How Often Should I Charge My Phone To Prolong The Battery Life?
The battery life of a phone is limited and it can be defined as
the duration a fully charged phone battery lasts before it is fully discharged
to 0%. Battery life is a measure of battery performance and longevity which can
be quantified in several ways such as; the runtime on a full charge or as; the
number of charge cycles until the end of useful life. Batteries are always
designed to meet up to the energy consumption of the phones.
How does Phone battery work?
A lithium-ion battery is the most common phone battery type and
they are a type of rechargeable battery in which the lithium ions in the
electrolyte undergo both forward and reserve reactions as they move from the
negative electrode to the positive electrode during discharge and back when
charging. The charging procedures for Li-ion phone batteries is always in three
stages;
- Constant Current Stage (~0%-80%): At this stage,
the charger applies a constant current to the battery at a steadily
increasing voltage until the voltage limit per cell is reached.
- Saturation Stage (~80%-100%): The charger
reduces the charging current while the phone battery cell’s State of
Charge (SoC) are brought to the same level. Here, the charger applies a
voltage equal to the maximum cell voltage times the number of cells in
series, as the current gradually declines towards 0.
- Ready Stage (100%): The battery terminates the
charging which means stop accepting current from the charger.
- Standby Stage (<100%): At this phase, the recharge
process is triggered to make sure the battery capacity is at 100%.
Now to the main question
Atwhat percentage should I always recharge my phone battery?
Phones nowadays have inbuilt power management application
systems and the most common ones always indicate when to recharge the phones.
Most phone OEM devices such as Samsung and Apple I-phones etc. always alerts
the phone user to charge the phone once the battery drops to 20%. Therefore
ensuring the phone battery does not drop below 20% or below the phone battery
management application’s alert level can improve the battery life before it
exceeds the manufacturer’s rated charge cycle. Generally, the charge cycle for
most phone batteries is between 500 – 1500 cycles.
Most battery nowadayshas smart control circuits. These circuits control the various charging
procedures of the phone battery. However, it will be better if you keep to the
common 20% – 80% rule. The rule states that to prolong the phone battery life,
keep the battery always charged between 20% -80%. However, as opposed to common
opinion and is known that, charging to 100% is more convenient and easier for
everyone. In fact, charging to 100% should not see degradation impact in a
short time. So it is still acceptable to charge to 100%. But please make sure
to turn off the charger if you want to charge to 100%. This is because it is
bad to leave your phone continues to charge when it is at 100% because the
recharge process will be triggered when little capacity drops. And this
recharging process causes stress to the battery and eventually speed up the
battery degradation time
Hence, to bring convenience to every user, Charby has invented a
cable named Charby Sense which will automatically cut off the charging when the
battery is 100% without recharge back as if you turn off the charger. It is
super useful especially if you would like to overnight charging your phone to
ensure fully charged for the next day use. For more information about Charby
Sense, please look it from here.
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