Laptop battery is easy to be broken slowly, not really 'broken', but the battery performance will be down, everyone need to taking care battery than its laptop.
Do not use heat battery because its power capacity will be reduced faster, put off the battery away from the laptop if there is another power supply, it is very recommended, in this case the battery will not be over-powered or used.
Using laptop on the bed is harm the laptop. do not use battery on the soft surface which absorptive to heat, because the temperature of the battery will not be reflected to the air and will be trapped on it.
Also avoid colliding battery to any hard surface, it can be reducing power capacity of the battery. To get more extra life time of battery, avoid the light of the sun through directly to the battery.
Check the fan of the laptop whether it is working, if it is not, do not use the battery (and also the laptop) because overheat is very harmful to them. Avoid magnetism stuff around the battery, it can reduce the battery life and power capacity.
Do not charge the battery when it is in full power or almost, over-charged is also harm the battery.
And the last, do not ever force to use the battery to keep working when the laptop is on fully heat, it will 'kill' the battery life time by boiling it.
