Amazon.com: Lenovo 0A36307 ThinkPad 9 Cell Extended Life Battery 44++ for Lenovo ThinkPad X220, X230 Models Only. (Caution: Not for X220 Tablet, X230 Tablet Models) : Electronics
Lenovo ThinkPad X220 really does get 20+ hours of battery life (sort of) - Liliputing
42T4967 IBM Battery and Backup
The "ultimate" Thinkpad - Cal Bryant
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
42T4967 IBM Slice Battery 19 for ThinkPad X220 (Refurbished)
would it be theoretically possible to connect an X230 slice battery to a T430? they use the same dock connector so if the whitelist was removed and the plastic thats in the