About this replacement
Designed for Netgear, Arlo devices. Compatible models include Arlo Ultra, Arlo Ultra 4K UHD, VMS5140, VMA5400-10000S, Ultra +, VMC4040P, Ultra, Ultra 4K UHD, VMC5040, Pro 4. Replacement part numbers include A-4a, 308-10069-01. Key specifications: 3.85V, 5200mAh, Li-ion.