Grrr Weather station lost some of it's sensors

[The PIT]

These go via a wireless repeater due to reception issues in one of my rooms.

Replaced the battery came back then went off. The battery wasn't totally new.

Put a new one nothing then came back a few hours later.

Supercap problem I thought.

Yes I was right except there's two  50 uf caps still at 2.7v on a 3v line. So of course will go pop.

Ordered some 3v 50uf from Farnell. They shouldn't go pop.

I'm stunned that we still have this design fault.

[The PIT]

Cap replaced showing the expected low battery as the new cap charges up. One cap was fine so left it be for now.