Compaq 620"?
that charge, data is useless, ill tell you why later.
does the LT run with no battery? never post lacking this fact.
IT must, or the power pack is bad or the PC is bad.(ask)
this is always test 1, if yes, the battery bad.
never seen any battery this old good,
not one.
I guess this is the old Compaq 620 that HP mutated to HP 620
no service tag presented so ,no really good answers possible
"I tried to take out the battery and leave the laptop the whole night without the battery, but still my laptop does not come on.
(tried?)
so does that mean the battery is out, or in.? NOW?
try to be clear, as we can not do the simple tests nor watch you do them.
runs on wall power pack, A/C line 19vdc power pack.>?no battery.
IT MUST OR THE PC needs service. (or the A/C pack is weak(bad)
pC is like 2010 year. no battery lasts this long,
if the PC is dead, with no battery , with power pack only used,
then see here, for black screens, or dead BIOS.
http://pcdied.com/
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