Amazon.com : ecoEfficiency 2 Pack of Fully Decoded EN-EL14, EN-EL14A Batteries and Dual Battery Charger for Nikon D3400, D3500, D5600 Digital SLR Camera : Electronics
Amazon.com : Nikon D3400 DSLR Camera with AF-P DX NIKKOR 18-55mm f/3.5-5.6G VR and AF-P DX NIKKOR 70-300mm f/4.5-6.3G ED : Electronics
Amazon.com : Vivitar Deluxe Power Battery Grip for Nikon D3400 Bundle with Rechargeable Li-ion Battery, Individual Charger for Nikon, ens Cleaning Pen and Universal Shutter Release Remote Control : Electronics
TWO 2X EN-EL14A, ENEL14A, Batteries for Nikon D3400, D3500, Digital Camera 634563540040 | eBay