DIY

How to make a fast charging powerbank

Hello, dear readers and homemade products!
The times when cell phones were just phones, and could safely hold a charge for a week, are long gone. Modern smartphones can do a lot, and with such opportunities, they eat very well. Having completely clogged the stomach at night, the supply of these animals is rarely enough for a full working day. As a result, you either have to carry a charger with you and look for an outlet, or take a power bank.
Almost all new models of smartphones and other digital devices have fast charging technology. Since higher voltages and currents are used, increased protection requirements are needed.
In this article, the author of the YouTube channel “Sorin – DIY Electrical Nerd” will show you how to make a portable battery (powerbank) with fast charging support (AFC, QC2.0, QC3.0, FCP/SCP).
How to make a powerbank with fast charging support (fast charging powerbank ) How to make a fast charging powerbank This project is very versatile, and is built on the basis of several modules. It can be easily repeated at home, with a little experience in soldering.
Materials needed for homemade.
– BMS 6S 24V 40A Battery Protection Board
– NCR18650B 3.7v 3400mAh Batteries
– Three-stage charger for Li-ion batteries
– Adjustable buck module LM2596
– USB buck converter for fast charging QC3.0 QC2.0
– LED battery indicator 7S 6S 3S 2S 1S
– USB tester (voltmeter + ammeter)
– Plastic sealed box with transparent cover
– Battery holder for 18650 batteries
– Heat sinks with heat conductive adhesive tape
– USB socket, power connector, switch
– Wires, solder, 3M insulating tape, heat shrink tubing. < br> How to make a powerbank with fast charging support (fast charging powerbank) Tools used by the author.
– Laboratory power supply < br> – Universal charger OPUS BT-C3100
– Electric soldering iron with temperature control
– Digital multimeter
– Screwdriver with bit set
– Dremel, hot glue gun
– USB charging cable.
Manufacturing process.
So, the master will use this set of modules.
 How to make a fast charging powerbank You can also use a module with two or four USB fast charging ports.
How to make a powerbank with fast charging support (fast charging powerbank) First of all, the wizard will demonstrate the operation of the fast charging module by submitting to its input 21.4V from a laboratory power supply.
A USB tester is connected to the module output. As you can see, the module reduces and limits the output voltage to 5V.
How to make a powerbank with fast charging support (fast charging powerbank) When a smartphone that supports the fast charging function is connected, the module will recognize it, and raises the output voltage to 9V. The current in this case is 1.41A.
How to make a powerbank with fast charging support (fast charging powerbank) An adjustable step-down module on the LM2596 will reduce the battery voltage to 5V, so that you can charge regular gadgets.
How to make a fast charging powerbank Another converter is used to connect devices with fast charging function. The voltage at the input of such a module can be from 6 to 32V.
How to make a fast charging powerbank How to make a powerbank with support for fast charging (fast charging powerbank) Energy will be stored by an assembly of six series-connected (6S) NCR18650B batteries. These batteries are convenient because they already have welded conductors in the form of metal strips.
How to make a powerbank with fast charging support First, the author installs new 18650 batteries in the charger, and performs three automatic discharge-charge cycles.
How to make a powerbank with fast charging support (fast charging powerbank) How to make a fast charging powerbank How to make a powerbank with fast charging powerbank support How to make a fast charging powerbank Two L-shaped sections are assembled from the battery holders.
How to make a fast charging powerbank Batteries are inserted into them, and the polarity must be alternated so that it is convenient to connect them in series. Be careful, the tapes are very sharp and you can easily injure yourself.
Next, you need to solder the tapes from negative to positive. This should be done quickly to prevent overheating and damage to batteries.
How to make a fast charging powerbank Now you need to check the voltage produced by the charged assembly using a multimeter. It is 25V. The assembly capacity is the same as that of a separate cell – 3200 mAh, and the total energy is as much as 70 W.
How to make a fast charging powerbank How to make a powerbank with support for fast charging powerbank Extra connectors can be cut to fit in building.
