Debunking Battery Life Myths for Mobile Phones, Tablets, and Laptops

Discussion in 'Travel Technology' started by sobore, Aug 6, 2013.  |  Print Topic

  1. sobore
    Original Member

    sobore Gold Member

    Likes Received:
    Status Points:


    Batteries need to be cared for properly — they’re a critical part of our mobile devices and battery technology hasn’t advanced as fast as other technologies. Unfortunately, there’s a lot of incorrect information about batteries out there.
    Some of the big myths come from old battery technologies and are actively harmful when applied to new battery technologies. For example, nickel-based batteries needed to be fully discharged, while modern lithium batteries shouldn’t be fully discharged.
    Perform Shallow Discharges; Avoid Frequent Full Discharges

    Old NiMH and NiCd batteries had a “memory effect” and had to be completely discharged from 100% to 0% to keep their capacity. Modern devices use Lithium Ion batteries, which work differently and have no memory effect. In fact, completely discharging a Li-ion battery is bad for it. You should try to perform shallow discharges — discharge the battery to something like 40-70% before recharging it, for example. Try to never let your battery go below 20% except in rare circumstances.
    If you were to discharge your battery to 50%, recharge it, and then discharge it to 50% again, that would count as a single “cycle” with modern Li-ion batteries. You don’t need to worry about performing shallow charges.
    There’s only one problem that shallow discharges can cause. Laptops can get a bit confused by shallow discharges and may show you wrong estimates for how long your device’s battery will last. Laptop manufacturers recommend you perform a full discharge about once per month to help calibrate the device’s battery time estimate.

    Read More:
    canucklehead likes this.
  2. FlyingBear
    Original Member

    FlyingBear Silver Member

    Likes Received:
    Status Points:
    Hmmm.... true memory effect only happens with Nickel Cadmium cells.

Share This Page