how to turn on phone without battery

POWER AN ANDROID PHONE WITHOUT BATTERY
or my needs, I had to have an Android alaways on but I didn't want to let it pluged on a wall with the battery cell inside. A battery that is 24/7 on charge can be damaged and start a fire ! So I wanted to bring power from a wall plug, directly in the phone.
Be careful ! Here we will play with electricity and battery cell. Those elements can be dangerous if you don't know what you're doing. I can't be responsible of any damage caused on your equipmentor on yourself. So please, read every documentation you can found BEFORE starting anything !
For this project, I use an ".Lava Iris Numbers I'll give will just be correct with this model. Please check on your device the values you are looking for.
When I removed the battery cell of my device, I found a little label that said the device should be powerd at 3.8V. I found the same number wrote on the battery cell. But when I looked on the 5.0V.plug, I saw it dispense We will need to reduce this voltage in order to not damage the device.
We can see on the device four little pins. Two of them are the + - poles to power the device. To know exacly which one does what, you can look on the battery cell. It should be + and - symbols in front of the right ones.
First of all, we will need cable between the power plug and the device. Took an old USB - micro-USB and remove the micro-USB head.
If you remove the plastic protection you will see multiple wire. We only need two of them : the red one and the black one.
Here comes the hardest part. In order to make a good contact between our wires and the pins on device we will use a part of the battery cell itself.
With thousand precautions, you can start to remove the plastic sheet protection around the battery cell. You will expose the part we need : the one with four contacts. On my model, this part was protected with a little piece of plastic that I removed with a small pliers. With a small blade, you can detach this little part. See pictures to spot it.
Using all those parts, if I measure output voltage I found 4.83V don't mind the Arduino, it's not even plugged. It's less than the 5.0 wrote on the battery cell but it is still a bit high and it can damaged the device.
You will have to weld the red and black wires on the little battery cell part. The cell itself can be use as reminder to know where plugged which wire.
After all of that, the output voltage is still a bit high but it will do the thing.
k, now you just have to put your assembly into your device. For my part, I used a small piece of cardboard to hold our it in front of the four pins.
Hold your breath and... Yay ! The device starts o!
Thanks to the Ampere app, you can control the device input voltage. On mine, it displays 4.2V. It's a bit high but I don't think it will damage my device.

[@KJ7JHN]

Nice job! An online resistor may be helpful. It'll reduce the voltage pressure to 3.7v. adding some flux to reliquify the solder is a must too, it'll turn the chalky/cold solder joint back to liquid. It helps with tiny solder jobs too.

[@fast_and_curious9144]

what Do you mean by Online Resistor!!?

[@KJ7JHN]

@@fast_and_curious9144 -inline, in series resistor.

[@KJ7JHN]

@@fast_and_curious9144 I ended up directly soldering the leads to the terminals too. I put a 5 amp voltage regulator on it. I'm running mine from the doorbell to a bridge rectifier and 1000uf cap to the regulator.

[@KJ7JHN]

On my LG, I need to tare apart my battery and connect the leads to the batteries BMS. I may just run that off usb.

[@minnalxplod7841]

Instead of these components use a old batteries board

[@user-oy5dv5ur1o]

Can u teach me.. Positive to positive Natural to ? Negative to ?

[@RRareGaming]

Hey i found my old s3 but the old battery is missing amd the second battery is bulged and bent but my phone has 4 pin, now what to do?

[@RobloxSpiders]

Search for its battery and check the negative and positive pin

[@Florisz11]

The video does not match the text above. No pictures of taking part out of the origianl battery. It looks like you are using a USB power bank. USB is always 5V DC. Using USB plug(s) without convertors behind it, looks dangerours to me. Also I don't see any Arduino in the video. So I really think the text above is of a different video.

[@shajipappan2151]

Is there anyway I can use battery less mobile just like a TV, I mean from direct supply?

[@techworld5639]

use charger

[@രുചികൾ]

A phone thanne battery ellathe varuvo?🤔🤔

[@rumaisafaiz7074]

asi video dekhau jis mai android phone slow charge hu raha hai aur vu bana hu gaya hai tu us ku kaisai open karai

[@mdnazamalam9257]

I already done five year ago but it directly effect on mobile

[@mymemories9719]

I tried and it worked..., But then within seconds it shows 0% battery..., Now What To Do...? How To Fix It...,?

[@RandomYtUserGuy]

Try to recharge ur powerbank

[@GuriSingh-rp1ik]

ਵੀਰੇ ਮੇਰਾ ਮੋਬਾਈਲ ਨਹੀਂ ਚਲਿਆ

[@sharmabibek7297]

I want to be a mobile mechanic help me

[@mondashreef1561]

Q mobile ko kasy kara

[@jadejashiddharthsinh6031]

Thank you

[@satamp343]

What a damn song you play. Noisy. I want to see. I don't want to listen.

[@soriaggeloykoytfortheblock4573]

me too

[@ajibaskoro38]

Mantab 👍 smartphone put on powerbank bateray

[@man7535]

Dont try chance to explosion 👾👾

[@User89018]

Will a 9v battery work?

[@yadneshmohite4727]

👌

[@ioshacksandidsell8812]

Bhai agar hum charger sa lagai to phone damage to nahi hoga please bataoo

[@habib4475]

Ni ho gaa khrab

[@rupendrasingh5941]

Bhai thank you

[@user-jk1qc8kq3w]

No need soldering just connect your charger

[@rimckd825]

Mr Mumbles... lol

[@mahendrakumarampalam3041]

Super👍

[@anilmaurywanshi3508]

Bahi 4pin wale phone per videos banao

[@jaganchinnu7005]

2.30

[@abhinavabhinav8403]

Malayalii hahaha

[@jpgor4245]

Agar aap me dam he to Vivo v3 mobile start karke do

[@subramaniamkabaleeswaran9026]

How to Run New Nokia 3310 directly from Mobile charger without Battery, please help.

[@luckyyadav9748]

It'll phone be Ho Kata ha kea

[@lavaughnlumley8306]

that canot pass where it is

[@zeeff7749]

Sir mobile pin was hit

[@japnitkaurbindra8763]

Kitne mm ki wire usehogi

[@japnitkaurbindra8763]

Apne koi reply nahi kiya

[@gangsterrr1426]

@@japnitkaurbindra8763 jitni vi mm ki laga sakte ho patli vi chalegi

[@yadneshmohite4727]

Hindi me hota to acha hota

[@sajith5017]

Its Malayalam channel bro

[@pushpendradhimole9202]

Medium comment good

[@mannchalaa]

Great

[@unknownhack1095]

Sorry I don't get your language at all bro 🥺🥺

[@AHMED-jh8je]

😮

[@TheBull06]

Why label your video in English and speak no English in the video?

[@junedshaikh189]

Hi

[@pardepkumar1810]

Hii

[@charlescalvin1664]

1:08 *VIRUS*

[@sciencewallah267]

Ye sub bekaar hai hai aisa kabhi nahi hota hai in sub me na paro sub logo ko meri yahi salah hai

[@mr.status1113]

KITNE MM KA WIRE HAI YE?

[@suhailansari9475]

8lii