Suitable for charging from Economy 7 such as Octopus Go. For detailed explanation of how to maximise Economy 7 essential information to work out which battery storage options is best for you please visit - Understanding Economy 7

To build a system to charge from the grid or from an existing PV system, please select the AC 5.0kw charger & 2-7 batteries. Brackets & fuse disconnector are optional. Up to 3 AC chargers can be installed on a single phase.

To build a system for a new pv installation, please select a suitable hybrid inverter, 2-7 batteries. Brackets & fuse disconnector are optional.

All in one unit includes everything required with hybrid inverter and up to 4 batteries.

Fox Energy Cube HV ECM4100 V2, 24.18kWh 1x Master 5x Slave £5,875.00 + VAT
Fox Energy Cube HV ECM4100, 28.21kWh 1x Master 5x Slave #1:FE-HV-EC-6-4.1-24.6 ECM4100 Data Sheet ECM4100 User Manual ECM4100 Warranty Suitable for charging from the grid such as Economy 7 & Octopus Go. For detailed explanation of how to maximise Economy 7 essential information to work out which battery storage options is best for you please visit - Understaning Economy 7 Compatible with Foc HV chargers only available on our Fox HV main page *Collections are not permitted due to health & safety regulations* This part is made up of the following items:1 x FE-HV-ECM-4100 Fox Energy Cube 4.03kWh HV Battery (Master) 5 x FE-HV-ECS-4100 Fox Energy Cube 4.03kWh HV Battery (Slave) Fox Energy Cube 4.1kWh - Stack of 3 (24.18kWh) Incl. Master ECM4100 4.03kWh CapacityScalable to 28.21kWh 90% Depth of DischargeWide Temperature TolerenceEasy InstallationCAN/RS485 CommunicationHigh Voltage The quick & easy install feature allows for more ECM4100 battery modules to be added post installation.Weight: 74.3kgDimensions (Width, Hight, Depth): 570mm x 350mm x 380mmThis battery stack allows for a MAXIUMUM OF 7 modules in a series and must include 1 Master
Fox Energy Cube HV ECM4100 V2, 28.21kWh 1x Master 6x Slave £6,840.00 + VAT
Fox Energy Cube HV ECM4100, 28.21kWh 1x Master 5x Slave #1:FE-HV-EC-7-4.1-28.7 ECM4100 Data Sheet ECM4100 User Manual ECM4100 Warranty Suitable for charging from the grid such as Economy 7 & Octopus Go. For detailed explanation of how to maximise Economy 7 essential information to work out which battery storage options is best for you please visit - Understaning Economy 7 Compatible with Foc HV chargers only available on our Fox HV main page *Collections are not permitted due to health & safety regulations* This part is made up of the following items:1 x FE-HV-ECM-4100 Fox Energy Cube 4.03kWh HV Battery (Master) 6 x FE-HV-ECS-4100 Fox Energy Cube 4.03kWh HV Battery (Slave) Fox Energy Cube 4.1kWh - Stack of 3 (28.21kWh) Incl. Master ECM4100 4.03kWh CapacityScalable to 28.21kWh 90% Depth of DischargeWide Temperature TolerenceEasy InstallationCAN/RS485 CommunicationHigh Voltage The quick & easy install feature allows for more ECM4100 battery modules to be added post installation.Weight: 74.3kgDimensions (Width, Hight, Depth): 570mm x 350mm x 380mmThis battery stack allows for a MAXIUMUM OF 7 modules in a series and must include 1 Master
Fox ECS4300 4.14kWh HV Battery (Slave) £967.00 + VAT
Fox ECS4300 4.14kWh HV Battery (Slave) #2: FE-HV-ECS-4300 Storage Systems - Li-ion Battery Pack Fox's ECS is a high-performance, scalable battery storage system. Its modular design allows for maximum flexibility. It is suitable for a broad range of storage applications. Additional batteries can be added, with a maximum storage capacity of 29.03 kWh. Fox ECS4300 4.14kWh Battery (Slave) Fox ECM4300 Datasheet Fox Product Compatibility Fox ECM4300 User Manual Fox ECM4300 Warranty *Collections are not permitted due to health & safety regulations Features: Plug and play easy install 4.14kWh Capacity Scalable to 29.03kWh 90% Depth of Discharge Wide Temperature Tolerance CAN/RS485 Communication High Voltage Specs: Weight: 38.3 kg Rated Power: 4,300 W Battery Type: Lithium Ion Nominal Energy: 4145 Wh Depth of discharge: 90.00 % Voltage: 57 V Continuous Discharge Rate (Normal Use): 2875 W Maximum Discharge Rate (5 Minutes): 2875 W Surge Discharge Rate (15 Seconds): 3737 W Maximum Charge Rate (5 Minutes): 2875 This battery requires a MINIMUM of 2 modules to work (Master + Slave). This battery can accommodate up 7 modules in a stack (1x Master + 6x Slaves).   If you are adding battery modules to an existing Energy Cube stack, please made sure that the new batteries are compatible with your original battery module. Must be installed by a qualified electrician.   Please note: In order to increase the product warranty from 5 to 10 years you must register your install with Fox online to activate the 10 year warranty, otherwise it's 5 years as standard. Please click here for registration page. You can review the warranty document for more information.
