Mega powerbank DIY with flashlight - Free 3D Print Model

Search models, users, collections, and posts

leospacelab

Tools>Gadgets

IP Report

Print Profile(3)

All

P2S

X2D

H2D

A2L

H2D Pro

H2S

P1P

X1E

X1 Carbon

P1S

H2C

A1 mini

Main Body PLA

Designer

12.7 h

8 plates

5.0(1)

Main body petg

Designer

13.3 h

8 plates

5.0(1)

petg flashlight lenses

Designer

31 min

1 plate

Open in Bambu Studio

Boost

948

2564

123

Released

Bill of Materials

Maker's Supply Kits and Parts

Select all

Round Threaded Brass Heat-Insert Nut

M3x12 FHCS Machine Screw (20PCS) - AA087

M3 Flat Head Cap Machine Screws (FHCS)

M3 Flat Head Cap Machine Screws (FHCS)

M3 Flat Head Cap Machine Screws (FHCS)

Bambu Filaments

Select all

Clear (32101) / Filament with spool / 1 kg

PETG Translucent

White (33100) / Filament with spool / 1 kg

PETG HF

Gray (33101) / Filament with spool / 1 kg

PETG HF

Description

🔋 The Ultimate 100W Modular 18650 Powerbank by LeoSpacelab

Welcome to the Mega Powerbank! This is a fully modular, 3D-printable, and expandable battery pack designed to fit your needs. The core idea is a modular system where you can add or remove series of 18650 batteries, allowing you to easily replace or customize every single cell.

In the standard configuration (4 series of 4 batteries), using 3500mAh cells, this power bank reaches a massive capacity of about 200Wh! Thanks to the 100W output, you can easily charge laptops, drones, smartphones, and camera gear.

Plus, it features an optional Flashlight Module that can stay on for weeks!

Boost Me (for free)

take a look at my minipowerbank collection https://makerworld.com/collections/21153900

⚠️ SAFETY DISCLAIMER
This project is not for beginners. You need basic soldering skills. Always triple-check your wiring and pay close attention to battery polarity. Handling lithium batteries and high-power electronics incorrectly can be extremely dangerous. Build at your own risk!

🛠️ BOM - MATERIALS AND ELECTRONIC COMPONENTS 🛠️
Here is everything you need to build the powerbank:

⚡ Basic Electronics:

High-power charging module (100W) Lithium version: https://it.aliexpress.com/item/1005010503311631.html
BMS 4S 40A Board (for 4 series of batteries): https://it.aliexpress.com/item/1005008057252957.html
Dual 18650 battery holders (8 needed for the 4-module config): https://it.aliexpress.com/item/1005008870018574.html
18650 Batteries (3500mAh recommended)

🔩 Hardware and Cables:

M3x5x4 Heat set inserts (Nut embedded) 52 pz: https://it.aliexpress.com/item/1005008318533389.html
Countersunk M3 Screws:
- M3x6 - 3 pcs
- M3x8 - 40 pcs
- M3x12 - 9 pcs
22 AWG Silicone cables: https://it.aliexpress.com/item/1005006350734418.html

🔦 For the Flashlight Module (Optional):

3V LED Panels (or max 14V):
1- https://it.aliexpress.com/item/1005011551277190.html
2- https://it.aliexpress.com/item/1005005920507948.html
12mm ON/OFF Switch: https://it.aliexpress.com/item/1005007172624075.html
Step-Down Module:
1- https://it.aliexpress.com/item/1005007508685885.html
2- https://it.aliexpress.com/item/1005011741522181.html

Comment & Rating (29)

@Zozo

Hello, Can you make a version with 21700 ? thx for this model !

@Mitch23

I was going to ask the same thing.

