What is Overcharge Battery Protection?

Overcharge battery protection is an electronic circuit inside cell phones and other devices to prevent damage from heat and excess electricity. It cuts off the power once fully charged.

Lithium-ion batteries tend to overheat and may also explode due to extreme overcharge.

It reduces the battery’s discharging capacities which, in turn, leads to over-discharging. It shoots up the impedance and causes the cell to overheat.


How does it work

Both Android and iOS users receive confusing advice about overcharging their devices. It is important to remember that all smartphones are different.

You should refer to the user’s manual to know the best practices for charging your battery. Most modern devices are equipped with overcharge battery protection.

Devices have in-built software for pausing the charge flow as the battery reaches its highest power. This implies you don’t have to worry about unplugging your charger even when the charge is full.


A new smartphone cell may have up to 500 charging cycles present in it before its performance starts to deteriorate. The lifespan of the battery is not measured in years but charge cycles. Smartphones have come a long way and today, you may also use your device while it is charging.

Moreover, modern Android phones feature a wireless charging system that allows a battery boost without having to connect it to a wired charger. All you have to do is to place your smartphone on a Qi-compatible charger for refilling it up.


Even the iPhones have additional protective chips to ensure there is no overcharge as soon as the battery capacity reaches up to 100 percent.

Apple specifies charging their devices at temperatures above 35 degrees centigrade or 95 degrees Fahrenheit will bring about permanent damage to your device. But you can expect the same consequence with any smartphone you are using.


The internals of your phone is constantly degrading; it is something that we can’t help. Over time, the interior working would hold less power. If you are using an iPhone for over two years, you must have noticed that earlier a single charging would last a day. But now, you may have to charge it more frequently.


Is it good to leave charging overnight?

If you have been wondering about the right means of charging your smartphone- how long you must charge it up or how often? Some people tend to charge their phones whenever they find a power source while others try to keep their battery percentage between 60 and 80 percent at all times. There are some others who not only charge their device in the daytime but also allows the battery to juice up all through the night.


First things first. Charging up the cell will degrade its performance with time no matter how you go about it. Smartphones, including Android and iOS devices, function by moving the charge carriers from an electrode to other.

Generally, it follows a specific direction while charging and the opposite direction while using up the charge. As the ions move, it stresses on the electrodes which in turn, compromises the battery life.

The greatest benefit of Lithium-ion batteries is that they are armed with high energy density. A battery protection circuit can go a long way to shield your iPhones and Android devices from safety hazards.


For years, there has been a myth that charging your phone overnight can harm the phone’s battery and overall performance.

Though it made sense in the last decade, technical innovations now allow the phone to overcharge even when it is fully charged. On the flip side, charging your phone overnight will not bring about any positive impact on how well the cell runs through its life cycle.


How does it affect the battery life?

The real problems occur when the phone battery overeats. Thus, it is best to remove the phone case if you want to charge it overnight. It is also advised to leave your device on a flattened and hard surface for easy heat dissipation.

There is no problem if you overcharge your battery by plugging in the device overnight. Most smartphones are crafted to function in a broad range of temperatures, but exposing them to more than 35 degrees can damage your phone.


A lithium-ion battery works best when the battery percentage is between 50 and 80 percent. Thus, charging for short bursts from time to time can keep the battery working for the long term. This becomes an easy function with wireless charging. Both Android and iPhone users can opt for Low Power Modes for extending the battery life so that you can preserve the battery.

The continuous emphasis on battery power and durability has made it imperative to launch fast-charging features on high-end smartphones. Even if you are mostly dependent on your gadget which drains up the battery before the day’s end, you can quickly recharge it with the lightning-fast charger that comes with most smartphones.

As the name suggests, smartphones are actually quite smart. Every unit in the cell is equipped with a built-in chip for preventing overcharge.

The concept that overnight charging may be harmful to your device or that it may end in constantly draining the battery comes from technology of the olden days. Generally, modern phone batteries won’t have a problem if you charge them overnight.

123, 123a
26650 Battery Vs 18650
14500 Battery Vs 18650
14500 vs AA
Overcharge Protection