How To Build a 20000 vs 40000mAh Power Bank With 26650 Battery.

[dropcap]A[/dropcap] 20000 mAh vs 40000 mAh power bank. Yes, it’s really huge capacity power bank!!! Do you know how to build it? The guy from Creative Channel which he builds a 20000 mAh vs 40000 mAh power bank with 26650 battery at home. So AMAZING!!!!

Check out the video here:

How To Make Mini Spot Welder Using Old Microwave Transformer:

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Source: Creative Channel

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