SmartSafe EB480 EV Battery Cell Equalizer User Manual

: August 7, 2024
: SmartSafe

SmartSafe EB480 EV Battery Cell Equalizer

Specifications

Model: EB480
Power input: AC 90~265V
Charging & discharging voltage range: 1.8~4.5V
Voltage measurement accuracy: Function Parameter
Charging & discharging current range: 0.1~ 5A
Current measurement accuracy: Function Parameter
Battery Temperature Detection accuracy: Function Parameter
Max channel quantity in single unit: 4 string x Max 12 cells
Charging & discharging power: 1200W Max
Equalization Test Port: 26Pin*2
Temp Test Port: 24Pin
Display: 7-inch TFT LCD screen, resolution 800*480
PC Data communication: TCP/IP, USB-Device, Wi-Fi (Wi-Fi antenna external)
Data transfer: U Disk (USB-Host)
Charging mode: Constant current charging + constant voltage charging
Discharge mode: Constant current (constant power, constant resistance discharge selectable)
Protections: Overcurrent and overvoltage protection for input and output

Product Usage Instructions

Product Overview

Product Features
The product is designed to protect the battery and the balancer.

Main Function and Test Range
Mainly used for lithium battery pack charge & discharge test and equalizing maintenance, suitable for various voltage levels.

System Components
The device consists of main unit and equalizing cables. The main unit includes color display screen, data processing unit, data monitoring unit, auxiliary power unit, power consuming unit, and panel operation unit.

Working Conditions
Avoid corrosive, explosive, electrical breakdown air or conductive dust environments.

Environment & Energy Impact
The balancer can convert the tested battery energy into heat and use a cooling system for heat dissipation and ventilation during discharge tests.

Protection & Alarm
The balancer has hardware and software protection functions such as reverse connection, overvoltage, overcurrent, overtemperature, communication error, etc.

Precautions for Safe Use

Safe Working Period & Production Date
The designed safe working period for this balancer is 5 years. Check the production date on the factory inspection list.

General Rule
Always follow the user manual when using this balancer.

Common Incorrect Operation
Avoid using tools that are not well insulated and always follow the user manual.

Damage Probably Caused By Incorrect Operation
Avoid short circuit accidents by ensuring tools are well insulated and following the correct operation method.

Emergency Treatment In Exceptional Cases
In exceptional cases, disconnect the device power supply and test cables immediately.

Precautions In Exceptional Circumstances
If a short circuit occurs due to improper tool usage, separate the cables immediately.

Other Safety Alerts
Strictly comply with safety operating norms and correct operating procedures.

FAQ

What is the recommended charging voltage range for the EB480?
The recommended charging voltage range is 1.8V to 4.5V.
How many cells can the EB480 handle in a single unit?
The EB480 can handle up to 12 cells in a single unit.

Copyright Information

Copyright © 2021 by SHENZHEN SMARTSAFE TECH CO.,LTD. All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording or otherwise, without the prior written permission of SMARTSAFE.
Neither SMARTSAFE nor its affiliates shall be liable to the purchaser of this unit or third parties for damages, losses, costs, or expenses incurred by purchaser or third parties as a result of: Accident, misuse, or abuse of this unit, or unauthorized modifications, repairs, or alterations to this unit, or failure to strictly comply with SMARTSAFE operating and maintenance instructions. SMARTSAFE shall not be liable for any damages or problems arising from the use of any options or any consumable products other than those designated as Original SMARTSAFE Products or SMARTSAFE Approved Products by SMARTSAFE.
All information, specifications and illustrations in this manual are based on the latest information available at the time of printing. SMARTSAFE reserves the right to make changes at any time without prior written or oral notice.

Trademark Information

is a registered trademark of SHENZHEN SMARTSAFE TECH CO.,LTD. in China and other countries. All other SMARTSAFE trademarks, service marks, domain names, logos, and company names referred to in this manual are either trademarks, registered trademarks, service marks, domain names, logos, company names of SMARTSAFE or are otherwise the property of SMARTSAFE or its affiliates. In countries where any of the SMARTSAFE trademarks, service marks, domain names, logos and company names are not registered, SMARTSAFE claims other rights associated with unregistered trademarks, service marks, domain names, logos, and company names. Other products or company names referred to in this manual may be trademarks of their respective owners. You may not use any trademark, service mark, domain name, logo, or company name of SMARTSAFE or any third party without permission from the owner of the applicable trademark, service mark, domain name, logo, or company name. You may contact SMARTSAFE by visiting the website at www.newsmartsafe.com, or writing to SHENZHEN SMARTSAFE TECH CO.,LTD., 3310, Building 11, Tianan Cloud Park, Bantian Street, Longgang District, Shenzhen, Guangdong, China, to request written permission to use Materials on this manual for purposes or for all other questions relating to this manual.

