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Operation

Can not charge

 

1) Disconnect the power cables and measure voltage of the inverter.

2) If the voltage is 56.8~57.6V, restart the battery, connect the power cables

and try again. 

3) If the battery still cannot be charged, turn off the unit and contact us.

Can not discharge 

1) Disconnect the power cables and measure the voltage on battery side.

2) If the voltage is under 43.2V, charge the battery.

3) If the voltage is above 50V and still cannot discharge, turn off battery and

contact us. 

5.2 EMERGENCY SITUATIONS 

5.2.1 Leaking Batteries 

If the battery pack leaks electrolyte, avoid contact with the leaking liquid or gas. If 
exposed to the leaking substance, immediately perform the actions below: 

Inhalation: Evacuate the contaminated area, and seek medical attention.

Contact with eyes: Rinse eyes with flowing water for 15 minutes, and seek medi-
cal attention.

Contact with skin: Wash the affected area thoroughly with soap and water, and
seek medical attention.

Ingestion: Induce vomiting, and seek medical attention.

5.2.2 Fire

 

DO NOT USE WATER!!

Use only dry powder fire extinguisher

If possible and safe to do so, move the battery pack to a safe area before it
catches fire.

5.2.3 Wet Batteries

 

If the battery pack is too wet or submerged in water, do not make contact with
it, and then contact us for technical support.

5.2.4 Damaged Batteries

 

Damaged batteries are dangerous and must be handled with the utmost care.
They are not fit for use and may pose a danger to people or property. If the bat-
tery pack seems to be damaged, contact us immediately.

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Summary of Contents for MD48 Series

Page 1: ...USER MANUAL A1 For residential energy storage Scan for more information MD48 Series Utilizing clean energy efficiently to keep the earth infinitely green ...

Page 2: ...TERFACE INTRODUCTION 04 2 4 SPECIFICATIONS 05 SAFE HANDLING GUIDE 03 3 1 TOOLS 07 3 2 SAFTY GEARS 07 3 3 INSTALLATION LOCATION 07 INSTALLATION AND OPERATION 04 4 1 PACKING LIST 08 4 2 ELECTRICAL WIRING CONNECTION 10 4 3 COMMUNICATION CONNECTION 10 4 4 ROUTINE OPERATION 11 4 5 PARALLEL USE OF BATTERIES 13 OTHERS 05 5 1 TROUBLESHOOTING 15 5 2 EMERGENCY SITUATIONS 16 5 3 CONTACT 17 ...

Page 3: ...lude any internal or external compo nents Do not connect battery with PV solar wiring directly Any foreign object is prohibited to be inserted into any part of the battery Any warranty claims are excluded for direct or indirect damage due to items above 1 1 BEFORE CONNECTION After unpacking please check the battery and packing list first if the battery is damaged or spare parts are missing please ...

Page 4: ...the batteries working with faulty or incompatible inverter In case of fire only dry powder fire extinguisher can be used liquid fire extin guishers are prohibited Please do not open repair or disassemble the battery We do not undertake any consequences or related responsibility due to violation of safety operation or violating of design production and equipment safety standards 02 ...

Page 5: ...TURES LiFePO4 cathode material with excellent safety and life performance 2 4kWh 2U height 5 12kWh 3U height 19 inch module design easy to install Integrates the most advanced BMS It can collect battery information such as voltage current and temperature and manage the battery system to extend its service life Compatible with Most Inverters Up to 15 in parallel 2 2 APPLICATION TOPOLOGY The followi...

Page 6: ...he batteries as master or slaves in parallel model RS485 3 port For communication with Growatt inverters ON OFF button To start or shut down the battery CAN 1 port For communication with BST Sofar Sermatec Goodwe Solis and Deye inverters Status Indicators Includes RUN and ALARM indicator CAN2 port For communication with Victron and SMA inverters RS485 2 port For inner communication between paralle...

Page 7: ...al Nominal Voltage V 48 51 2 Operating Voltage Range V 40 5 53 5 43 2 56 8 Recommend Charge Discharge Current A 25 25 50 50 Maximum Charge Discharge Current A 50 50 100 100 Operating Charge Temperature 0 50 Discharge Temperature 10 50 Storage Temperature 20 45 Humidity 5 95 RH No Condensation Altitude 4000m Ingress Protection IP20 Communication Interface CAN RS485 Optional WIFI BLE Certification U...

Page 8: ...Introduction 06 Figure 2 4 1 Overall dimensions of MD48 50 2U 484mm 440mm 88 5mm 484mm 440mm 133mm Figure 2 4 2 Overall dimensions of MD48 100 3U ...

