You can easily change the RTC coin cell battery with no soldering
Soldering only comes in to play if you want to get rid of the coin cell all together
With some laptop usage/charging patterns the coin cell would empty to dead easily and I would not hold a charge well anymore after that. So even if replace the coin cell, your usage pattern could kill the next coin cell as fast as the previous one. Hence the need/want for the battery bypass








about 6,7-11,2 €/L