RadioShack 43-5862 (Handset) Battery - Replacement for RadioShack Cordless Phone Battery (800mAh, 3.6V, NI-MH) Replacement RadioShack 43-5862 (Handset) Battery Replacement for RadioShack Cordless Phone Batteries Lifetime Warranty Capacity: 800mAh, Upstart Battery Brand On Sale for a Limited Time!