XO battery/performance [Devel Digest, Vol 76, Issue 21]

[Richard Smith]

> 1) Connect XO 1 or 1.5 to external power.
> 2) Boot the machine and stop at the open firmware prompt
> 3) Allow battery to charge up up until full.
> 4) print out the ACR with:
>   ok bg-acr@ .bg-acr
> 5) remove battery
> 6) record the printed ACR number somewhere
> 7) Note time of battery removal
> 8) Wait 24 hours.
> 9) repeat steps 1-4

I see I was a bit hasty here and this is not quite correct.  Step 3
should be skipped and replaced with:
ok batman-start

That way the EC battery subsystem is disabled and it won't try to
charge.  Then you can do step 4.

> 10) subtract the 2 ARC numbers to the the net ACR.

10) subtract the 2 ACR numbers to get the net ACR.

-- 
Richard A. Smith
One Laptop per Child