IIRC, "synch" on a Link Lite means it thinks the bank is full (I haven't reread the directions today).
If so, your idea that changing the default parameters will "fix" that is pretty good.
What you might be experiencing is where the bank is actually full, your fridge kicks on, and the cycle starts all over again when the charger fills up the bank.
I'd reset the LinkLite completely, from like a cold start, which would include the parameter changes, and make sure your bank is full before you light it back up.