Plug the transformer back into the outlet or reconnect the LT Cable.Reconnect the front cover to the back cover.Install the battery retainer and secure with screws.Place the new battery in the case and plug the new battery into the battery connector.Unplug the battery from the battery connector on the panel and remove.Using the same screwdriver, unscrew the battery retainer and remove.Open the Lynx Touch L7000 using a flathead screwdriver and press the tabs located on the top of the panel.Once the system is on test, power down the Lynx Touch L7000 by removing the transformer from the outlet or separate the male barrel connector from the female port if an LT Cable was used. Then disconnect the battery lead from the board and connect the leads from the replacement battery.īefore changing the battery, if the system is monitored, contact the monitoring provider and place the L7000 system on test to prevent any false alarms. Press both tabs along the top of the panel firmly and swing open the keypad. The Honeywell Lynx Touch L7000 is a self contained alarm system so the backup battery is located directly inside.