I understand from the FAQ that the OpenSprinkler controller has nonvolatile memory and a battery backup for the clock. But how about for extended periods? Being an electricity miser, I would like to power it down for the whole winter, 6 months.
Is the clock battery “rechargeable” so that it can be run down without too much damage, and when I power it back up in March, it will recharge and the clock will resync itself from the network, and my programs will still start up and everything will just work?
You can just unplug the power and it doesn’t matter how long you power it down for. The next time you power it back up, it always checks and syncs with network time first, there is no need to manually set the clock, it will just work fine.