New Battery A-4a For Arlo Ultra 2, Arlo Pro 3 Pro 4 Camera VMA5400 VMC5040
VMS5440B-100NAS, VMC5040(B)-100NAS. For ARLO PRO 3. ARLO PRO 4. ARLO Ultra. ARLO Ultra 2. Remove the old battery, carefully install the new battery on the battery box, tighten the screws, and then connect the wires of the new battery.