This is the best guide i drag from internet for teaching how to prolong lithium-based batteries, enjoy reading~~
Types of Rechargeable BatteriesThere are 2 main types of rechargeable batteries used with electronic devices:
Nickel based and
Li-ion batteries.
NiMH (older batteries) are prone to
memory effect while
Li-Ion batteries do not have any
memory effect. If you are using
NiMH or
NiCad (nickel based) batteries, then you will have to worry about
memory effect.
Most modern batteries are made out of
Li-ion and therefore do not suffer
memory effect. This guide does not cover your liquid-filled batteries, such as your sulfuric acid car battery.
What is Memory Effect?Memory effect is an effect that occurs after a series of charging and discharging whereby the battery does not charge up to 100%. It would assume that the charge is full even though it is much less than that. For
Nickel based batteries, you'll have to fully discharge it before charging to avoid
memory effect.
Li-ion batteries, on the other hand are not affected by full discharge.
Good Charging PracticeFor
Li-ion batteries, do not do practice full discharge and full recharge often. Unlike Nickel batteries, this practice will damage and shorten the life-time instead.
Li-ion batteries prefers trickle charge or normal charging when it is used from 10% - 30%.
There are some myths about
Li-ion batteries experiencing
memory effect. This is not true. Over time, the practice of partial recharge or trickle charge, would "confuse" the charging and sensing system. As such, calibration to the sensing system would be needed or the charging meter would indicate a wrong battery status. This is sometimes known as the "digital"
memory effect and does affect the battery cells. To avoid this, it would be a good idea for a full-discharge after 30 charges to calibrate the battery meter.
Additional Note1.
Trickle charging is the best for Li-ion. Minimize full discharge/recharge cycles. However, trickle charging is dangerous if the charger does not monitor the voltage levels correctly. This may lead to overcharging.
2.
Do not overcharge. Normally, your charger will monitor the charging. If, by any chance that the charger is faulty and overcharges, the battery cell will be permanently damaged.
Overcharge effect. The more V mean you are overcharge frequently.
3.
Minimize deep discharge (over discharge).
Li-ion batteries are not meant for deep discharge.
4.
It is good to maintain the battery cool. This prevents aging of the battery cells.
Different in temperature and charge level
5.
Consider removing the battery from a laptop when running on fixed power.
6. Avoid purchasing spare lithium-ion batteries for later use. Observe manufacturing dates. Do not buy old stock, even if sold at clearance prices.