have the lithium battery operated in a polar clock used rather for a week to use the clock without them, the battery is still a voltage of 1.7V instead of 3.2V at the beginning. Normally the clock is 1/2 -1 years keep depending on use of the heart rate monitor. Now used by the Second'll see how long that lasts. wants to train two hours tomorrow. All cells were after maximum one week empty. This can not be Varta
