NANNIO Hero2 Video Baby Monitor with Camera and Audio, Two-way Talk, Auto Night Vision, Voice Activation (VOX), 5 Lullabies, 985ft Range, Long Battery Life, Plug-and-Play, Non-WiFi, Pri - Walmart.com
3000mah Battery For Philips Avent Scd630 Scd620 Scd625 Scd833 Scd843 Scd630/37 Baby Monitor New Li-ion 3.7v Nta3460-4,nta3459-4 - Digital Batteries - AliExpress
Synergy Digital Baby Monitor Battery, Compatible with NTA3459-4 Baby Monitor Battery (3.7V, Li-ion, 3000mAh) - Walmart.com