www.tadiranbat.com )

To replace the battery, you will need to remove the cover. Below is a picture of the ACR with the cover removed and shows the battery location and where it connects.

There is a velcro sticker provided with the battery

Once the battery is installed, then the user can look at the P7044 in the misc flags or type in: print P7044 from the terminal emulator window and if there is no problem with the battery, it should report 0. Or the user could issue a Diag command, and the first line in the response should be:

BCL: PASS