Fox ECS4300, 4.14kWh HV Battery (Master) £1,054.00 + VAT
Fox ECS 4.14kWh HV Battery (Master) #2: FE-HV-ECM-4300 Storage Systems - Li-ion Battery Pack Fox's ECS solar battery storage is a high-performance, scalable battery storage system. Its modular design allows for maximum flexibility. It is suitable for a broad range of storage applications. Additional batteries can be added, with a maximum storage capacity of 29.03 kWh. Fox ECM4300 Datasheet Fox Product Compatibility Fox ECM4300 User Manual Fox ECM4300 Warranty Features: Plug and play easy install 4.14kWh Capacity Scalable to 29.03kWh 90% Depth of Discharge Wide Temperature Tolerance CAN/RS485 Communication High Voltage Specs: Weight: 38.3 kgRated Power: 4,300 WBattery Type: Lithium IonNominal Energy: 4145 WhDepth of discharge: 90.00 %Voltage: 57 VContinuous Discharge Rate (Normal Use): 2875 WMaximum Discharge Rate (5 Minutes): 2875 WSurge Discharge Rate (15 Seconds): 3737 WMaximum Charge Rate (5 Minutes): 2875 W       This solar battery storage requires a MINIMUM of 2 modules to work (Master + Slave). This battery can accommodate up 7 modules in a stack (1x Master + 6x Slaves)   If you are adding battery modules to an existing Energy Cube stack, please made sure that the new batteries are compatible with your original battery module. Must be installed by a qualified electrician.   Please note: In order to increase the product warranty from 5 to 10 years you must register your install with Fox online to activate the 10 year warranty, otherwise it's 5 years as standard. Please click here for registration page. You can review the warranty document for more information.
Fox ECS HV ECM4300, 8.29kWh 1x Master 1x Slave £2,021.00 + VAT
Fox ECS HV ECM4300, 8.29kWh 1x Master 1x Slave #2: FE-HV-EC-2-4.3-8.6 Storage Systems - Li-ion Battery Pack Please view our battery storage information page for sizing and selecting the right battery storage system for you. Fox ECS 4.3kWh - Stack of 2 (8.29kWh) Incl. Master Fox ECM4300 Datasheet Fox ECM4300 User Manual Fox ECM4300 Warranty *Collections are not permitted due to health & safety regulations This is made up of: 1 x Fox ECS 4.14kWh HV Battery (Slave) (FE-HV-ECS-4300) 1 x Fox ECS 4.14kWh HV Battery (Master) (FE-HV-ECM-4300) Features: 4.14kWh Capacity Scalable to 29.03kWh 90% Depth of Discharge Wide Temperature Tolerence Easy Installation CAN/RS485 Communication High Voltage The easy install feature allows for more ECM4300 battery modules to be added post installation. Specs: Weight: 75.6 kg Battery Type: Lithium Ion Nominal Energy: 8290 Wh Depth of discharge: 90.00 % Voltage: 115 V Continuous Discharge Rate (Normal Use): 5760 W Maximum Discharge Rate (5 Minutes): 5760 W Surge Discharge Rate (15 Seconds): 7488 W Maximum Charge Rate (5 Minutes): 5760 W Dimensions (Width, Hight, Depth): 570mm x 350mm x 380mm This battery requires a MINIMUM of 2 modules to work (Master + Slave). This battery can accommodate up 7 modules in a stack (1x Master + 6x Slaves) Please note: In order to increase the product warranty from 5 to 10 years you must register your install with Fox online to activate the 10 year warranty, otherwise it's 5 years as standard. Please click here for registration page. You can review the warranty document for more information.
