crwdns2936637:0crwdne2936637:0 crwdns2853008:0crwdne2853008:0 crwdns2918746:0crwdne2918746:0

crwdns2944351:0crwdnd2944351:0Sennheiser HD 4.50 Battery Replacementcrwdnd2944351:0crwdne2944351:0

crwdns2933797:0Leafy Williamscrwdnd2933797:0crwdne2933797:0

crwdns2936045:0crwdne2936045:0 crwdns2933505:0crwdne2933505:0 Nick Schultz

crwdns2933769:0crwdne2933769:0
crwdns2933771:0crwdne2933771:0
crwdns2933801:0crwdne2933801:0
Introduction
This guide will demonstrate how to replace a faulty battery for the Sennheiser HD 4.50 BTNC. If the device does not respond when buttons are pressed, the battery might be the [[Sennheiser HD 4.50 Troubleshooting#Section_Faulty_battery|issue]]. Before beginning this repair, the headphones should be disconnected from any external power source, such as a charger.