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Due to the nature of lithium ion batteries, the volatility and the power they can be rather expensive. Since they are expensive, it only makes sense to make the battery last as long as possible. The first tip to elongating the life of your battery is the discharge cycle. Lithium ion batteries prefer a partial discharge compared to a deep discharge. A deep discharge is similar to a car battery, it requires a large amount of the battery to be used before recharging. It is best to avoid taking the charge to zero for lithium ions. These batteries do not require a memory, so a partial discharge will not harm them.