Viessmann 7450156 Backup Battery Replacement

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Viessmann 7450156 Backup Battery Replacement, Desolder the battery: crwdns2935265:00crwdnd2935265:01crwdnd2935265:03crwdne2935265:0

Viessmann 7450156 Backup Battery Replacement, Desolder the battery: crwdns2935265:00crwdnd2935265:02crwdnd2935265:03crwdne2935265:0

Viessmann 7450156 Backup Battery Replacement, Desolder the battery: crwdns2935265:00crwdnd2935265:03crwdnd2935265:03crwdne2935265:0

Desolder the battery

Desolder the negative connection.
Desolder the positive connection.
See this guide on how to solder and desolder connections.

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