Hi, not sure what to do, perhaps you can provide some more details, I had some problems with batteries on laptops, I'll try to help
> OpenBSD 4.9 (GENERIC.MP) #794: Wed Mar 2 07:19:02 MST 2011 > dera...@i386.openbsd.org:/usr/src/sys/arch/i386/compile/GENERIC.MP did you use this kernel before when it worked? > acpibat0 at acpi0: BAT0 not present It says battery absent on boot. Are you booting without battery and insert it later? Btw: Does the battery work at all? What Laptop is it exactly? The battery may simply be broken ... regards Matthias
