How long will a Lithium-Ion battery last?
A battery that has not been subjected to warm temperatures or allowed to remain in a fully discharged state for more than a few weeks and has always been ‘topped-up’ rather than fully discharged every time, should last 2 to 3 years. However, at the end of this period, the battery will probably only last half as long as it did when it was new, or even less. Lithium-Ion batteries are rated for 300-500 full discharge cycles, after which time they will deteriorate rapidly. In practice, this means that if a school uses the notebooks twice a day, every day, the batteries will only last one year or so. However, if you employ a method of frequent top-ups between use (ie do not allow the battery to become almost fully discharged) then you should get 2 or 3 years of use from them. During this period however, the length of time that a full charge will last will decline by as much as half. The biggest enemy of the Lithium-Ion battery is heat. You should ensure that when you charge and store your N