Product Overview

EB480 battery cell balancer is a battery maintenance equipment specially designed for new energy batteries developed by Smartsafe. It is used to quickly solve the cruising range degradation caused by the difference in cell capacity due to inconsistent cell voltages. It has the characteristics of simple operation, stable performance, strong anti harmonic ability and convenient carrying. It can be applied to power battery production, new energy vehicle enterprise R & D, new energy battery pack maintenance and other scenarios.

Product Features

Adopt the latest equalizing maintenance technology and avoid the interference to BMS (Battery Management System), EB480 is designed for lithium battery pack daily discharge, charge, and equalizing maintenance.
Based on wide voltage range design, EB480 can be applied to lithium battery packs testing with various voltage levels.
Equalizing maintenance test mode can activate the lithium battery performance completely.
Voltage and temperature monitoring and protection during test can prevent over-charge and over-discharge.
Multiple discharge auto-stop conditions make testing mode more intelligent and flexible, and avoid over-charge and over-discharge.
Intelligent equalizing function based on each cell voltage monitoring and equalizing charge.
Support equalizing maintenance parameter customization.
Support multiple protection design and alarm settings of voltage, current, temperature abnormal to protect the battery and the balancer.
Support functions such as overvoltage, undervoltage, overcurrent, output short circuit, anti-reverse protection and overheating protection.
Adopt wave width modulation technology, high efficiency, high power factor, low noise, low electromagnetic interference.
7-inch touch screen, easy to operate.
Built in memory, supporting automatic storage of operation records.
Portable design, easy to carry and transport.

Main Function and Test Range
Mainly used for lithium battery pack charge & discharge test and equalizing maintenance, suitable for various voltage levels.

System Components
The device consists of main unit and equalizing cables. The main unit includes color display screen, data processing unit, data monitoring unit, auxiliary power unit, power consuming unit, and panel operation unit.

Working Conditions
NO CORROSIVE, NO EXPLOSIVE, NO ELECTRICAL BREAKDOWN AIR OR CONDUCTIVE DUST.

Environment & Energy Impact
The balancer can convert the tested battery energy into heat and use cooling system to blow the heat out of the unit, so during the discharge test, please pay more attention to heat dissipation and ventilation.

Protection & Alarm
This balancer has hardware and software protection functions such as reverse connection, overvoltage, overcurrent, overtemperature, communication error, etc.

Precautions for Safe Use

Safe Working Period & Production Date
The designed safe working period for this balancer is 5 years, please refer to the factory inspection list for the production date.

General Rule
Please follow the user manual to use this balancer.

Common Incorrect Operation

Tools for connecting is not well insulated.
Operating without following the user manual.

Damage Probably Caused By Incorrect Operation

Short circuit accident: Tools is not well insulated, or battery pack positive and negative electrodes are too close.
Failure to follow the correct operation method will cause the device not working properly.

Emergency Treatment In Exceptional Cases
Disconnect the device power supply and test cables.

Precautions In Exceptional Circumstances
If the operator uses tools without well insulation or improper operate to cause short circuit, please separate the cables immediately.

Other Safety Alerts
Strict compliance with safety operating norms and correct operating procedure.

Technical Features

Function Parameter

Model| EB480
Power input| AC 90~265V
Charging & discharging voltage range| 1.8~4.5V
Voltage measurement accuracy| ±0.1%FS±2mV (Maximum range 5V)
Charging & discharging current range| 0.1~ 5A
Current measurement accuracy| ±1%FS±0.05A (Maximum range 5A)
Battery Temperature Detection accuracy| ±2℃ ( -25℃–85 ℃) Charge and discharge temperature range is settable
Max channel quantity in single unit| 4 string x Max 12 cells
Charging & discharging power| 1200W Max
Equalization Test Port| 26Pin2
Temp Test Port| 24Pin
Display| 7-inch TFT LCD screen, resolution 800480
PC Data communication| TCP/IP ，USB-Device
Wireless communication| Wi-Fi (Wi-Fi antenna external)
Data transfer| U Disk (USB-Host)
Charging mode| Constant current charging + constant voltage charging
Discharge mode| Constant current (constant power, constant resistance discharge selectable)
Protections| Overcurrent and overvoltage protection for input and output
Safety Testing

Breaking down test

| AC input-metal shell: 2200Vdc 1min
DC input-metal shell: 2200Vdc 1min
Working Environment
Cooling| Forced air cooling
Temperature| Operating temperature: -5~40℃; Storage temperature: -20~70℃
Humidity| Relative humidity 0-90% (40±2℃)
Elevation| Rated altitude of 2000 meters
Size and Weight
Dimension| 640276490mm
Weight| 28kg