Page 9: ...with the bat tery pack Insulated gloves Safety goggles Safety shoes 3 3 Location Make sure that the installation location meets the following conditions The installation site must be suitable for the size and weight of the battery The battery must be installed on a firm surface to sustain the weight The area is dry and ventilated There are no inflammables and explosives nearby The ambient temperat...

Page 10: ...escription Unit Quantity 1 Battery MD48 50 2U pcs 1 2 User Manual For MD48 series pcs 1 3 Positive pole parallel cable Orange 0 16m 4AWG pcs 1 4 Negative pole parallel cable Black 0 16m 4AWG pcs 1 5 RJ45 communication cable For CAN communication 2m pcs 1 6 For RS485 communication 0 2m pcs 1 7 Grounding wire Black 1 5m 10AWG pcs 1 Battery User Manual Parallel Cable Communication Cable Grounding Wir...

Page 11: ...r MD48 series pcs 1 3 Positive pole parallel cable Orange 0 16m 4AWG pcs 1 4 Negative pole parallel cable Black 0 16m 4AWG pcs 1 5 RJ45 communication cable For CAN communication 2m pcs 1 6 For RS485 communication 0 2m pcs 1 7 Grounding wire Black 1 5m 10AWG pcs 1 Table 4 1 2 Packing list of MD48 100 3U ...

Page 12: ...ion 2 The power cable connecting battery and inverter is optional Please order according to the actual quantity required 3 Please connect the positive pole after completing the negative pole connection It is strictly forbidden to insert the positive and negative pole cables into the battery at the same time and then connect the inverter otherwise it may cause short circuit risk due to overlap ping...

Page 13: ... the wake up button for 1 second then release the button 3 Access communication signal RS485 CAN 4 4 3 Power down mode When the lowest cell voltage is lower than the power down voltage and the duration reaches the power down delay time while meeting the non charging current at the same time the battery will enter into the power down low power mode When any of the following conditions are met the b...

Page 14: ... OFF 75 100 ON ON ON Flash ON ON ON ON RUN Indicator ON Flash Mode Normal alarm protection Alarm indicator Run indicator Power Off Sleep OFF OFF Standby Normal OFF Flash Alarm Flash Flash Charging Normal OFF ON Alarm Flash ON Over charge protection OFF ON Temperature overcurrent short circuit and reverse connection protections ON OFF Discharging Normal OFF Flash Alarm Flash Flash Low voltage prote...

Page 15: ...age difference between batteries is less than 1V It is recommended that the output current of the single battery be lower than 0 5C When the total output current is less than 100A a single cable connection shall be adopted and the power cable must be output from the top and bottom batteries respectively As shown in Figure 4 5 1 below When the total output current is greater than 100A and less than...

Page 16: ...ddresses to each module The dialer is binary please refer to the following table for settings No Dial Switch Position No Dial Switch Position No Dial Switch Position 1 Master ON OFF OFF OFF 6 OFF ON ON OFF 11 ON ON OFF ON 2 OFF ON OFF OFF 7 ON ON ON OFF 12 OFF OFF ON ON 3 ON ON OFF OFF 8 OFF OFF OFF ON 13 ON OFF ON ON 4 OFF OFF ON OFF 9 ON OFF OFF ON 14 OFF ON ON ON 5 ON OFF ON OFF 10 OFF ON OFF O...

Page 17: ...ttery will not charge Above 55 or under 10 the battery will not discharge Solution Move battery to a more suitable location to ensure the normal oper ating temperature range is between 0 and 55 2 Current If current is higher than 120A battery protection will turn on Solution If the current it too high change the settings of the inverter 3 High voltage If charging voltage is above 57 6V battery pro...

Page 18: ...rform the actions below Inhalation Evacuate the contaminated area and seek medical attention Contact with eyes Rinse eyes with flowing water for 15 minutes and seek medi cal attention Contact with skin Wash the affected area thoroughly with soap and water and seek medical attention Ingestion Induce vomiting and seek medical attention 5 2 2 Fire DO NOT USE WATER Use only dry powder fire extinguishe...

Page 19: ... 3 CONTACT Please contact us if you need technical support You may need to provide the following information Item No of inverter Product series LED flashing status and description Configuration of your system 17 ...

Page 20: ...SHENZHEN LIMITED Add A B C No 37 Xinlong Road Dakang Community Hengang Street Longgang District ShenZhen China Tel 86 0755 84260300 84260303 Fax 86 0755 84260306 Email sales bstbattery com Web www bstbattery com ...

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