I've recently read several articles about Li-ion batteries and found that all of them lack of integrity. So I thought, it would be a good idea to make a post here to gather all the information found on the internet in one place, so users of modern gadgets can use it like a full-and-supplementable guide.
From what I've found.
1.Usage and charging:
- It is free to charge the Li-ion battery whenever you want, as it has no memory-effect compared to Ni-MH ones.
- It is a good practice to not let your device discharge to levels less than 20% and avoid deep discharges
- Do not overcharge battery and don't charge it with very high currents. (If you use proper charging adapter, the electronics will do everything for you, so as user you have nothing to worry about here. It is also safe to charge your gadget designed to charge with 5V/1A using 5V/2A as well, because build-in electronics will cut the excessive currents, just be sure the voltage fits.)
- When used on cold temperatures (below 5°C/41°F) battery will discharge in faster and charge in slower rates, so avoid this, if possible.
2.Explosions danger. Li-ion battery can explode in several cases:
- Overheating. Avoid heavy usage on high temperatures
- Physical damage. Avoid using damaged batteries.
- Manufacturing defect. Nothing we can do here, unfortunately.
- Best condition is to store Li-ion batteries at a charge level of about 40% in a dry cool place. They have a self-discharging effect, so in best case during long storage it is good practice to recharge them for that amount.
Now 3 of my questions:
1. Did I forget smth? Any additions will be much appreciated.
2. I rly wonder if a properly stored battery can explode by itself in certain circumstances?
3. Is it safe to store old deeply discharged batteries at home, or there is a risk of accidental explosion and they should be re-cycled as soon as possible.
p.s. sorry for the long post but I hope, I am doing good things now.