Ghee:

It is just a chage log with 480 boxes of 30 columns x 16 rows. It also shows initial charge date. I'll be happy if the battery packs last until the last box is marked and if the capacity is good enough after that... well that is freebee.

1st pack has 90 charges
2nd 65
3rd 34 <- since April 2005

3 packs are chaged as shown at home ( in my driveway ) then they are field charged with 80ah car battery in a custom box with banana terminals. While it is being depleted, 1000w generator replenishes with its 12v outlet and another 12v 24a radioshack power supply plugged into 110v outlet for additional 2 astro 109 chargers.

This allows me to continuously charge 2 packs while I'm flying the 3rd.
After flying the 3rd home charged pack, there is a bit of delay 10-15min before I can fly the 4th flight ( 1st field charged )
I really need 4th pack to fly nonstop.