About this replacement
Designed for Arlo, Netgear devices. Compatible models include Ultra, Ultra 4K UHD, VMS5140, VMA5400-10000S, Ultra +, VMC5040, Pro 4, VMC4040P, Arlo Ultra, Arlo Ultra 4K UHD. Replacement part numbers include A-4a, 308-10069-01. Key specifications: 3.85V, 4800mAh, Li-ion.