What is the power of UPS? How to choose UPS power? The sum of the squares of UPS active power and reactive power is equal to the square of apparent power. The general active power is around 60% -70% of the apparent power. Confirm the power of the devices we want the UPS to carry, and then we can con...

18650 batteries, as commonly used batteries in industry or daily life, are well-known to many users. Due to the many manufacturers of 18650 batteries, there are many 18650 battery brands on the market? So what brand is good for 18650 batteries? It has become a concern for many consumers. Now let'...

There may be two reasons for battery bulges. Firstly, there are issues with the manufacturing level of the battery, such as uneven electrode coatings and rough production processes; The second issue is overcharging and over discharging during use. These two factors can cause a violent reaction simil...

1. The origin of 12-14 hours: The first generation nickel cadmium batteries require low rate charging, and it is generally recommended to charge at 1/10C. For example, if your battery capacity is 600mAh, then 1C is 600mA, and 1/10C is 60mA. Therefore, it takes more than 10 hours to fully charge, and...

Charging a car's starting battery usually takes 20 hours.When the car is running, it will use a generator to replenish the battery, but when the battery is severely depleted, it needs to be replenished in a timely manner. The charging capacity of the car alone is not enough, so a portable charge...

Nowadays, electronic digital products are increasingly becoming an indispensable assistant for people's lives, work, and entertainment. However, consumers do not have much understanding of how to choose electronic and digital power lithium batteries. For this reason, experts from Procter&Gam...

Perhaps many people will find a situation where the battery casing of an electric vehicle is very hot when charging. However, many people believe that this is a very normal thing. The battery is allowed to generate slight heat during use or charging, but abnormal heat is not allowed. When you touch...

1、 The reason for phone battery bulge1. Most mobile phone batteries use high-energy lithium batteries. Usually, this type of battery will experience bulging and expansion when used. It is very dangerous to continue using this phenomenon, so if this happens, the battery should be replaced in a timel...

At present, there are two mainstream battery technology routes in new energy vehicles, lithium iron phosphate battery and ternary lithium battery. Although these two types of batteries compete in many application fields, the main focus is on the competition in the field of new energy vehicles, becau...

1. Test using a multimeter with a DC range greater than the rated voltage of the battery. For example, testing dry batteries at 9V and 1.5V using DC10V and DC2V levels.2. After selecting the gear according to the rated voltage of the battery, connect the probes to the positive and negative terminals...