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Lithium-Ion Battery Maintenance

Updated on June 3, 2013

Lithium-Ion Battery

Lithium-Ion Battery Maintenance

Lithium-Ion batteries have become the new standard for portable consumer electronics. Lithium-Ion batteries, or Li-Ion as they are frequently referred to, represent a significant improvement over their predecessors like the Nickel Cadmium batteries.

Lithium-Ion batteries offer twice the energy density of a standard Nickel Cadmium battery. This means that Lithium-Ion batteries allow your electronic gadgets to run much longer on a single charge. Lithium-Ion batteries also self-discharge at approximately one-half the rate of a Nickel Cadmium battery.

Lithium-Ion cells are somewhat fragile, however. A special protection circuit is required to safely operate the batteries. This protection circuit is built into each Lithium-Ion batter pack. The protection circuit limits the peak voltage of each cell while charging as well as limiting the voltage drain when discharging. The protection circuit also monitors the cell temperature to avoid temerature extremes during charging or usage.

Lithium-Ion batteries are also low-maintenance batteries. One of the advantages of Lithium-Ion batteries is that the batteries have no "memory effect." The batteries do not require scheduled cycling to maintain them. Despite the fact that Lithium-Ion batteries are low-maintenance, there are some steps you can take to extend the life of your Lithium-Ion battery.

  • Charge Lithium-Ion batteries fully (preferable overnight) before beginning to use the battery
  • Fully charge and discharge Lithium-Ion batteries 3-4 times to allow the battery to reach its maximum rated capacity
  • Clean the battery contacts on the Lithium-Ion battery and the device with alcohol and a cotton swab if the contacts become dirty
  • Use the Lithium-Ion battery at least every 2-3 weeks
  • Keep Lithium-Ion batteries fully charged when not in use
  • Charge Lithium-Ion batteries regularly
  • Avoid regularly running Lithium-Ion batteries too low
  • Never leave Lithium-Ion batteries discharged for long - the batteries do self-discharge and the charge could drop low enough to damage the battery
  • Keep Lithium-Ion batteries out of high heat -high temperatures may cause premature battery failure
  • Store Lithium-Ion batteries partially-discharged in a cool, dry place if you will not be using the battery for several weeks

Unfortunately, Lithium-Ion batteries are prone to aging somewhat rapidly. The useful capacity of a Lithium-Ion battery decrease by around 10% each year. Lithium-Ion batteries also only have a useful service life of 2-3 years. These batteries begin aging when they are manufactured - not when you begin using the battery. Manufacturers usually anticipate a life expectancy of 300-500 discharge cycles.

Nickel Cadmium batteries were the only viable option to power portable electronics for many years. The first non-rechargeable Lithium batteries were developed in the 1970s. However, early Lithium batteries were not able to be recharged due to the instability of the Lithium - particularly during charging.

Lithium is ideal for batteries in many ways.

  • Lithium is the lightest metal
  • Lithium has the highest electrochemical potential
  • Lithium offers the highest engery density for its weight
  • Lithium-Ion batteries are more environmentally friendly when disposed of than other battery types

Researchers subsequently turned their attention to the development of a much-safer, Lithium-Ion battery. Non-metallic, Lithium-Ion batteries have a somewhat lower energy density than Lithium Metal batteries but are much safer to recharge. Sony released the first commercially-available, rechargeable Lithium-Ion battery in 1991. Other companies soon followed and the Lithium-Ion battery has quickly become the standard battery for portable consumer electronics.


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    • profile image


      6 years ago

      bad article. People might even think they are supposed to store batteries for 3+ months at 100% charge.

      NOTE: Optimal storage charge to preserve Li-ion battery life capacity is 40%-50%.

      I've heard about the three full cycle on first use (after long periods of storage) to allow the battery to achieve its best, but have yet to encounter an explanation as to how and why that occurs. Do you have any information about this?


    • slitter profile image


      8 years ago from Ipswich, UK

      Great article - it amazes me that dispite the fact lithium-ion batteries are now used in so many consumer devices nobody seems to give a thought to their care! I'm sure many folk ditch their cellphones when all they really need a new battery!

      If you're interested in how lithium ion batteries are manufactured you might like to read this short article

    • profile image

      Google User 

      10 years ago

      TY for the tips on li-ion maintenance. I will avoid letting my li-ion cell phone battery run low from now on. Thanks!

      I use a $30 Nokia phone, it's lasted me 1.5 years so far.

      The Battery still lasts a long time.

      No need for phone insurance on a $30 phone.?


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