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T
hanks for your purchasing the BMS8T for your vehicle.
R
ead the ENTIRE instruction manual to become familiar with the features/functions of the device
before operating. Down load the BMS installation video on
http://www.chargery.com/Video/BMS24T_C10325_operation_instructions.mp4
https://www.youtube.com/watch?v=39lYl3h1kOU
F
eel free to send an email to
any questions and suggestions.
Jason Wang
Revised : 3/15/2020
jasonwang3a@163.com
for 2S-8S LiPo/Li-ion, LiFe & LiTO
with Nissan Leaf battery
or call at 86 755 2643 6165 should you have
BMS8T
Low power consumption
High accuracy
2.8" TFT LCD display
Programmable
or
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Table of Contents
Related Manuals for Chargery BMS8T
Summary of Contents for Chargery BMS8T
- Page 1 High accuracy 2.8” TFT LCD display Programmable hanks for your purchasing the BMS8T for your vehicle. ead the ENTIRE instruction manual to become familiar with the features/functions of the device before operating. Down load the BMS installation video on http://www.chargery.com/Video/BMS24T_C10325_operation_instructions.mp4 https://www.youtube.com/watch?v=39lYl3h1kOU...
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Page 2: Safety Notes
LiPo & LiFe, LiTo Battery Management System BMS8T V3.03 Chargery BMS8T is designed special for LiPo,LiFe and LiTo battery pack applied to storage energy system and Electrical Vehicle including E-Motorcycle, E-Scooter and so on. The unit can measure or detect the battery voltage, cell voltage, charge &... - Page 3 LiPo & LiFe, LiTo Battery Management System BMS8T V3.03 Special update Add RS232 port, external device can read out all data from BMS8T Improve cell voltage detection accuracy Add over current protection during balancing Add low temperature protection(on LCD unit V3.03) Optimized SOC accuracy, new approaches are voltage based and coulomb counting, consideration the cell impedance at the same time.
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Page 4: Order Information
The BMS8T can fit with any lithium battery charger, when any cell over charged, the BMS8T will disconnect charge relay to cut off charge, if fit with CHARGERY charger, need not the charge relay. Only connect CHARGERY charger to BMS8T on COM1, when any cell reach OVP, the charge current will decrease automatically prevent any cell damaged. -
Page 5: Special Features
14. Supports upgrading the firmware program by USB port. 15. BMS8T provide users the maximal flexibility, key parameters can be programmed. 16. BMS8T display battery SOC or called battery gauge similar with car dashboard. Cell count, battery pack voltage and battery gauge (%) is displayed simultaneously. - Page 6 External power Cell 5+ Cell 6+ Cell 7+ Charge Controller Cell 8+ Discharge Controller COM2 Temperature Sensor 1 Temperature Sensor 2 COM3 COM1 Current Sense BMS8T main module Beeper COM2 STOP SET/START DOWN BMS8T display module www.chargery.com page 6 total 35...
- Page 7 COM2 spring wire COM3 Output RS232 level with the port, any external device can read out all data from BMS8T Two temperature sensors monitor the battery temperature, the sensor must tie to battery Temperature surface or gap of cells where the temperature should be the highest during charge or sensor discharge.
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Page 8: Program Setup
DOWN change the value. Press SET/START button shortly confirm the change. After finish all setup, press SET/START for 3 seconds quit the setup menu. When quit setup mode, BMS8T will record all parameters till next change. www.chargery.com page 8 total 35... - Page 9 LiPo & LiFe, LiTo Battery Management System BMS8T V3.03 NOTE: Please keep the default setup unless for special purpose. Parameters Min. Type Max. Step unit Charge Protection LiPo 3.90 4.20 4.35 0.01 LiFe 3.40 3.65 3.90 0.01 Over Charge Protection(P) Voltage LiTO 2.50...
- Page 10 BMS8T, but when cell voltage and temperature trigger the absolute maximum or minimum ratings, the BMS8T will force to cut off charge or discharge to make sure the battery safety, and prevent battery pack from explode or fire.
- Page 11 Balancer BMS8T can resume cell voltage balanced status at the shortest time, it is based on 1.2A balance current per cell, balance accuracy is 8mV. Balance can be operated in Storage or in charge or in discharge or in all status, the feature can be setup on program setup menu.
- Page 12 Press DOWN or UP button choose the item and press SET/START blink, then press DOWN or UP button modify, finally press SET/START button to run the BMS8T, or waiting for 8 seconds, the unit will start automatically. After started, battery type and cell count will not be changed unless power off BMS8T.
- Page 13 is 25% at least, the SOC can be calibrated automatically. COM2 is to connect to charger if you have CHARGERY charger, COM3 is to connect to external device. www.chargery.com...
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Page 14: Specifications
LiPo & LiFe, LiTo Battery Management System BMS8T V3.03 Specifications Battery range: 4S-8S LiPo & LiFe, LTO battery pack Accurate scope of the cell voltage: -5mV/+5mV Cell Voltage display range: 0.10~4.99V The voltage of external power：13-30V DC, 3A Balance current:1.2A per cell Temperature display range:-20℃~150℃,... - Page 15 Current Shunt Specifications Please use correct current shunt according to actual maximal charge and discharge current, singe shunt is enough for BMS8T, 75mV or less shunt is suggested. BMS8T can detect charge and discharge current by same shunt. All cell voltage and current are calibrated before delivery.
