Idea for smartphone
It's no secret that now almost all top smartphones are alike. And it is no secret that one of the bottlenecks is the rapid discharge of the battery. For example, my Samsung with active use is not enough even until the evening. There are smartphones that specialize in long lifetimes, but usually they are plump and heavy and take extremely long to charge. Repeatedly observed friends who sit with their phone with a wire at the outlet. So, a few points that I suggest. Doing just an addon to an existing smartphone does not work, it should be done exactly at the level of the entire smartphone. Additions and criticism in the comments are welcome.
1) We take a top-end smartphone (you can do it on the basis of an existing flagship), we make it an easily removable cover with a built-in battery. For example, my Galaxy S4 Mini has a cover that is easy to remove, but it still requires effort and a mechanism such that with constant removal it will shake sooner or later. It is necessary to make removing the cover even easier. Ideally, some kind of sliding mechanism, but which is difficult to open accidentally and which will slowly wear out over time.
2) When the cover is removed, the battery is also removed at the same time, but an important nuance, in the smartphone itself there is an additional “mini-battery” with an operation algorithm like this: the “mini-battery” is always charged up to 100%, it is used only when the cover is removed. Allows a smartphone to live for about a minute (more for replacement and not necessary). With such characteristics, it can be very small. This approach will allow to replace the battery "on-hot" without leading to a reset of the smartphone.
3) Included with the phone give 2-3 back covers. Sell ​​these removable "battery covers" separately with different patterns for fans.
4) Each "battery cover" has a separate microUSB input for charging through the cable, ideally from the inside invisible side.
5) The approach will be very convenient if, in addition, there will be a pad for wireless charging, on which it will be possible to store "battery covers", while simultaneously charging.
Total briefly the key to success :
1) Top modern smartphone
2) Availability of "battery cover"
3) Hot-swappable two-touch battery cover, while the impossibility of accidental removal
4) Several "battery caps" included
5) Ease of charging "battery covers"
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Advantage for the user: it is convenient to carry one spare cover with you, keep one at home so as not to sit with the charging cable when you need to use a smartphone. Even if none of this is currently required, then you have a top lightweight smartphone on your hands.
HighScreen Boost followed a similar path - with a very capacious battery. And, for example, it is theoretically possible to change the battery for a spare in Samsung and some other smartphones, but this is not always convenient and leads to an overload of the smartphone. In addition, this approach requires the purchase of a separate battery and will eventually lead to a broken cover.
1) We take a top-end smartphone (you can do it on the basis of an existing flagship), we make it an easily removable cover with a built-in battery. For example, my Galaxy S4 Mini has a cover that is easy to remove, but it still requires effort and a mechanism such that with constant removal it will shake sooner or later. It is necessary to make removing the cover even easier. Ideally, some kind of sliding mechanism, but which is difficult to open accidentally and which will slowly wear out over time.
2) When the cover is removed, the battery is also removed at the same time, but an important nuance, in the smartphone itself there is an additional “mini-battery” with an operation algorithm like this: the “mini-battery” is always charged up to 100%, it is used only when the cover is removed. Allows a smartphone to live for about a minute (more for replacement and not necessary). With such characteristics, it can be very small. This approach will allow to replace the battery "on-hot" without leading to a reset of the smartphone.
3) Included with the phone give 2-3 back covers. Sell ​​these removable "battery covers" separately with different patterns for fans.
4) Each "battery cover" has a separate microUSB input for charging through the cable, ideally from the inside invisible side.
5) The approach will be very convenient if, in addition, there will be a pad for wireless charging, on which it will be possible to store "battery covers", while simultaneously charging.
Total briefly the key to success :
1) Top modern smartphone
2) Availability of "battery cover"
3) Hot-swappable two-touch battery cover, while the impossibility of accidental removal
4) Several "battery caps" included
5) Ease of charging "battery covers"
')
Advantage for the user: it is convenient to carry one spare cover with you, keep one at home so as not to sit with the charging cable when you need to use a smartphone. Even if none of this is currently required, then you have a top lightweight smartphone on your hands.
HighScreen Boost followed a similar path - with a very capacious battery. And, for example, it is theoretically possible to change the battery for a spare in Samsung and some other smartphones, but this is not always convenient and leads to an overload of the smartphone. In addition, this approach requires the purchase of a separate battery and will eventually lead to a broken cover.
Source: https://habr.com/ru/post/364105/
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