I just
threw away 7 out of 10 CE3 from TW with 4/5 bad in the last shipment. I figured I'd get the latest set since they are selling them cheap and I'm primarily using them on a manual battery which is less likely to short. Well needless to say I'm not a happy camper. The problem with the cracking appears to be around the wick entrance.
I started noticing wetness and sure enough it started dripping
through the bottom air intake and in a few minutes most of my liquid was gone.
Back to the search - love the idea - don't like the implementation.