How to make a powerbank with fast charging support (fast charging powerbank) Alternatively, you can wind up the batteries with electrical tape, but ventilation will deteriorate and cooling.
How to make a fast charging powerbank How to make a powerbank with support for fast charging powerbank There will be a charge to manage the charge and protect against abnormal situations BMS 6S.
How to make a powerbank with fast charging support (fast charging powerbank) How to make a fast charging powerbank A diagram of the connection of all elements is shown in the following picture.
< img class = "aligncenter" alt = "How to make a fast charging powerbank" src = "https://usamodelkina.ru/uploads/posts/2021-02/1614450287_pwb-129.jpg"/> By soldering the wires to the assembly, the master insulates the open contacts without closing the gaps between the batteries.
How to make a powerbank with fast charging support (fast charging powerbank) How to make a fast charging powerbank How to make a powerbank with support for fast charging (fast charging powerbank) Then the wires are soldered to the terminals on the protection board and charge management BMS 6S.
How to make a powerbank with fast charging support (fast charging powerbank) Strips are glued to the bottom of the board and the edges of the holders before installation in the case made of foamed double-sided tape.
How to make a fast charging powerbank The following charger will be used to charge the power bank.
When connecting a load of resistors, and currents of 1 – 1.5 A, no voltage drop is observed. It drops quite a bit (to 24.7V) at two amperes.
How to make a fast charging powerbank How to make a powerbank with support for fast charging (fast charging powerbank) How to make a fast charging powerbank How to make a powerbank with support for fast charging (fast charging powerbank) All components will be assembled in a sealed plastic box with a transparent lid. Perhaps it is a little too big, and you can find a more compact version.
< img class = "aligncenter" alt = "How to make a fast charging powerbank" src = "https://usamodelkina.ru/uploads/posts/2021-02/1614450241_pwb-163.jpg"/> Further, with the help of a knife and a dremel, excess plastic elements are removed, and the surfaces are leveled.
 How to make a fast charging powerbank Windows are also drilled and cut through to install the power button, connectors.
How to make a fast charging powerbank How to make a powerbank with support for fast charging (fast charging powerbank) The master uses a simple USB socket for the port dedicated to normal charging. Data transfer contacts Data + and Data- are closed with each other, and power wires are soldered to Vcc and GND.
How to make a fast charging powerbank How to make a powerbank with fast charging support (fast charging powerbank) How to make a fast charging powerbank The board with the slot is fixed in place with a glue gun.
How to make a fast charging powerbank The battery assembly locks into the housing.
How to make a powerbank with fast charging support (fast charging powerbank)  How to make a fast charging powerbank How to make a powerbank with fast charging support (fast charging powerbank) Two wires are soldered to the positive contact of the power connector at once, for easy connection .
How to make a fast charging powerbank How to make a powerbank with support for fast charging (fast charging powerbank) How to make a powerbank with fast charging support (fast charging powerbank) How to make a fast charging powerbank How to make a powerbank with fast charging powerbank support To measure voltage and current at the fast charge output , the master uses the module from the USB tester (voltmeter + ammeter).
He cuts out a part of the transparent lid and fixes it on the LED indicators. This will make the readings easier to see in bright daylight.
How to make a fast charging powerbank How to make a fast charging powerbank How to make a powerbank with support for fast charging (fast charging powerbank) How to make a powerbank with fast charging support (fast charging powerbank)  How to make a fast charging powerbank The tester is connected directly to the output of the fast charging module.
The standard connector of the tester will have to be removed and the modules connected with wires, since there are quite large losses at the transitions in the connectors. This can be clearly seen if you enable several testers sequentially, and at the end add a load.
How to make a fast charging powerbank How to make a powerbank with fast charging powerbank support How to make a fast charging powerbank How to make a powerbank with fast charging powerbank It is also advisable to glue heatsinks to the microcircuits with hot melt glue, or take a heatsink with heat-conducting adhesive tape. It is important that the metal surfaces of the radiator do not touch other electronic components or close them.
