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Effect of ambient temperature on battery life

Mar , 01 2023

1）Temperature will affect battery capacity At different temperatures, the viscosity of the sulfuric acid solution in the battery will be inconsistent. For example, when the battery is at a temperature below 0°C, as the temperature decreases, the resistance of the sulfuric acid solution will continue to increase, which will directly increase the weight of the electrode. The effect of polarization, ...

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Three-stage charging of lead-acid battery

Apr , 15 2023

1. What is the three-stage charging of lead-acid batteries? The charging method of lead-acid batteries should be divided into three stages, namely: constant current charging - constant voltage charging - trickle charging. Constant current charging stage: charge to 13.4V with 0.2C10 A current. Constant voltage charging stage: 2.4V/cell, charging time 3h, cut-off current 0.02C10A Trickle charge phas...

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Negative electrode formula for high temperature performance of lead-acid battery

Jun , 07 2023

Negative electrode formulation for high-temperature performance of lead-acid batteries (containing the first hydrogen evolution inhibitor Bi2O2CO3 and the second hydrogen evolution inhibitor ZnO). The basic formula of the negative electrode (number of weight) is: 100 parts lead powder, 8 ~ 11 parts dilute sulfuric acid, 9 ~ 13 parts deionized water, 0.06 ~ 0.14 parts short fiber, 0.10 ~ 0.20 parts...

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Basic knowledge of filters

Jun , 21 2023

The Line filter is a filter circuit composed of capacitance, inductance and resistance. A filter can effectively filter out a specific frequency point in the power line or frequencies outside of that frequency point, obtaining a specific frequency power signal or eliminating a specific frequency power signal. A filter, as the name suggests, is a device that filters waves. Wave "is a very broad phy...

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7 Factors to Examine While Choosing a Lithium-Ion Battery Charger

Jul , 20 2023

From confirming an acceptable input voltage to features like protection design and safe charging mode, these factors can help you select the right lithium-ion battery charger 1. Acceptable Input Voltage An input higher than the voltage sustenance capacity of the charger may cause damage to its internal components. Most countries use a battery charger design of the universal global voltage 110-230V...

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Fault Analysis and Handling Methods of DC Screen High Frequency Switching Power Supply Module

Jul , 20 2023

Ⅰ、Protection of high-frequency power module 1）. High frequency power module AC input overvoltage, undervoltage, and overheating will cause charging module protection. Please confirm according to the fault code; 2）. The cabinet is equipped with glass doors or is airtight, which may cause overheating protection of high-frequency modules; 3）. If the ambient temperature in the computer room is too hig...

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Explanation of power terms related to UPS power supply

Jul , 28 2023

Transient recovery time: The time required for the output voltage to recover to the specified range when the load suddenly changes (0-100%, 100% -0%), usually in milliseconds (ms). Filter: A device used to eliminate noise, filtering the input or output to obtain pure alternating current. Shielding: A means of isolating and blocking electromagnetic radiation using physical principles...

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The Role of AC Capacitors in High Speed Circuits

Aug , 18 2023

1、Introduction For low-frequency circuits, resistors and capacitors can be analyzed as ideal devices. However, in high-frequency circuits, these two devices will not be "ideal". Today, our main discussion is about the issue of AC capacitors, which are commonly known as AC coupling capacitors. Their main function is to filter out the DC component of the signal, which is symmetrical about the X-axis...

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Explanation of the control method of high-frequency switching power supply, with good dynamic performance

Dec , 23 2023

High frequency switching power supply is a widely used power supply device in various electronic devices, and its high efficiency and stability make it an indispensable part in many fields. Its core feature is the use of switching devices to convert the input DC voltage or current into high-frequency AC power, and then obtain stable DC output through rectification and filtering. Due to its high ef...

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Adaptability of different types of UPS power supplies to data center requirements

Feb , 23 2024

From the perspective of data center requirements, the best UPS should have the characteristics of elastic expansion, high availability, efficiency, high density, and intelligence. According to this standard, a comparison is made between the power frequency UPS, high frequency UPS and modular UPS commonly used in data centers. Adaptability table of different types of UPS to data center requirements...

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Can online high-frequency UPS work without batteries, as backup batteries during power outages

Mar , 21 2024

UPS can maintain the time to connect devices without mains power, providing additional time for data storage and orderly shutdown of programs. Can online UPS work without batteries No, online UPS (uninterruptible power supply) cannot function without a battery. The battery is a key component of an online UPS system, and its main function is to provide continuous and stable power supply to connecte...

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Impact of high temperature on battery safety performance

Mar , 30 2024

Lithium battery temperature is too high, more than 45℃ Lithium-ion batteries are more and more widely used in people's production and life, which makes its temperature environment become the main point of concern, relatively speaking, lithium batteries are easier to produce safety problems in high temperature environment, therefore, it is necessary to test the high temperature performance of lithi...

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