Built-in protection circuit (PCM) prevents over charging/discharging.
Replacement Battery For BEATS Solo 2.0/Beats Solo 3.0 AEC353535A 350MAH
Zgszmall Replacement AEC353535 Battery For Beats by Dr. Solo 2 & Solo 3 Wireless Headset 3.7V 350mAh
Beats Powerbeats 2 / Powerbeats 3 Rechargeable Battery - 3.7V 90mAh LiPo 481221
Beats Studio 2.0 Rechargeable Battery - 3.7V 560mAh LiPo AEC643333
Replacement Top Headband For Beats Studio 2 wireless Wired Studio 3 Wireless
Battery For BEATS Studio 2.0
