Delkin DD/WINGMAN-BAT WingmanHD Replacement Battery (Black) Manufactured to your original WingmanHD battery model specifications and guaranteed compatible with your POV action camera and USB wall & auto chargers High quality cells are used to ensure that your battery lasts longer between charges and can endure frequent charge cycles over time before a replacement is necessary Built in safety mechanisms constantly monitor and control the battery to prevent overheating, short circuiting, overcharging, discharging and other safety hazards