@user_2358939163

This

@projectorize

@Sascha.Scherpf

Boosted

I think the idea is great, but I'm trying to find products in the EU store, as I don't think much of Ali and Temu. It was worth two boosts for me. Thumbs up. My rating *****

The designer has replied

Show original

@LeoSpacelab

Hello thank you, yes you can also find the parts on amazon, but you pay double

Show original

@Sascha.Scherpf

Boosted

Replying to @LeoSpacelab :

That's true. However, from my perspective, the higher price is not just a "surcharge" but also buys some advantages: "That's true, the parts are often significantly more expensive on Amazon or from European retailers. However, you usually also get traceable CE conformity, a contact person within the EU, and warranty and guarantee claims under European law. Especially if something is defective or becomes safety-relevant later on, it makes a difference whether you can contact a dealer in the EU or have to discuss with a seller on the other side of the world. Of course, that has its price. That's why I personally prefer to buy something more expensive if I have better legal protection and a tangible contact person for it"

Show original

@Psychoknot

Replying to @Sascha.Scherpf :

the issue is, when you buy this stuff on amazon, 99.999% of the time its just somebody drop shipping off of ali express anyway.(for example you buy from me on amazon for 3x the price, then i order it on ali express and ship it to your name/address) then if the shipment fails i can just buy and reship again and still have profit. i would say drop shipping making up a very large part of amazons business. might as well just order on ali bro.

@IPrintForFun

is it possible to make it A1 mini compatible, like maybe a 1 light smaller version?

The designer has replied

@LeoSpacelab

in realtà se stampi un pezzo alla volta, riesci a stamparla con la A1, solo la maniglia non entra, se vuoi ho fatto una versione più piccola ma non ha la torcia https://makerworld.com/collections/21153900

@IPrintForFun

Thank you very much! I'll make sure to print them and use them for the boost as soon as I have a ticket

Show original

@weareborg89

as some laptops require more power would it be possible to make a 140w version or a way to interact with dc barrel plugs to make it universal? Amazing work. Super huge fan of it.

@LukeSkywalker

Boosted

In the project, you deserve a boost! If possible, can you provide some links for the batteries? I've searched but would like to avoid mistakes, thanks

The designer has replied

Show original

@LeoSpacelab

hello thank you, the batteries are universal just look for 18650 batteries, as long as you take the flat ones on both sides, because there are also those with a pin on the + and they are not good

Show original

@MattiaL22

I don't usually comment but this is really a nice project: simple but at the same time extremely useful and above all MODULAR, I also really like the design. I will build it calmly in the coming months and give you feedback, congratulations on everything

The designer has replied

Show original

@LeoSpacelab

thank you, I'm very pleased, don't forget to follow me on YouTube and on live for other projects

Show original

@sleepy3dprint

18650 batteries? I don’t think I can afford that many

@user_172286000

Boosted

Hello, I'm in the process of ordering the parts and then I need to have this part. A really good idea and super well implemented. I'll give you a boost for that. I'll report back when I've also printed and assembled it

Show original

@Holytriangle

Is the BMS used capable to be charged via solar?

@passedyouby

hot build!! more and more high performance laptops (the ones nerds like us use) use 180w chargers. since you are big into power banks, I would LOVE to see a high output build like that. even with only 100wh capacity that would DOUBLE the life of laptops like mine (even with charging losses).

License

This user content is licensed under a Standard Digital File License.

You shall not share, sub-license, sell, rent, host, transfer, or distribute in any way the digital or 3D printed versions of this object, nor any other derivative work of this object in its digital or physical format (including - but not limited to - remixes of this object, and hosting on other digital platforms). The objects may not be used without permission in any way whatsoever in which you charge money, or collect fees.

Related Models

GIF

Oreo clicker

RBNtool 3D

15.1 k

4.4 k

DRAGON BASIC

ONIE3D

23.1 k

3.8 k

GIF

Magic Trick - The Vanishing Box

Meezi

19.2 k

4.8 k

USB cable organizer Box tray IPhone Samsung

Gorilla Labs

21.4 k

10 k