IBM – ibm thinkpads sort 2373 and 1830 – one boots, one does not

guys,

I simply bought 2 batteries for my previous 2 IBM LT’s.  per the title, these are the categories.  the 2373 does not boot, although the batt is in and it’s plugged into the wall.  1830 does.  nevertheless, I get the display on the 1830 you see within the picture.  anybody ever seen this?  these 2 LTs have been useless for actually 10 years or extra.  I am simply getting them again to life with the aim of giving them away.  I will put large quantities of free software program on each if I can determine what’s flawed.  any perception from you guys?  they’ve by no means been hacked, and should have no malware on them wherever.  maybe the display I see within the picture is a results of them not being turned on in additional than a decade?  the picture reveals what I see after typing on the keyboard and pushing enter.  initially what reveals up is simply the padlock.