Mobile phone chargers can be roughly divided into travel chargers, cradle chargers and maintenance chargers. Generally, users mainly contact the first two. And the most sold on the market is the travel charger.
There are also various forms of travel chargers. The common ones are the cheap duck egg-shaped miniature travel charger, the ordinary desktop card board charger, and the high-end desktop charger with crystal display. Mobile phone charger, also known as: mobile phone adapter, is actually composed of a stable power supply (mainly regulated power supply, providing stable working voltage and sufficient current) plus necessary control circuits such as constant current, voltage limiting, and time limiting. The output parameters marked on the charger (referring to the line charger): such as output 5.0V/1A, output 5.0V/1500mA-11200... refers to the relevant parameters of the internal regulated power supply. Understand this truth, you will know that a (good quality) mobile phone charger is easy to change into a good quality regulated power supply.
The chargers of lithium-ion (li-ion) batteries commonly used in mobile phones use a constant-current and voltage-limited charging system, and the charging current is generally around C2—that is, the charging rate is two hours. For example, a 500mAh is charged at 250mA in about two hours 4. Constant voltage charging after 2V.
The lion is not suitable for the -DV/DT detection fast charging method used by the NIMH advanced fast charger, because the lion has a strict limit on the charging current. Lithium ion (Li+) is very active, and high current charging is prone to danger. The general user contacts are mainly the first two. The most popular travel chargers on the market are travel chargers. There are also various forms of travel chargers. The common ones include cheap duck-egg miniature travel chargers, ordinary desktop card board chargers, and high-end desktop chargers with LCD display. device. In view of the fact that most mobile phone users are non-professional users, the chargers basically have the function of full self-stop, and most of the travel chargers are fast chargers, and the charging time is about 1-3 hours. Many chargers on the market advertise that they are controlled by microcomputers, including some very cheap duck-egg-type miniature travel chargers. In fact, strictly analyzed from the charging circuit, only a small number of chargers can be truly controlled by microcomputers (MCU control). .
Some manufacturers claim to be "microcomputer control" when they use integrated blocks on the charging circuit. In fact, many low-cost design integrated blocks are cheap op amp integrated blocks, while some dedicated charging control integrated blocks have higher unit prices. , generally used in relatively high-end or brand-name chargers. So we can't trust the so-called microcomputer control, especially the cheap products. Many products are similar in appearance but have very different internal circuits, and their performance is also very different.
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Red BUDI Multi-function Smart Adapter Card Storage Data Case Box Storage Cable For Xiaomi Reader TF USB Protable Multi-Cable
Model No.:M8J516
Products Color:Black and Red
Products Size:29*16*132mm,NW:70g
Cable length:17cm
Multi-Cable(6 types cable)
1 PCS USB to USB cable.support PD chargeing and fast charge cable.
3 types of adapters,USB A to USB B Adapter,USB B to Micro USB Adapter,USB B to iPhone Adapter.
budi Multi-functional Cable Stick is a revolutionary design that integrates all the essential and most frequently used cables connectors; a near 29cm Type to Type cable with 3 types of adapters which makes up to 6 different types of cables.
SIM Kit
When youre traveling overseas, if you have a local SIM card and no have storage place to place.the budi Multi-functional box can help you and that includes a SIM ejector pin and 2 nano SIM card storage. It might look simple, but is a important assistant to you.
TF Card Memory Reader
When there is no internet, no email access, how do you transfer a file to someone? budi Multi-functional Cable Stick can read TF memory cards and support both USB or Type port.and at same time support 7 PCS TF card storage
Phone Cradle
Long flight? Movie?hands-free? One second to set up budi Cable Stick as a phone cradle. that you can watch movie on your phone hands-free
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