China IT cabinet,Competitive Price IT cabinet

Lithium-ion battery terms explained

Aug , 18 2023

I. Battery voltage (V) 1. Open circuit voltage (OCV) The voltage of the lithium battery when it is not connected to an external circuit or load can generally be tested with a multimeter. 2. Operating voltage (WV) The potential difference between the positive and negative terminals of the battery under applied load, that is, when there is current flowing through the battery in the circuit. When the...

more

Important performance of the battery

Sep , 04 2023

1, electrical performance: (1) Rated capacity: 0.5C discharge, single battery discharge time is not less than 2h, battery pack discharge time is not less than 108min (95%); (2) 1C discharge capacity: 1C discharge, single battery discharge time is not less than 57min (95%), battery pack discharge time is not less than 54min (90%); (3) Low temperature discharge capacity: 0.5C discharge at -20℃, the ...

more

Interface level standards between digital systems

Sep , 09 2023

Preface When we constrain the FPGA project, we often see such level standards, such as LVCOM18, LVCOS25, LVDS, LVDS25, etc. In fact, these are a series of level standards, in order to have a deeper understanding of the level standards, the following excerpts from the book "The FPGA Way" for the explanation of the level standards to understand. Dual Threshold Standard The so-called dual-threshold s...

more

How do lithium batteries screen distribution groups?

Sep , 19 2023

The inconsistency between single batteries often causes problems such as too fast capacity decay and short life during the cycle of battery packs. Improving the consistency of batteries is of great significance to the popularization and application of lithium-ion batteries. 1 Inconsistency analysis Definition of inconsistency The inconsistency of the lithium-ion battery pack means that after the s...

more

Lithium battery performance key indicators - internal resistance knowledge

Oct , 13 2023

First, the definition and role of internal resistance (1) Definition of internal resistance Internal resistance refers to the resistance encountered by the current passing through the inside of the lithium battery during discharge or charging. It is determined by the conductivity of the material inside the battery, the ion transport rate of the electrolyte, the contact resistance between the elect...

more

How to calculate the required ups load capacity?

Oct , 19 2023

Measured in “watts”, UPS load capacity is an important factor to consider when choosing a UPS (uninterruptible power supply). It determines how many electronic devices the UPS system can support. This post will tell you how to choose the right UPS with required UPS load capacity in the following four steps. Clarify UPS Measurement Units UPS systems are rated either in kilowatts (kW) or in kilo-vol...

more

Lithium battery internal resistance - AC resistance and DC resistance

Oct , 27 2023

Resistance is a physical quantity that characterizes the degree of obstruction of circuit elements to current transmission. The internal resistance (internal resistance) of lithium batteries is one of the important indicators to evaluate the performance of batteries. In practical applications, the internal resistance of lithium batteries has three important roles: 1. It can be used to evaluate the...

more

Method for providing the service life of valve-controlled closed lead acid Battery (VRLA)?

Nov , 03 2023

1 Temperature affects battery life: thermal runaway causes temperature rise: Valve-controlled closed lead-acid battery (VRLA) charging when the internal gas recombination itself is an exothermal reaction, so that the battery temperature rises, floating charge flow increases, the gas evolution increases, and the battery temperature rises higher, the battery itself is a "poor liquid", tightly assemb...

more

Introduction to Data Center Cabinet Head Cabinet

Nov , 03 2023

The column head cabinet is a cabinet used to allocate and manage one or more columns of cabinets in the same computer room, and has protection functions. In power room, communication equipment room, and large network room, column head cabinet is necessary and also necessary. 1. Basic concept of column head cabinet A column head cabinet is a cabinet located at the top (first position, equivalent to...

more

Ground Design

Nov , 10 2023

1、Introduction In the process of circuit design, grounding is a commonplace issue. The grounding method needs to be based on specific usage scenarios, and there is no universal grounding method. In this article, we will explain the essence of grounding issues, which is worth savoring carefully. 2、Classification of grounding The same hardware circuit may also have differences in grounding methods i...

more

Comparison of advantages and disadvantages of various energy storage systems

Nov , 11 2023

1. Lithium-ion batteries "Lithium battery" is a class of lithium metal or lithium alloy as a negative electrode material, the use of non-aqueous electrolyte solution of the battery, due to the chemical characteristics of lithium metal is very active, so that the processing of lithium metal, preservation, use, the environmental requirements are very high. With the development of science and technol...

more

Comparison of advantages and disadvantages of various energy storage systems

Nov , 16 2023

Comparison of advantages and disadvantages of various energy storage systems 1, mechanical energy storage Mechanical energy storage mainly includes pumped storage, compressed air energy storage and flywheel energy storage. (1) Pumped storage: when the grid trough the use of excess electricity as liquid energy media water from the low-lying reservoir to the high-lying reservoir, the grid peak load ...

more

what are you looking for?

blog

blog