Since 1965 Lenmar has been building award winning, high quality power related products. Lenmar personally manages the excellence of our products through every aspect from design to production. Fits: Calculated Industries KitchenCalc, Pocket Real Estate Master, ProjectCalc Plus, RadioShack 10-Key Timer 65-878, 65-504, EC444 65-888 Replaces: Gold Peak GP186, Philips 386 Specifications: •Voltage: 1.55V •Capacity: 120mAh •Chemistry: Silver Oxide •Warranty: 30 Days