8) Most importantly... take your spouse or partner out to dinner while you can, especially if they don't fish. They're going to miss you for a lithium facts few months.
The processor goes up to 75-85C while under pressure but rarely dips below 40C when idle. Everything else is a bit cooler of course, but 40C in the computer case is rather common even with good air-flow. If you plan on using your notebook from the charger, remove the battery first left at 40% charge. Use an air-tight plastic bag and put lithium facts it into the fridge. Do not freeze.
ONickel Cadmium (NiCd) - The oldest battery type used in cell phones. They are the heaviest and lowest capacity battery type. These can be somewhat hard to find.
Avoid using replacement that has been on lithium bettery stock for a while. During storage the battery can lose much of its capacity through internal resistance, which damages it and lowers the maximum capacity.
In terms of charging these powerful cells, when specifically used in an LED flashlight, special chargers are available all over the internet. Most will handle a 18650 battery as well as a variety of other Li-ion sizes.
So, in summary, if you have a PC which is showing clock errors or BIOS problems look first at the little 3 volt battery. It could save you a fortune. Happy computing!