?Is leaving the phone on the charger overnight a good idea
There are many different opinions and beliefs about the correct use of phone batteries, how often to charge them, and how to extend battery life as much as possible. Unfortunately, there are many inaccuracies and misinformation on this subject on the Internet.
Although there are a lot of inquiries about the optimal use of charging the phone battery, the most urgent and widespread question remains, is whether charging the phone overnight harms the battery?
Most modern devices now use lithium-ion batteries, with a chip that monitors and protects when the device's battery reaches full capacity. When the charge reaches 100%, charging stops immediately. So you can not overload the battery.
But the problem lies with the system and applications continuing to work in the background of the system, the phone will charge to 99% of its capacity, the charger will work again and recharge it to 100%. This is called trickle charging, and this process is never good for battery life.
There are a lot of opinions and tips that talk about the best percentage that the battery should be kept charged is the percentage that ranges between 20-80%, so we note that Apple devices warn of the need to charge when the battery percentage reaches 20%, and in contrast, modern Android devices alert when the percentage 15%. Accordingly, Apple and some companies that run their Android phones have provided additional features to keep the phone in this range as much as possible.
Starting with the release of iOS 13 for the year 2019, the improved battery charging feature has been added to iPhone devices. And when the feature is enabled, thanks to machine learning techniques to understand the way we charge - such as charging the phone every day at night before bed - the phone will register this habit, automatically prevent charging after 80% and then resume charging during the last hour that we usually wake up. The importance of this feature is to prevent battery overcharging, which reduces battery life over time and reduces its efficiency.
Some Android devices have basically the same feature. Called “optimized charging” on OnePlus devices, Google Pixel phones have “adaptive charging,” and this feature aims to slowly charge the phone overnight to maintain battery health over a period of time, rather than charging it faster.
Shipping risks
With the protections we mentioned, the percentage of damage to the phones battery is reduced, but the batteries will degrade over time, and no feature can currently do anything about it. It is only a matter of time. Charging cycles affect battery life. The more charge cycles you go through, the more deteriorating your battery will be. This is why it is best to keep the phone charged between 20 and 80% as much as possible. Because of this, charging at night and repeating charging cycles between 99-100% for several hours is one of the worst habits followed, which in turn damages the battery faster.
Night charging problems and some tips
There are a few things you can do to charge the phone overnight and mitigate some of the downsides. First of all, we have to make sure that the device has room to breathe. Overheating is a major concern, so we have to leave space around the phone, and don't cover it with anything. Also, we should not put the phone under the pillow, as it is expected that the phone will heat up, but this does not necessarily lead to burning, but this heat is sufficient to damage the battery.
When charging occurs, lithium ions swim across the negative electrode to the positive electrode, but during this some irreversible damage also occurs, as dielectric salts form and build up on top of the cathode. Over time, the buildup grows and the battery capacity shrinks.
Worst of all, buildup increases at higher battery levels and temperatures. Maintaining a high battery level for a longer period will definitely cause the battery to deteriorate faster.
Lithium-ion batteries do not do well in extreme heat or extreme cold, either of which could potentially damage them. Temperatures below 0°C or above 70°C damage lithium-ion batteries.
Choose the right charger
Many experts advise sticking to the official charger and charger cable from the phone manufacturer. They are designed specifically for the phone and are unlikely to have defects that could damage the battery or cause slow charging. And in the case of using a power bank (external battery), we must ensure that it is of high quality so that this does not lead to damage to the battery.
It's not just the battery that hates heat
All the internal parts of any smartphone don't like getting warm. Even the computer and hot air have been bitter enemies for decades, and we are seeing new approaches to cooling systems for devices being invented all the time. Apple has made it clear that charging iPhones that have a temperature of more than 35 degrees Celsius will lead to permanent damage to the battery. The same is expected with any modern smartphone.
Mind the battery memory
Battery memory is an old concept that applies more to older Ni-Cad batteries, which have been replaced by modern Li-Ion batteries. Previously, the advice was to completely discharge the battery before charging, but now we need to do the exact opposite. It is best to keep a lithium-ion battery charged between 20 percent and 80 percent to use charged ions and extend battery life. So charging in short bursts throughout the day is probably the best way to keep your phone going in the short and long term.
Leave the phone half charged when storing
Many companies, including Apple, advise that if we want to store our smart devices, we should keep them at around 50 percent charge rather than fully charged or fully discharged.
Apple explains why, it is possible for the battery to fall into a state of deep discharge, making it unable to hold a charge. Or vice versa, if we store it fully charged for a long period of time, the battery may lose some capacity, resulting in shorter battery life.
It is also advised to turn it off if we know we will not be using our device for a while rather than letting it slowly drain out while we are not using it.
Conclusion
In general, despite all these tips and measures, the life span for phone batteries to function normally is only two years anyway, and then the battery starts to deteriorate, even with the best practices. So, if we sometimes need to charge our phone at night, don't panic.
And you have to accept that batteries can't last indefinitely. Using the phone will lead to battery deterioration if we like it or not. There isn't any way to avoid that. The advice is only to slow down this deterioration.
So if you must charge at night, here are some basics to sum up:
It is recommended to use a slow charger.
Disconnect charging as soon as you wake up.
Use a high-quality charger and charging cable, preferably the one that came with the phone box.
It is preferable to place the device on a cool and flat surface
Remove the thick cover of the phone before connecting it (the cover).
Source : websites