Just found an old tiny Android smartphone lying useless in drawer without battery
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Micromax a58 Tiny Android smartphone very light weight fits in fist only detachable battery kharab ho gayi hai
Is there any way to resurrect this phone why it's very hard to find phone batteries 😭
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https://www.desidime.com/discussions/just-found-an-old-tiny-android-smartphone-lying-useless-in-drawer-without-battery?page=1#post_10060083
Those cylindrical pencil cells would require a non standard mechanism to connect, right?
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https://www.desidime.com/discussions/just-found-an-old-tiny-android-smartphone-lying-useless-in-drawer-without-battery?page=1#post_10060094
It is not THAT old for such spares to not at all be available.
Even for XT1021/XT1023 (Moto E from 2014), someone found an OEM battery just last year (2022-2023) in a town with 40-45 lakh population. But yes, only the biggest shops for spares would even bother to arrange it, sometimes only after multiple requests. And still charge almost 30%-35% of the restless value of the device for the battery and fascia!
Even for XT1021/XT1023 (Moto E from 2014), someone found an OEM battery just last year (2022-2023) in a town with 40-45 lakh population. But yes, only the biggest shops for spares would even bother to arrange it, sometimes only after multiple requests. And still charge almost 30%-35% of the restless value of the device for the battery and fascia!
https://www.desidime.com/discussions/just-found-an-old-tiny-android-smartphone-lying-useless-in-drawer-without-battery?page=1#post_10060954
This 18650 battery holder will help replacement of battery easy, and wires will be soldered permanently
https://www.desidime.com/discussions/just-found-an-old-tiny-android-smartphone-lying-useless-in-drawer-without-battery?page=1#post_10061247
@drupal another thing you can try. Get a phone battery with similar voltage output, and same number of terminal. If it has two terminals, + and - then you might retrofit circular 18650 or any other lithium ion batteries.
But if it has three terminal + positive, negative, and another one (that acts like groud point, but actual connects to the thermistor in the battery which tells the phone the battery temperature,) then find a smaller capacity, smaller size battery that fits inside the battery compartment of the phone, then solder the wires to the terminal and cover with kapton tape. Secure the battery to the phone chasis with double sided tape.
But if it has three terminal + positive, negative, and another one (that acts like groud point, but actual connects to the thermistor in the battery which tells the phone the battery temperature,) then find a smaller capacity, smaller size battery that fits inside the battery compartment of the phone, then solder the wires to the terminal and cover with kapton tape. Secure the battery to the phone chasis with double sided tape.
https://www.desidime.com/discussions/just-found-an-old-tiny-android-smartphone-lying-useless-in-drawer-without-battery?page=1#post_10061625
Yes it has 3 terminals which means I cannot use 18650 battery??
https://www.desidime.com/discussions/just-found-an-old-tiny-android-smartphone-lying-useless-in-drawer-without-battery?page=1#post_10062274
Is middle connection is necessary? @Total_Fun what if connect only + and -
https://www.desidime.com/discussions/just-found-an-old-tiny-android-smartphone-lying-useless-in-drawer-without-battery?page=1#post_10062715
Unfortunately, it is Not going to work. Phone needs the resistance value in that 3rd ( middle) terminal. So soldering a right value of resistor should solve that problem.
There's more things you should know.
> You cannot directly connect the 18650 battery to phone, you need BMS ( battery Management System) circuit board in between them. Otherwise it damage the battery ( due to improper voltage amperage, certain types of li-ion batteries follow a certain type of Charging graph. So there are dedicated BMS boards for 18650 cells.
Best solution is powering the phone directly from charger ( or external power bank). Not with 18650 cells.
No battery mod by GreatScott:
incase you're still interested in using 18650 cells check these YouTube videos
××××××
• Install external ( 18650) batteries to phone.
18650 Cell :
Why you should always use a BMS for Li-ion batteries:
There's more things you should know.
> You cannot directly connect the 18650 battery to phone, you need BMS ( battery Management System) circuit board in between them. Otherwise it damage the battery ( due to improper voltage amperage, certain types of li-ion batteries follow a certain type of Charging graph. So there are dedicated BMS boards for 18650 cells.
Best solution is powering the phone directly from charger ( or external power bank). Not with 18650 cells.
No battery mod by GreatScott:
incase you're still interested in using 18650 cells check these YouTube videos
××××××
• Install external ( 18650) batteries to phone.
18650 Cell :
Why you should always use a BMS for Li-ion batteries:
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Not a viable option but 18650 batteries can be used...