Lithium Battery 3.7V Lithium Polymer Battery 3.2V LifePo4 Battery 1.2V Ni-MH Battery Button Coin Battery
3.7V Battery Pack 7.4V Battery Pack 11.1V Battery Pack 14.8V Battery Pack Other Battery Pack
Sino Science&Technology Battery Co.,ltd is a high-tech production enterprise which specialize in the R&D and production of Lifepo4 batteries,energy storage battery,portable UPS power supply,personalized customization lithium battery pack etc .
Environmental cylindrical 18650 21700 32700 26650 14500 18500 lithium ion rechargeable battery, LifePO4 battery,3.7V lithium polymer battery, NiMH battery , NiCD battery ,Lead acid battery,dry cell battery ,alkaline battery ,heavy duty battery, button cell battery etc. we devote to R&D,innovation ,production & sales
Shenzhen Green Power Energy Battery Co.,ltd specializes in a wide range of digital battery such as environmental cylindrical 18650 21700 32700 26650 14500 18500 lithium ion rechargeable battery, LifePO4 battery, 3.7V lithium polymer battery, NiMH battery, NiCD battery, dry cell battery, alkaline battery, heavy duty battery, button cell battery etc. we devote to R&D, innovation, production & sales. With automatic production machines we have been exported goods to all over the world over 15years. We have complete exported certificate such as KC, CE, UL, BSCI, ROHS, BIS, SGS, PSE etc
Dongguan Datapower New Energy Co.,ltd is a high-tech production enterprise which specialize in the R&D and production&sale of lithium polymer batteries,drone battery,airplane batteries &battery pack etc.
Anhui Seong-hee New Energy Technology Co.,ltd is a high-tech production enterprise which specialize in the R&D and production of primary batteries. And mainly produces and sells alkaline batteries & carbon zinc batteries. there are size AA, AAA, C, D, 9V etc
Guizhou STD Battery Co.,ltd is a high-tech production enterprise which specialize in the R&D and production & sale of lithium polymer batteries, drone battery, airplane batteries & battery pack etc.
release time:2024-04-10 Hits: Popular:AG11 battery
Working principle, circuit diagram and PCB schematic of mobile power supply
Fed up with the short standby time of smartphones, power banks are hugely popular. In addition to the casing of mobile power supplies, how much do you know about mobile power supplies? If you are an engineer, you must not miss the sharing of the working principle of mobile power, components of mobile power, circuit diagram of mobile power and PCB schematic diagram of mobile power. Maybe you can get inspiration from it and make a finished mobile power supply yourself!
How mobile power works
The power bank is not a disposable device, it can be used repeatedly hundreds of times. So when the power of the mobile power supply is used up, we must charge the mobile power supply. The principle is the same as charging a mobile phone. Connect to a 5V USB computer interface or USB charger to charge the mobile power supply. Therefore, there must be a charging management system inside the mobile power supply. The charging management system can automatically adjust the charging current according to the voltage of the lithium battery. The processes include: precharging, constant voltage charging, and float charging, etc.
Various components of mobile power supply
A mobile power supply is a portable device that integrates power storage, voltage boosting and charging management. The storage medium generally uses lithium battery cells, because lithium battery cells are relatively small in size, have large capacity, have wide market circulation, and are moderately priced, so they are widely used in digital products. The voltage of lithium battery is between 2.7-4.2V, and the voltage decreases as the battery capacity decreases. The voltage of 2.7-4.2V cannot directly charge other digital products, because the lithium battery voltage of digital products is also 2.7-4.2V, and voltages of the same potential cannot be charged. Therefore, when a mobile power supply outputs electric energy, it must have a voltage boosting system to boost the 2.7-4.2V lithium battery voltage to 5V, so that it can charge other digital products, such as mobile phones, MP4s, tablets, PSPs, etc.
Power battery:
Commonly used ones include polymer lithium batteries, 18650 lithium batteries, and AAA nickel-metal hydride batteries.
Polymer battery: standard voltage 3.7V, many shapes, customizable, large capacity, high quality and low price, widely used, such as: mobile phones, MP4, portable speakers.
18650 lithium battery: standard voltage 3.7V, small size, large capacity, standard voltage 3.7V, mainly used in high-end products such as notebook computers.
AAA NiMH battery: standard voltage 1.2V. Capacity is relatively small. It should be widely used, household appliances, gamers, etc.
Read recommendations:
Cabinet type energy storage battery 15KWH
How to choose high-quality lithium-ion batteries?
Last article:Polymer lithium battery.LR03 alkaline battery
Popular recommendation
battery for solar energy storage Manufacturing
2023-05-10home solar energy storage lithium battery company
2023-05-1018650 battery pack wholesale
2023-05-0921700 battery wholesale
2023-03-22401030 lipo battery company
2023-03-22Ni-MH AA600mAh 1.2V
2022-07-01551235 180mAh 3.7V
2022-07-01Carpet game signs
2022-09-22602030 300mAh 3.7V
2022-07-01Lithium-ion battery GN500
2022-07-2912V 27A
2022-10-09LR6
2022-11-16801752 720MAH 3.7V
2023-06-10Li-ion 18650 3500mAh 3.7V
2022-06-20Snow board shoulder strap set
2022-09-2218650 li ion battery
2023-06-2518650 3500mah battery
2023-06-253.7v 18650 lithium battery
2023-06-2518650 battery pack 12v
2023-06-25CR2320 battery
2023-06-25Specific requirements for lithium-ion batteries for equipment
2024-06-25Methods to extend the service life of lithium batteries
2024-03-21Selection of Polymer Battery Separators
2025-07-16Is lithium battery better or lead-acid battery better
2024-09-1932700 battery
2025-02-21Portable car startup power ODM.lithium ion battery energy storage Vendor
2023-05-133.7V 18650 lifepo4 battery.What is the process of 18650 lithium battery cells?
2023-10-13Disadvantages of zinc air battery
2022-11-19What are the differences between energy storage lithium batteries and power lithium batteries.househ
2023-05-06Current status of lithium iron batteries.LR621 battery
2023-05-25