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Page 16: Current Calibration
LiPo & LiFe, LiTo Battery Management System BMS8T V3.03 Current Calibration Press SET/START 3 seconds enter into Program Setup and find the Current Calibration, you can calibrate the current to improve the measure accuracy. If use new current shunt, the current must be calibrated again. - Page 17 NOTE: BMS main unit and LCD display module must be updated separately Execute Chargery update tool software, When the port number (such as com5) appears, this shows the update tool identified the BMS. Click OPEN button lock the port please.
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Page 18: Typical Connection
LiPo & LiFe, LiTo Battery Management System BMS8T V3.03 Typical Connection There are 1 socket connecting to 2S-8S battery pack, 2S-4S battery connect to the socket 1 directly, but external power supply is essential, it is as following. Socket 1... - Page 19 LiPo & LiFe, LiTo Battery Management System BMS8T V3.03 4S+4S=8S, 8S cells connected in series First 4S battery negative CELL 1 CELL 2 SOCKET 1 CELL 3 CELL 4 First 4S battery positive CHARGERY Second 4S battery negative BMS8T CELL 5...
- Page 20 Before connect the relay to charge or discharge controller, please confirm the coil of relay voltage. The BMS8T controller will output 12V to power the coil, and total current for charge and discharge relay don’t be larger than 2.5A.
- Page 21 Before connect the relay to charge or discharge controller, please confirm the coil of relay voltage. The BMS8T controller will output 12V to power the coil, and total current for charge and discharge relay don’t be larger than 2.5A.
- Page 22 LiPo & LiFe, LiTo B & LiFe, LiTo Battery Management System BMS8T V3.03 www.chargery.com page 22 total 35...
- Page 23 LiPo & LiFe, LiTo B & LiFe, LiTo Battery Management System BMS8T V3.03 www.chargery.com page 23 total 35...
- Page 24 LiPo & LiFe, LiTo B & LiFe, LiTo Battery Management System BMS8T V3.03 www.chargery.com page 24 total 35...
- Page 25 BMS8T V3.03 Charge relay and discharge relay lectotype for BMS8T BMS8T can output 12V 3A to power the charge and discharge relay. So the relay coil driven voltage must be 12V and total current for charge and discharge relay don’t be larger than 2.5A.
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Page 26: Standard Accessory
LiPo & LiFe, LiTo Battery Management System BMS8T V3.03 Standard Accessory USB data cable Battery connection XHR-9PIN, 600mm Temperature sensor, 600mm Relay controller wire 600mm Warning LED, 300mm Warning Beeper, 300mm Current sensor wire, 600mm Communication COM3 Data line wire (4.5 meters) www.chargery.com... -
Page 27: Optional Accessories
LiPo & LiFe, LiTo Battery Management System BMS8T V3.03 Optional accessories 12V 100A, 200A 400A, 600A and 800A relay, all is normal open Rated Operating voltage 12V – 500V DC Continuous (Carry) Current, Typical 100A 200A 400A 600A 800A ≯80mV ≯80mV... - Page 28 Relay delay time board When battery start to discharge and power the motor, the surge current is very large, in order to restrain the current, CHARGERY designed the special board, it can fit with CHARGERY BMS8T, BMS16, BMS16T and BMS24T and so on.
- Page 29 LiPo & LiFe, LiTo Battery Management System BMS8T V3.03 The small current relay and large current connection is as below, Large power resistors Such as NTC Load + Laod + Small current discharge Large current Discharge Coil Coil relay controller relay controller The large power resistors must be chosen by delay time and load current.
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Page 30: Related Parts
LiPo & LiFe, LiTo Battery Management System BMS8T V3.03 Related parts The following device is related with BMS8T MODEL DESCRIPTION COMMENTS BMS16 For 2S-16S, without cell balancer 300A charge/discharge BMS16T For 2S-16S, 1.2A balance current per cell 600A max. charge/discharge BMS24T For 2S-24S, 1.2A balance current per cell... - Page 31 The relay life will be shortened and charge time will be longer. Chargery charger and BMS save a relay cost and shorten the charge time. The BMS on above picture is BMS24T, it is as a sample, the connection is as same as BMS8T and BMS16T NOTE Chargery charger decrease charge current according to “Over Charge Protection(P) Voltage”...
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Page 32: Version History
LiPo & LiFe, LiTo Battery Management System BMS8T V3.03 Version History Software Version of LCD unit Description V3.0 Update hardware and software at the same time, Release first time V3.01 debug a mistake on display V3.02 adjusted maximal cell difference can be set up to 1000mV V3.03... -
Page 33: Frequent Questions
LiPo & LiFe, LiTo Battery Management System BMS8T V3.03 Frequent questions Charge or discharge relay/DC contactor don’t be open(disconnect) or closed (connect) Confirm relay coil driven voltage, it must be 12V. b) Confirm relay coil consume power or current, don’t be over 1A for each relay or total current with two relay don’t be over 2.6A... - Page 34 LiPo & LiFe, LiTo Battery Management System BMS8T V3.03 If stop charging or stop discharging, please realize it on charger or load/inverter or other switcher. BMS power consumption At normal work mode, the BMS draw current from 8S battery (30V) is 10mA at LCD back light is off, and 15mA at LCD back light is ON.
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Page 35: Warranty And Service
Warranty and Service Chargery Power Co., Ltd. as manufacture of power system warrants its BMS8T and current Sensor to be free of defects in material and workmanship. This warranty is effective for 12 months from date of purchase. If within the warranty period the customer is not satisfied with the products performance resulting from a manufacturing defect, the accessory will be replaced or repaired.