[sirmaru]

When I first received my Kindle Paperwhite, I kept a session record in an Excel spreadsheet noting start and stop times and minutes spent reading with the PW.

After a full cycle I noticed I got 10 hours and 29 minutes down to the Recharge screen (large battery icon + wire icon + power icon).

Since then I've noticed I average 7 or 8 days to a recharge with the meter nearly empty. In my current cycle I'm at 13 days with the meter showing low but not yet at the Recharge screen.

This compares with 6 hours per the GSam Monitor down to the 10% level for the KFHD7-32 over 4 to 6 days and 30 to 38 days with the Kindle Keyboard WiFi. The KF1G only averaged about 5 hours and 15 minutes down to the 10% level.

I find the PW lasts longer and longer if one keeps using it down to the Recharge screen. Most folks charge when the meter shows about 40% and may get much shorter reading times due to that practice.

Exact battery measurements are only possible using the GSam Monitor on the Kindle Fire.