Do you want to use your old phone to charge your phone? We show you different options for this.
There are few things as annoying as going to use your cell phone and finding it’s out of battery. If you’re at home, you can go through a plug, but if not, it could be a problem. For this purpose, a few years ago powerbanks became widespread, external batteries that we can use to charge our smartphones anywhere. but, What if we turned that old cell phone at home into a power bank? This way you can always keep your phone charged without buying anything.
We have several options for this, though you’ll always need one Your mobile is compatible.
- If you have a mobile phone with a removable battery
- If you have a mobile phone compatible with reverse charging
Samsung mobile with removable battery
If you have a mobile phone with a removable battery
Most smartphones these days have a built-in battery. This means that we cannot remove the battery, since it is integrated into the body of the phone. If this is the case with your phone, which is very likely, you won’t be able to use this trick. But if you still have a mobile phone with a removable battery, charging with an old mobile phone can be very easy. And the thing is that a large part of cell phone batteries are the same or very similar. Therefore, you can use your old mobile battery as one Replaced battery Now what to put in your mobile.
So, you need to make sure that your old phone battery is charged. Then you can carry the whole phone or just the battery with you. And If your cell phone battery is dead, proceed with the change.
The problem with this strategy is that, on the one hand, there are few mobile phones with removable batteries in 2024 And on the other hand, it is necessary for you Two cell phones with the same battery model. But if this happens to you, you can easily use your old mobile phone battery as a powerbank.
Two mobile phones are connected to use reverse charging
If you have a mobile phone compatible with reverse charging
Another option you have is to be able to use your old mobile phone as a powerbank Reverse charging. This is a function that some devices need to be able to use their batteries to charge other devices. Thus, if your old mobile phone has this reverse charging option, you can carry it in your bag and use it as an external battery to easily connect your new mobile phone, the same way you would with a powerbank.
To use your old mobile phone as a powerbank, first you need to Enable reverse chargingFor which you need to follow these steps:
- Go to your phone’s settings.
- In the Settings menu, enter the Battery section.
- Enter performance.
- Click on Enable Reverse Charging.
If this option doesn’t appear on your phone, that’s probably the problem It is not consistent With this option.
And this is a big problem with this technique: it can only be used with mobile phones compatible with reverse charging. If your old smartphone is not one of them, You cannot use it to charge your new mobile.
The main smartphone models compatible with reverse charging are:
- Xiaomi Mi 9 Pro
- Xiaomi Mi 10
- Xiaomi Mi 10 Pro
- Xiaomi Mi 10 Ultra
- Xiaomi Mi 11
- Xiaomi Mi 11 Ultra
- Samsung Galaxy S10
- Samsung Galaxy S10 Plus
- Samsung Galaxy S10e
- Samsung Galaxy S20
- Samsung Galaxy S20 Plus
- Samsung Galaxy S20 Ultra
- Samsung Galaxy Note 10
- Samsung Galaxy Note 10 Plus
- Samsung Galaxy Note 20
- Samsung Galaxy Note 20 Ultra
- Samsung Galaxy Fold
- Samsung Galaxy Z Fold 2
- Huawei Mate 20 Pro
- Huawei Mate 30
- Huawei Mate 30 Pro
- Huawei P30 Pro
- Huawei P40
- Huawei P40 Pro
- Huawei P40 Pro Plus
- OnePlus 8 Pro
- OPPO Reno Ace 2
- Motorola Edge+
Mobile phone connected by cable to proceed with reverse charging
Reverse charging by cable
If your old mobile phone is compatible with reverse charging, you can connect any mobile phone via cable to use it as a power bank. The only thing you will need is one Cable or OTG converter. It is nothing but the cables that allow us to connect one mobile phone to another If you connect both phones with reverse charging enabled, your new phone will start charging.
OTG cables are very cheap, and you can find models at any store that specializes in technology They do not exceed 3 euros. Therefore, it is cheaper than buying an external battery and allows us to take advantage of the phone we have at home
With this OTG converter we will connect the normal charging cable that we use to charge our mobile phone to the normal charger. It will start charging in a few seconds. Our old mobile phone will have the same capacity as its battery when used as a powerbank. And it is always recommended It carries fully charged To be able to use it
Two mobile phones charged with wireless reverse charging
Wireless reverse charging
You have another option that is at your disposal Charge your mobile wirelessly. No need to carry any cables with you. But it is essential that both your old and new mobile phones are compatible with wireless charging, something that is not usually very common especially in slightly older models. If this is the case, the procedure is as simple as enabling reverse charging and placing your new mobile phone on top of the old one so that it uses its battery.
The only problem with this option is that it is a bit slower than regular wireless charging. Thus, while with a normal wireless charger we can charge at 10W, the maximum charging power we can get on this occasion is 4W.
Of course, we must understand that this function of using an old mobile phone as a powerbank is not designed to throw away our normal charger, but rather as a way pull through When we are away from home and don’t have a plug handy. And if we find ourselves in that situation, wireless reverse charging is probably the easiest option.
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