Operating Instructions

Panel Description

No.	Name	Description
1	Handle	Easy to move the device
2	Display	7-inch touch screen
3	Communication Port	RS485 extend port, reserved for functional expansion,

Interface PIN Definition

26PIN：Equalization port #1

** Pin_SN| Description| Line Marker| Pin_SN| Definition| Line Marker
---|---|---|---|---|---
1| Cell #1 –| B1-| 14| Cell #13 –| B13-
2| Cell #1 +| B1+| 15| Cell #13 +| B13+
3| Cell #2 +| B2+| 16| Cell #14 +| B14+
4| Cell #3 +| B3+| 17| Cell #15 +| B15+
5| Cell #4 +| B4+| 18| Cell #16 +| B16+
6| Cell #5# +| B5+| 19| Cell #17 +| B17+
7| Cell #6 +| B6+| 20| Cell #18 +| B18+
8| Cell #7 +| B7+| 21| Cell #19 +| B19+
9| Cell #8 +| B8+| 22| Cell #20 +| B20+
10| Cell #9 +| B9+| 23| Cell #21 +| B21+
11| Cell #10 +| B10+| 24| Cell #22 +| B22+
12| Cell #11 +| B11+| 25| Cell #23 +| B23+
13| Cell #12 +| B12+| 26| Cell #24 +| B24+
2. 26PIN：Equalization port #2

Pin_SN| Definition| Line Marker| Pin_SN| Definition| Line Marker**
---|---|---|---|---|---
1| Cell #1 –| B1-| 14| Cell #13 –| B13-
2| Cell #1 +| B1+| 15| Cell #13 +| B13+
3| Cell #2 +| B2+| 16| Cell #14 +| B14+
4| Cell #3 +| B3+| 17| Cell #15 +| B15+
5| Cell #4 +| B4+| 18| Cell #16 +| B16+
6| Cell #5 +| B5+| 19| Cell #17 +| B17+
7| Cell #6 +| B6+| 20| Cell #18 +| B18+
---|---|---|---|---|---
8| Cell #7 +| B7+| 21| Cell #19 +| B19+
9| Cell #8 +| B8+| 22| Cell #20 +| B20+
10| Cell #9 +| B9+| 23| Cell #21 +| B21+
11| Cell #10 +| B10+| 24| Cell #22 +| B22+
12| Cell #11 +| B11+| 25| Cell #23 +| B23+
13| Cell #12 +| B12+| 26| Cell #24 +| B24+

Main Unit Connection

Firstly connect the equalization bus-harness to the equalizing test socket of the balancer, then plug the equalization bus-harness and the equalization sub harness, and finally clamp the clamps of the equalization sub harness on the battery module under test in turn.

Equalization sub harness and Battery Pack Connection
According to the wire label on the equalization sub harness, B1 – is connected to the negative electrode of No. 1 single cell (B1), B1 + is connected to the positive electrode of No. 1 single cell (B1), B2 + is connected to the positive electrode of No. 2 single cell (B2), and connected in sequence.
Note: the nearest to the negative terminal of the battery module is the No. 1 single cell.

Working Power Supply Connecting
Connect the power supply cord with the main unit AC socket, and please ensure AC power supply can support Single phase 90~265V AC Max 10Amp output.

Main Unit Operation

Welcome Screen

Main Menu
Click the function module on the main menu to enter the corresponding function operation interface.

General Settings
“System settings” mainly includes Language settings, Wi-Fi connection, Device upgrade, Debug and Concerning. Click the button in the upper right corner of the main interface, and select the options to be set or viewed in the expanded list.
Language settings： Used to change the system language.
Wi-Fi connection： Used for Wi-Fi connection setting of the balancer.
Device upgrade：Can use U disk for local upgrade, or choose upgrade online.
Debug：Only for development and maintenance.
Concerning：Used to view information such as software and hardware version number, device number and serial number.

Equalizing Maintenance

Tap Balanced in the main interface to enter the following interface.

Equalizing Maintenance Setting
Tap the button in the upper right corner and select the option to be set in the expanded list.

Color Setting
Used to set the color display of the balancer in various working status.
Temperature Protection
Used to set the temperature protection high and low limit for different type of lithium battery packs and the balancer internal cooler. If the battery temperature exceeds the set range during the use of the equipment, it will stop working and pop up an alarm message.
Battery Number Setting
Used to adjust the number of cells in the battery pack.
Saving Interval
Used to set the data saving interval time of discharge, charge and equalizing.

Parameters

The balancer can maintain at most 4 groups of batteries, each with 12 batteries (subject to the number of connected batteries).
When power on, if the battery pack is connected correctly, the current status of the battery pack will be displayed after the battery pack number. If the battery pack is not connected or there is a connection failure, the display status is: unconnected.

