DIY 15,600mA power bank

So I saw this instructable Make your Bike ''Smart and Green'' for an Ultimate Ride - All
And I wanted to do it, my one problem is that he uses 3 2600mA batteries and I'm going to use 6 on those, my only problem is the charger that charge the battery, it's only 2A and charging it will take 8 hours, Is there any other board that can charge faster? (4A)
I'm only going to build the power bank, if you see any other problem that I didn't noticed please let me know

 

Welcome to the forums.

Maybe I'm missing the point. That article is all about using green energy recharging.
Your plan to use a charger isn't what that article even discusses.

 

Before you do anything else, you need to understand how to charge a Polymer Lithium Ion battery. Google Polymer Lithium Ion charge rate.

You don't want exploding batteries!

 

Well, I did write I'm only talking about the power bank..

 

Ok.... in that case you should look further for battery pack plans that fit more with want you want to do.

I don't offer advice here on building battery packs as the liability is to high. I've seen lithium batteries explode on overcharging. I do build my own packs but I'm very particular about charging and heat build up issues.

 

What are you calling the "power bank"? Is it the battery or the charger?

 

In the instructable he makes power bank (battery + charger ± solar panel)

 

You can make a larger, more powerful charging system to reduce the charging system. You would need a more powerful charger and a larger solar panel. Another option is to split your battery pack into smaller units. Then you can charge the multiple batteries at the same time with multiple smaller chargers. Whatever method you choose you need to be mindful of the batteries maximum charging rate but I don't go over 1c with 18650's, or 2c with LiFe and LiPo even if the battery specs say they can handle more. I feel it's easier on the batteries especially in summer when temperatures are higher.