Battery cases are a pretty popular thing today. They allow you to extend the time of operation of the smartphone sometimes 2-3 times. There is only one nuance. Even two. Not all phones come with these wonderful gadgets, and they cost much more than a simple battery. For all those who are upset by this injustice, instructions on how to make a case with a battery for the phone with their own hands.
You can create a case with a battery yourself.
A bit of physics
As you know, today all devices use a lithium-ion battery. It has already shown its advantages over all the batteries used previously. Therefore, it seems to us, it will be easier to take a lithium battery for our case.
The scheme of the desired device is extremely simple. Who has not skipped physics, remember that batteries can be connected as? Correct, parallel or sequential. A parallel connection will increase the capacity, and a serial connection will increase the voltage. We are interested in increasing energy intensity, so we will connect in parallel.
It is important to indicate that there may be two or three battery terminals. Two is plus and minus, and the third is responsible for security. For an additional "safe" contact is not so necessary, since the native battery is connected to the smartphone itself. Therefore, if you find only two contacts - not scary.
We make our miracle
It should be understood that there is a lot of “not” in the whole process: from clumsy to insecurity. But who the hell cares about beauty! And whoever does not risk, he does not drink champagne. Therefore, we discard all doubts and move on to the store, garage or storage room for the necessary material and tools.
- Lithium-ion battery. The new one, of course, will do better.
- Tin. Any aluminum can will do.
- Scissors stronger.
- Single-core flexible wiring of small section.
- Insulating tape and glue.
- Multimeter
- Thin flat screwdriver, pliers.
When all this is collected on one table, you can proceed.
- Remove the cover of the smartphone and remove the battery.
- The contacts on it hide under the microcircuit, which is necessary to pry off and gently remove with a soft movement of a screwdriver or pliers.
- To the extreme conclusions fasten two strips, pre-cut from the banks.
- From above we fasten a microcircuit back. You must make sure that it is in contact with the findings, otherwise the phone just will not work.
- Use a multimeter to check the polarity of the contacts. To do this, we put the voltage on the device itself, then bring the red probe (-) to one contact, and black (+) to the other. If the numbers on the display are with a minus sign, then the polarity is exactly the opposite: where there was a plus, there is a minus, and where there is a minus, there is a plus. If the number on the screen is positive, then the polarity of the probes coincides with the polarity of the contacts.
- Do the same procedure with a non-native battery. Only the stripes here will be needed much shorter.
- Now, connect the wiring to an external battery. Ideally, it would be worth soldering them.
- The other ends of the wires are attached to small metal strips that are attached to the lid of the phone. So that plus was opposite to plus, and minus opposite to minus.
- As a result, it should turn out that the contacts under the phone cover are connected to the contacts on the battery. If it is, return the battery to its place and close the lid. You can also cut openings for wiring so that they are not pinched.
- Fasten the battery to the back of the phone with a tape.
That's all. Next, your inner designer will tell you how to make in the full sense of the case from this creation with your own hands. However, if everything is done with high quality and correctly, then the capacity of the phone should greatly increase. The first couple of charge cycles can be enough even for less time than before. But later this should be corrected.
Tips & Warnings
It is better to read this section if you have not yet had time to start modifying your device.
- It is best to buy a lithium-ion battery of the same volume. The volume is written on the battery itself or in the instructions for it.
- New battery can overheat, swell, leak. In general, to create anything. Therefore, all this is done at your own peril and risk.
- Choose the cheapest battery, because the risks in this case increase even more. Spend time, but find a good battery.
- Follow the work of the improved smartphone: is it warming up, is it not turning off just like that. In which case it is better to abandon the modification.
So, now you can brag to your friends with a personalized phone upgrade. The main thing is not to burn your hands with acid when you shake the device. In general, to do this really do it yourself. And there is a high probability that everything will work as it should and will provide the mobile with additional energy.