This article will help you to design a portable cost effective power bank with variable dc output hence you can change the output voltage range depends on your phone battery specification.
Mobile battery power bank circuit diagram.
And if thety often use mobile phones.
This is power bank mobile charger circuit project.
Turn the slide switch on.
Power bank modules connection diagram it contains three stages first one is tp4056 li.
The first module is a lithium ion battery charger and the second is a dc dc boost converter module.
To backup energy when need a portable mobile phone.
When electricity outlet to plug in to recharge a battery.
This power bank can be used for charging smartphones.
The power is stored in power ban by charging and it can be used when you need in any power bank a battery or combination of some small special batteries cells used to produce the power source to provide for mobile or other electronic gadgets battery charging.
Circuit diagram of the power bank is shown in fig.
The mobile phones battery starts to get charge from the power bank.
Connect the usb to micro b cable to the output of boost converter.
Circuit and working for power bank.
The power banks are additional power source and it ensures the power backups when we travel or in emergency situations.
Oct 31 2017 this power bank circuit pcb board has two main parts one is power bank battery charging circuit which is made by using tp4056 and second is dc to dc boost converter part which is made by using xl6009.
It uses a low dropout voltage high efficiency lm1086.