Replace P/N:
HSTNN-CB1A/HSTNN-IB1A/HSTNN-LB1A/ HSTNN-UB1A/HSTNN-CB18/HSTNN-Q78C-3/
HSTNN-Q78C-4/HSTNN-Q81C/HSTNN-I85C-4/
HSTNN-I86C-3/HSTNN-I86C-4/HSTNN-I86C-5/
HSTNN-W79C-5/HSTNN-W79C-7/HSTNN-W80C
Fit for:
CQ321/CQ325/CQ326/4321/4321S/4320S/4325S/4326S
4426S/4420S/4421/4421S/4520S/4525S Series
HSTNN-CB1A/HSTNN-IB1A/HSTNN-LB1A/ HSTNN-UB1A/HSTNN-CB18/HSTNN-Q78C-3/
HSTNN-Q78C-4/HSTNN-Q81C/HSTNN-I85C-4/
HSTNN-I86C-3/HSTNN-I86C-4/HSTNN-I86C-5/
HSTNN-W79C-5/HSTNN-W79C-7/HSTNN-W80C
Fit for:
CQ321/CQ325/CQ326/4321/4321S/4320S/4325S/4326S
4426S/4420S/4421/4421S/4520S/4525S Series