Amazon.com: Rayovac RAY193 Cordless Phone Battery Replacement Battery For Panasonic HHR-P104, Type 29 : Electronics
Rayovac Batteries Size 13 1.45V (4-pack)
Exell Battery Alkaline L736 Button Batteries (10-Pack) in the Coin & Button Batteries department at Lowes.com
60 Pcs Rayovac Extra Zinc Air Hearing Aid Batteries A312 312a Za312 312 Pr41 S312 Pr41 Hearing Aid Battery A312 For Hearing Aids - Ear Care - AliExpress
Energizer Silver-Oxide 392 Button Batteries in the Coin & Button Batteries department at Lowes.com