If you have not yet replaced the single CR-2450 lithium coin-type battery in your i-P remote, you may be in for a surprise. Only when you get to the Remote Battery Replacement page in the Owner's Manual do you discover that all CR-2450 batteries are not the same! The Manual warns that Panasonic brand batteries will not work. It doesn't warn that other brands of CR-2450 cells also don't work!

Apparently, there are differences in the dimensions of cells by different manufacturers and the cell holder on the circuit board of the i-P remote is designed so it's contact points do not hit the Panasonic cell in the right places. After purchasing a supply of generic cells (possibly manufactured by Panasonic), I discovered that they will not work. The cells are fully charged, but they will not power the remote.

Since the Terrova operates with either the remote or foot controls, I can always put the remote aside and finish my day using the foot control. Those of you who have added i-Ps to PowerDrives will not have that option. When your CR-2450 finally croaks, you'll be unhappy if your backup battery does not work. Energizer brand cells work, so my onboard backup battery for the i-P remote will be one of that brand.