 How to make a fast charging powerbank How to make a powerbank with fast charging support (fast charging powerbank) How to make a fast charging powerbank How to make a powerbank with support for fast charging (fast charging powerbank) How to make a fast charging powerbank How to make a powerbank with support for fast charging (fast charging powerbank) You need to solder the power and data wires to the contacts on the fast charge board. This is necessary for communication between the board and the charged device.
 How to make a fast charging powerbank Remains connect all modules according to the diagram, and fix them on double-sided tape.
How to make a fast charging powerbank How to make a powerbank with fast charging powerbank support How to make a powerbank with fast charging support (fast charging powerbank) How to make a fast charging powerbank How to make a powerbank with support for fast charging powerbank How to make a fast charging powerbank Terminals on the breaker are heat shrinkable.
How to make a fast charging powerbank How to make a powerbank with fast charging support (fast charging powerbank) How to make a fast charging powerbank Having connected a load to the normal output, the author sets the voltage to 5.05V by rotating the trimmer resistor on the LM2596 step-down module.
 How to make a fast charging powerbank How to make a powerbank with fast charging support (fast charging powerbank) How to make a fast charging powerbank The wires from the fast charging module are soldered to the tester input.
How to make a fast charging powerbank How to make a fast charging powerbank How to make a powerbank with fast charging powerbank support How to make a powerbank with fast charging support (fast charging powerbank) Another radiator can be installed on the inductor, it also heats up.
How to make a fast charging powerbank How to make a powerbank with support for fast charging powerbank To control the battery charge level, the master connects such an LED indicator. Its wires are connected to the battery outlet after the switch.
 How to make a fast charging powerbank < a href = "https://usamodelkina.ru/uploads/posts/2021-02/1614450303_pwb-388.jpg" rel = "prettyPhoto">How to make a fast charging powerbank How to make a powerbank with support for fast charging (fast charging powerbank) A 3A fuse is installed in the break of the positive wire from the battery. The fuse body is protected by a heat shrink tube. The end of the wire is soldered to the B + terminal of the BMS board.
 How to make a fast charging powerbank < a href = "https://usamodelkina.ru/uploads/posts/2021-02/1614450314_pwb-403.jpg" rel = "prettyPhoto">How to make a fast charging powerbank How to make a powerbank with support for fast charging (fast charging powerbank) It remains to fasten the cover with regular screws, and the original portable charger is ready.
< img class = "aligncenter" alt = "How to make a fast charging powerbank" src = "https://usamodelkina.ru/uploads/posts/2021-02/1614450331_pwb-411.jpg"/> How to make a fast charging powerbank The gadget is connected to the device via a charging cable .
Different models of smartphones use different fast charging modes. This can be clearly seen from the readings of the voltmeter and ammeter.
How to make a fast charging powerbank How to make a powerbank with support for fast charging (fast charging powerbank) The author decided to discharge the power bank by connecting a light bulb as a load. The BMS board disconnected the battery when the voltage dropped to 16.5V.
How to make a fast charging powerbank A full charge with an initial current of 2A takes about three hours.
How to make a fast charging powerbank How to make a powerbank with support for fast charging (fast charging powerbank) How to make a powerbank with fast charging support (fast charging powerbank) All modules together with indicators consume about 20mA.
< a href = "https://usamodelkina.ru/uploads/posts/2021-02/1614450358_pwb-466.jpg" rel = "prettyPhoto">How to make a fast charging powerbank For those who prefer a ready-made product: PowerBank from Baseus with fair capacity.
I recommend the large GreatWall store of electronic modules and devices at great prices.
Thanks to the author for the master class on making a power bank with a fast charging function.
 How to make a fast charging powerbank Good mood, good health, and interesting ideas to everyone!
Subscribe to the telegram channel of the site not to miss new articles.
The author's video can be found here. < br>

Source:

usamodelkina.ru

Show More

Related Articles

Leave a Reply

Your email address will not be published. Required fields are marked *

Back to top button