At some point, you will find out that you will need an extra battery to charge your phone or have some led light and you are in a remote situation and there is no electricity.In that case, you will need a power bank witch is basically one battery or multiple batteries wired in series or parallel to give you the voltage needed for your applications.
Think it these ways the car 12v battery has inside 6 batteries wired in series so wi will replicate that.
Step 1: Homemade Power Bank
In order to make your homemade power bank you will need the following:
18650 battery holder
Li-ion charge controller
Some wires and you are ready to start making your power bank for charging your phone .
How to make your own homemade rechargeable power bank at home with a capacity of 10000mah or more you can build it homemade power bank .
. What is Power bank? Power bank also called “mobile battery”, “external battery”, “spare battery”, “digital charging companion”, and “charging stick”. It also has a very personal name: “mobile phone lover”. “rechargeable DIY Power bank” "rechargeable power bank" concept has been developed along with the rapid growth and popularization of digital products, and its definition is: portable
Step 3: Charge It Before You Make It
There are some easy process in how to charge your diy power bank with the Li-ion battery that you have to know about you have to charge them max 4.2v and discharging them at minim 3.6v and when you arrange your homemade battery pack you have to choose just the lithium cells that have same or nearly the same capacity 1200ma+1100ma or 1250ma.How to use power bank in different situations camping, power outage, emergency charger or in the off-grid community and charge this diy power bank by solar power or other alternative power energy sources.
Step 4: How to Make Rechargeable Power Bank
If you want to see the video representation just fallow the links and you will have the video on how to make your own power bank its so easy if you have the right parts just assemble it and enjoy you have to keep in mind these steps:
-Charge the cells separate
-Match them accourding to simillar capacity
-Connect them in parallel and take the positive and negative from oposites corners
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