# UK (en_GB)
45N2170
45N2100
45N2240
List of FRU's from the x220 Hardware Maintenance Manual
# 4 cell 2.0Ah
`42T4899`
`42T4901`
# 6Cell 2.8Ah
`42T4861`
`42T4865`
# 6 Cell 2.8Ah 47+
`42T4873`
`42T4875`
# 9 Cell 2.8Ah 47++
`42T4940`
`42T4942`
# Slice battery
`42T4903`
Link for Lenovo Battery Recall details and battery test software