I got one cell power bank and I can use it to charge my phone one time only. So, I got an idea to add extra battery on it which I took from disposable laptop battery. Here are steps I would share for you
Step 1: Things You'll Need
1. Of course Power Bank
2. Disposable laptop battery
Step 2: Tools You'll Need
4. Double tape
5. PVC Glue
6. Iron solder
Step 3: Step 1
Disassemble your power bank, do it carefully and do not broke the case then create a small hole on one side of your power bank case which we will use it for cable from extra battery, see picture
Step 4: Step 2
Get the power bank board and locate the positive (+) and negative (-) pin from battery then add cable for extra battery. See picture
Step 5: Step 3
Put the power bank board and battery back into the case and assemble it again, but remember to get the positive and negative cable you’ve soldered before throughout a hole you made in the case
Step 6: Step 4
Apply double tape in one of power bank case surface, and stik some popsicle covering all the surface. See picture to do it properly.
Step 7: Step 5
Stick your extra battery to the inner side of Popsicle and solder the cable to extra battery, do it carefully (see picture)
Step 8: Step 6
Do step 4 on the other surface of power bank case and Get the length of gap between Popsicle case you made, and cut a small stick according to the length. (see picture)
Step 9: Step 7
Get two popsicle and cut it as a length of power bank case, see picture
Step 10: Step 8
Combine small stick of Popsicle and stick it by using white adhesive glue on the gap between popsicle case you made as shown in the picture below.
Step 11: Step 9
To get maximum result, press it by using heavy thing for about 3 or 4 hour (an encyclopedia book will do it better for you), then cut unnecessary popsicle after its already stick strongly see below picture
Step 12: Step 10
Do step 8 and 9 for the rest of power bank side which has not been covered yet using popsicle and of course you should measured the length and customize the popsicle as you need.
Step 13: Final Result!!!
Here is the final result and running test... it works 100%
Step 14: More Ideas!!
I also create 8 cell power bank and external hard drive case from popsicle
Thanks for viewing my work