WP 34s battery problem

[Elite]

Hello,

I know that this has been dicussed but I'm really having problems with the battery:

When I try to enter something the calculator keep dying and after pressing ON shows RESTORED.

I have tried putting new batteries but after two weeks the same symptoms appear rather quickly again.

The batteries are CR2032 GRUNDIG and are supposed to be 200mAh.

When a prorgam with BATT inside is run the result ranges from 2.3 - 2.5, but without load that is 2.9 - 3.0.

I haven't used the WP 34s much, just for quick calculations so I am wondering is the anything that could be done?

Maybe use other batteries?

NB: 34S 3.3 T 3695