Is it bad if I charge my phone when it is
around 40%? Should I wait until the battery is completely empty? Many People
ask themselves about this Question. Have you been able to figure out what is
the correct answer to this question..?
Here are some research That Might help you to understand this disturbing
questions…
Modern Lithium-Ion batteries used in cell phones
contain a chip that is used to control charging of the battery. It also
monitors the temperature of the battery to prevent overheating under normal
conditions. Leaving it plugged in continuously does not harm the battery
because of the intelligence inside the battery casing. Discharging any battery
too deeply does degrade the battery because of the chemical process that
happens when a battery is deeply discharged. For that reason the chip inside the
battery also protect the battery from fully discharging before disabling the
battery.
Recharging at 40% is a great threshold for
Lithium-Ion batteries. Other battery chemistry’s vary in how far they should be
discharged for optimal performance but fully discharging is not good for any
battery. Cheaply designed battery chargers used with Ni-Cad and Lead Acid
batteries are usually the bigger reason for short battery life than the battery
itself. These cheap chargers continuously charge the as fast as possible for as
long as they are connected.
Sadly enough even some laptops have poorly
designed chargers in an application where the norm is for the device to be
plugged in a high percentage of the time. Modern cell phones are small, need a
high energy-density power source, and the cost of the electronics in the device
is a small portion of the manufacturing cost. The greatest cost is for
licensing of the technology used in the phone. This means that not spending 50
cents to implement an intelligent battery charger is not an option.
Charging to full is not a good idea unless you
plan to be in temperature controlled environment. Most cellphone batteries
degrade quickly because they are charged to 100% then leaves its 65º bedroom
nightstand and enters the outside World at 85º still fully charged. Battery
capacities change with temperature and this is not healthy for the cells.
Like any Li-ion cell (this goes for Electric Car
drivers) your best bet for longevity is “living in the middle”
Waiting until dead or near dead is not wise simply
because it now becomes a very narrow commitment on your time to plug in. Why
create this unnecessary hassle?
But there is always a caveat, a small though I think. The primary reason you
have a cellphone is to use it; something that is difficult with a dead battery.
But options abound. It’s generally over $100 to replace a battery on a phone
where battery is “not removable.” But charging cords are $10 and power packs
are $25.
Use the cord in the car, use the power pack on a
hike. You are pretty much covered
All I know is that leaving your phone always plugged on will definitely damage your battery. Talking from experience.
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