How Often Should I Charge the Blue2? October 18, 2021 13:12 Updated For optimum performance and battery life, we recommend charging your Blue2 overnight after each day of use. Related articles How do I configure Blue2 with my speech app? Getting Started With Blue2 Bluetooth Switch How long does the Blue2's battery last? Pairing Issues with Blue2 Is there a way to customize the Blue2 for custom keystrokes?