Introduction: Power Bank From Laptop Battery
Hello everyone
i was walking around while i saw the guy in computer repair shop throwing away laptop batteries in his trash
i asked him
he said he don't need them anymore so i took them home with me and started to think
How to make something useful out of this batteries
actually each battery have about 3 ~ 6 cells 3.7v Li-ion
this is real treasure but no one knows
so in this instructable we should know how to recycle old damaged laptop batteries.
Step 1: The Laptop Battery
Be careful !! li-ion is dangrous don't short cells ot throw them into fire.
when i say damaged laptop battery i don't mean it's exploded or burned
damaged laptop battery is a battery that unable to recharge or laptop can't feel it anymore or even laptop said replace battery
when we see dead laptop battery there's 3 cases
case 1
the battery board is damaged and can't provide power for turn on the laptop
case 2
there is 1 or more cells not working properly so the whole battery is damaged and can't be use to power any laptop
case 3
the connection between cells maybe cut and circuit is not closed any more
So ...
the first thing is tearing down that battery to salvage cells from inside
then measure each cell it should be higher than 3v
try to charge each cell and monitor it until it reach 4.2v with special li-ion charger
then try discharge and see if it can last long time.
in next step we are ready with some cells
if you can't find laptop battery you can always find cells in electronics stores or online
Parts:
AliExpress https://goo.gl/8XK8ay 5V Lithium Battery Charge Discharge Protection Integration Board Boost Step Power Module Micro USB Port https://goo.gl/vi3Ltw 5V 2.1A 1A Mobile Power Bank Charger Module Double USB Output 3V to 5V Step Up Boost Lithium Battery Charging Board LCD Display https://goo.gl/IuXVuA 5V 1000mA/1200mA Power Bank Battery Boost Charger Board Plate Lithium Battery Charging Step UP Mobile Phone Power Kit
DIY Full Kit Without batteries https://goo.gl/uWyQtD no battery 7x 18650 LED USB Portable Charger Power Bank External Box Kit DIY Battery Charger Box With Dual USB For Mobile Phone https://goo.gl/4rmKbP Universal Safety Portable USB 4 X 18650 Battery Quick Charger DIY Power Bank Box Case Kit For Smart Cellphone all Decive https://goo.gl/vx8NNc Universal DIY Dual USB 5 x 18650 LCD Display Mobile Phone Power Bank Battery Charger Box Case For iPhone For Xiaomi Powerbank
Batteries : https://goo.gl/OuIaF2 6pcs 18650 Battery 3.7V 2200mAh Rechargeable li-ion battery Flat Head for Power Bank Led flashlight Battery 18650 https://goo.gl/nQ7Rkd 4pcs/lot 2016 newest 100% Original 18650 ICR18650-26Fm 2600mAh Li-ion 3.7v Battery 18650 rechargeable Battery.
EBAY: https://goo.gl/wvkHIg 5V Step-Up Module Boost Converter Lithium Battery Charging Protection Charger https://goo.gl/Smms49 5V 2.1A 1A 2A Mobile Power Bank Charger Module LCD Display Charging Board USB https://goo.gl/VZi3dK 5V 1A 1.2A Power Bank Lithium Battery Charger Board Plate Boost Charging Module
DIY Full Kit Without batteries https://goo.gl/PauyI1 Dual USB LED Power Bank 5x18650 Battery Charger DIY Holder Box Case Kit Backup https://goo.gl/E6Sf26 For Cell Phone Dual 2 USB 2A Power Bank Case Kit 5x18650 Battery Charger DIY Box https://goo.gl/8zQrn8 For Cell Phone 4 USB 2A Power Bank Case Kit 6x18650 Battery Charger DIY Box Case
Batteries https://goo.gl/FNcVpi Samsung ICR18650-26F 2600mAh Original Lithium-ion Rechargeable Battery 2Pcs https://goo.gl/ZnYxlB Samsung 2600mah 18650 Li-ion Lithium battery power tool power bank electric bike
Step 2: Making the Power Bank
Follow the instructions in this video to know how to make your own power bank
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