Now yes lithium battery stocks it depends on how you're using it. But the Apple creators say it will play movies solidly for 10 hours for example before the iPad battery says "feed me".
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.
In my own personal battle with alcohol, drugs (copyright) and manic depression, I had a number of showdowns with the supernatural, most of which horrified me. I believe it was hard evidence that something demonic was happening. After much research, I came to the conclusion that something certifiably demonic was at the source of my battles with mental illness and addictions.
It was not until I was able to call on the name of Jesus that I felt the presence ebb. One year later I moved to New York City--trying to move away from demons no doubt! Which is silly because they are either in you lithium bettery stock or have no problem following you wherever you go or both. The good thing was that I found a great bible-believing church in New York. I learned to pray and fast, memorize and meditate on scripture, fellowship and call on believers to pray for me.
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.
The bottom line, be gentle to your lithium-ion batteries. If you excessively charge the battery, with high voltages, and heavy load conditions, it will shorten your battery's life. It's best to charge at a slower rate.