With the promotion and application of new energy vehicles and the development of battery technology, power lithium batteries have become the ideal power source for the new generation of electric vehicles due to their high energy density, good power characteristics, and long life.

However, after long use or other reasons, the cells in the battery pack are prone to inconsistencies, which can lead toNew energy vehicles have reduced battery life, empty battery, and insufficient charging.At this time, you can go to the car through4S stores and repair shops ask them to perform battery maintenance and repairs.One of the solutions for repair shops is to balance the batteries to reduce the differences between cells, thereby increasing battery life and battery life.The battery factory can also balance the batteries before leaving the factory to better maintain the consistency of the battery pack.

This article aims to introduce Hai Ruisi based onDeveloped by integrating SOC's battery balancing control and charge and discharge balancingPower battery balancer.It can effectively provide battery pack consistency, improve battery pack capacity utilization, and improve the overall performance of the battery pack.

Battery Pack Consistency

First let’s understandWhat causes the inconsistency of battery cells?？

It mainly includes four points: the remaining capacity of the battery, internal resistance, and self-discharge current.Two aspects: one is the inconsistency caused by the battery production and processing, and the other is the inconsistency caused by the environment in which the battery is used.The reason for the inconsistency in production comes from factors such as processing technology and materials; the reason for the inconsistency in the environment is due to the different conditions of each battery cell.The positions in the PACK are different, so the environment will be different. For example, the temperature will be slightly different, and long-term accumulation will cause inconsistency in the battery cells.

To sum up, the equalizer is used to eliminate the difference in remaining capacity of the battery cells. Under ideal conditions, it always keeps the remaining capacity of each battery cell the same, so that all cells reach the upper and lower voltage limits of charge and discharge simultaneously, thereby increasing the available capacity of the battery pack.

It can be seen that the equalizer is an important tool to ensure high battery capacity.There are two solutions to achieve the balancing function, active balancing and passive balancing.Passive equalization uses a resistor to discharge, while active equalization allows charge to flow between cells.

Introduction to Hirays equalizer

Charge and discharge balance

Independent channel design detects and evenly charges or discharges the module's individual cells.Make sure that each battery cell in the module is not overcharged or overdischarged.

Balanced maintenance presets

You can customize the balancing maintenance parameters and quickly perform balancing maintenance based on the preset parameters.

clamping voltage

It has a mechanism to judge when the target is reached and reduce the operating current; during the test process, the equalizer keeps the voltage of the cells in the battery pack infinitely close to the target threshold.

Multiple protection

Monitor the voltage and temperature information of the equalizer, and provide a variety of test shutdown limits to avoid overcharging and over-discharging of batteries.

7-inch display

The large LCD screen displays quickly,180° angle adjustment, more suitable for human visual experience;

The touch screen responds at the first touch, improving operator comfort.Using charts and data, the real-time detection process and results are clear.

Portable design

It is portable, small and exquisite, making detection more convenient and faster.

Multifunctional

One machine has multiple uses. It can charge, discharge, and balance cells to solve various problems in lithium battery maintenance and after-sales service.

Worry-free after-sale service

Scan the QR code and the online customer service will answer your questions immediately.

Hirays power battery balancing maintenance instrument, used for after-sales maintenance and testing of lithium batteries, it can create any battery pressure difference, quickly solve the inconsistent voltage of each battery cell group, and solve the pressure difference problems that occur in various complex working environments; it can be used in research and development experiments to simulate the problems that may occur with various voltage differences in batteries under harsh working conditions.The instrument is small and compact, easy for workers to carry, and is suitable for various types of lithium battery packs. It is an ideal tool for battery manufacturers,Ideal for battery maintenance in 4S stores and car repair shops.