Re-Celling an Extended Slice Battery - Thinkpads Forum
Original Lenovo ThinkPad X220 X220T X230 X230T Slice battery 0C13380 0A36280 in United States|original canon batteries|battery bellbattery sealed lead acid - AliExpress
Just bought a quirky x220 slice battery. Looks exactly like a 19+, but says 20+. Works completely fine with 1% wear. Does anyone know what it might be? : r/thinkpad
Amazon.com: Compatible para Lenovo ThinkPad Slice Batería compatible con ThinkPad X220 X220s X220i Tablet 65Wh 42T4967 : Electrónica