Parameters| Parameter Description| Parameters| Parameter Description
---|---|---|---
Battery pack number and status| Display the battery pack number and the status of the battery pack.|

Work Mode

|

Charge, discharge or equalizing

Work Time| Work time since test started.| Battery Types| The type of lithium battery pack.

Cell Qty

Temperature

| Max temperature measured in battery pack.|

Operation

| Start/stop discharge, charge or equalizing.

Battery Pack Settings
On the “Equalizing Maintenance” interface, tap Settings button below the battery pack to enter the corresponding setting interface for the battery pack.

Module No.: Enter the battery pack number or the corresponding information for testing to name it.
Work Mode: Click the drop-down menu to select the corresponding work mode (charge, discharge or equalizing).
Battery Type: Click the drop-down menu to select the appropriate lithium battery pack.
Cell Qty: Click the drop-down menu to select the corresponding cell number of the test battery pack.
Test the Battery: Click Select All to select all batteries; deselect all, then click the battery that requiring to be tested.
Voltage Threshold : Input the end voltage to terminate the testing.
Operating Current: Input the max discharge or charge current.
click to save the adjustment, and click back to the testing interface.

Start the Test

On the “Equalizing Maintenance” interface, tap Start button to start the test.
Tap Details to view parameters such as cell voltage, working current, working status, test duration, and capacity of the corresponding test battery pack.
Equalizing Finished Conditions：
- When the cell voltage reach the voltage threshold, and current is less than 0.2A over 3 mins, the unit will display Finished on this cell channel.
- All working cell channels display ‘Finished’, the whole equalizing is complete.

Data Analysis

After the test is completed, the test data is displayed in column chart or curve mode.
Tap Bar Chart, the test data voltage is displayed as a bar graph.
Tap Curve Chart to test the data voltage and display it as a curve graph.

Data Export
Test data can be transferred to U disk. On the main interface, tap Data Export to enter the data export interface, click the data to be transferred, insert a U disk and tap USB Download, the data will be stored in the U disk in Excel format.

Fault Analysis and Troubleshooting

No.	Fault Situation	Troubleshooting Methods

1

| Main unit temperature is too high| Confirm the placement of the device, pay attention to ventilation, heat flow.
2| Internal memory insufficient| Periodically transfer data files to USB disk and delete some files to release the space
3| USB Error| Check the free space in USB disk

Transport & Storage

This balancer is equipped with special equipment box for packing, which is has anti-vibration and reliable for transportation.
Storage conditions: dry storage room, temperature: -20~70℃, Humidity: 95%Within.

Environmental Protection and Others

The outer carton of this equipment is made of recyclable material.
The main unit and other components are non pollution sources.

Warranty

THIS WARRANTY IS EXPRESSLY LIMITED TO PERSONS WHO PURCHASE SMARTSAFE PRODUCTS FOR PURPOSES OF RESALE OR USE IN THE ORDINARY COURSE OF THE BUYER’S BUSINESS.
SMARTSAFE electronic product is warranted against defects in materials and workmanship for one year from date of delivery to the user.
This warranty does not cover any part that has been abused, altered, used for a purpose other than for which it was intended, or used in a manner inconsistent with instructions regarding use. The exclusive remedy for any automotive meter found to be defective is repair or replacement, and SMARTSAFE shall not be liable for any consequential or incidental damages.
Final determination of defects shall be made by SMARTSAFE in accordance with procedures established by SMARTSAFE. No agent, employee, or representative of SMARTSAFE has any authority to bind SMARTSAFE to any affirmation, representation, or warranty concerning SMARTSAFE automotive meters, except as stated herein.
Disclaimer
The above warranty is in lieu of any other warranty, expressed or implied, including any warranty of merchantability or fitness for a particular purpose.

Purchase Order
Replaceable and optional parts can be ordered directly from your SMARTSAFE authorized dealer. Your order should include the following information:

Order quantity
Part number
Part name

Statement:
SMARTSAFE reserves the rights to make any change to product designs and specifications without notice. The actual object may differ a little from the descriptions in the manual in physical appearance, color and configuration. We have tried our best to make the descriptions and illustrations in the manual as accurate as possible, and defects are inevitable, if you have any question, please contact local dealer or after-sale service center of SMARTSAFE, SMARTSAFE does not bear any responsibility arising from misunderstandings.

FCC Caution

This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions:?(1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.
Any changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment.
NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation.
If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

Reorient or relocate the receiving antenna.
Increase the separation between the equipment and receiver.
Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
Consult the dealer or an experienced radio/TV technician for help.

To maintain compliance with FCC’s RF Exposure guidelines, This equipment should be installed and operated with minimum distance between 20cm the radiator your body: Use only the supplied antenna.