Walter A Wood. Duracell DURDL1/3NBPK Specialty Battery DL1/3N 3 V
Duracell 1/3N 3V 1/3 N CR1/3N Battery 5000394003323 | eBay
Amazon.com: Synergy Digital Replacement Battery, Compatible with Duracell DL1/3N Replacement Combo-Pack Includes: 5 x COMP-15 Batteries : Health & Household