Fox ECS HV ECM4300, 12.44kWh 1x Master 2x Slave £2,988.00 + VAT
Fox solar battery storage ECS HV ECM4300, 12.44kWh 1x Master 2x Slave #2: FE-HV-EC-3-4.3-12.9 Storage Systems - Li-ion Battery Pack Please view our battery storage information page for sizing and selecting the right battery storage system for you. Fox ECS 4.3kWh - Stack of 4 (12.44kWh) Incl. Master Fox ECM4300 Datasheet Fox ECM4300 User Manual Fox ECM4300 Warranty *Collections are not permitted due to health & safety regulations This is made up of: 2 x Fox ECS 4.14kWh HV Battery (Slave) (FE-HV-ECS-4300) 1 x Fox ECS 4.14kWh HV Battery (Master) (FE-HV-ECM-4300) Features: 4.14kWh Capacity Scalable to 29.03kWh 90% Depth of Discharge Wide Temperature Tolerence Easy Installation CAN/RS485 Communication High Voltage The easy install feature allows for more ECM4300 battery modules to be added post installation. Specs: Weight: 114.9 kgBattery Type: Lithium IonNominal Energy: 12440 WhDepth of discharge: 90.00 %Voltage: 172 VContinuous Discharge Rate (Normal Use): 8640 WMaximum Discharge Rate (5 Minutes): 8640 WSurge Discharge Rate (15 Seconds): 11232 WMaximum Charge Rate (5 Minutes): 8640 W Dimensions (Width, Hight, Depth): 570mm x 470mm x 380mm This battery requires a MINIMUM of 2 modules to work (Master + Slave). This battery can accommodate up 7 modules in a stack (1x Master + 6x Slaves)   Please note: In order to increase the product warranty from 5 to 10 years you must register your install with Fox online to activate the 10 year warranty, otherwise it's 5 years as standard. Please click here for registration page. You can review the warranty document for more information.
1 Review Fox ECS HV ECM4300, 16.59kWh 1x Master 3x Slave £3,956.00 + VAT
Fox ECS HV ECM4300, 16.59kWh 1x Master 3x Slave #2: FE-HV-EC-4-4.3-17.2 Storage Systems - Li-ion Battery Pack Please view our battery storage information page for sizing and selecting the right battery storage system for you. Fox ECS 4.3kWh - Stack of 4 (16.59kWh) Incl. Master Fox ECM4300 Datasheet Fox ECM4300 User Manual Fox ECM4300 Warranty *Collections are not permitted due to health & safety regulations This is made up of: 3 x Fox ECS 4.14kWh HV Battery (Slave) (FE-HV-ECS-4300) 1 x Fox ECS 4.14kWh HV Battery (Master) (FE-HV-ECM-4300) Features: 4.14kWh Capacity Scalable to 29.03kWh 90% Depth of Discharge Wide Temperature Tolerence Easy Installation CAN/RS485 Communication High Voltage The easy install feature allows for more ECM4300 battery modules to be added post installation. Specs: Weight: 153.2 kgBattery Type: Lithium IonNominal Energy: 16590 WhDepth of discharge: 90.00 %Voltage: 230 VContinuous Discharge Rate (Normal Use): 11520 WMaximum Discharge Rate (5 Minutes): 11520 WSurge Discharge Rate (15 Seconds): 14976 WMaximum Charge Rate (5 Minutes): 11520 W Dimensions (Width, Hight, Depth): 570mm x 590mm x 380mm This battery requires a MINIMUM of 2 modules to work (Master + Slave). This battery can accommodate up 7 modules in a stack (1x Master + 6x Slaves) Please note: In order to increase the product warranty from 5 to 10 years you must register your install with Fox online to activate the 10 year warranty, otherwise it's 5 years as standard. Please click here for registration page. You can review the warranty document for more information.
Fox ECS HV ECM4300, 20.74kWh 1x Master 4x Slave £4,923.00 + VAT
Fox ECS HV ECM4300, 20.74kWh 1x Master 4x Slave #2: FE-HV-EC-5-4.3-21.5 Storage Systems - Li-ion Battery Pack Please view our battery storage information page for sizing and selecting the right battery storage system for you. Fox ECS 4.3kWh - Stack of 5 (20.74kWh) Incl. Master Fox ECM4300 Datasheet Fox ECM4300 User Manual Fox ECM4300 Warranty *Collections are not permitted due to health & safety regulations This is made up of: 4 x Fox ECS 4.14kWh HV Battery (Slave) (FE-HV-ECS-4300) 1 x Fox ECS 4.14kWh HV Battery (Master) (FE-HV-ECM-4300) Features: 4.14kWh Capacity Scalable to 29.03kWh 90% Depth of Discharge Wide Temperature Tolerence Easy Installation CAN/RS485 Communication High Voltage The quick & easy install feature allows for more ECM4300 battery modules to be added post installation. Specs: Weight: 191.5 kgBattery Type: Lithium IonNominal Energy: 20740 WhDepth of discharge: 90.00 %Voltage: 288 VContinuous Discharge Rate (Normal Use): 14400 WMaximum Discharge Rate (5 Minutes): 14400 WSurge Discharge Rate (15 Seconds): 18720 WMaximum Charge Rate (5 Minutes): 14400 W Dimensions (Width, Hight, Depth): 570mm x 710mm x 380mm Please note: In order to increase the product warranty from 5 to 10 years you must register your install with Fox online to activate the 10 year warranty, otherwise it's 5 years as standard. Please click here for registration page. You can review the warranty document for more information.
Fox ECS HV ECM4300, 24.88kWh 1x Master 5x Slave £5,891.00 + VAT
Fox ECS HV ECM4300, 24.88kWh 1x Master 5x Slave #2: FE-HV-EC-6-4.3-25.8 Storage Systems - Li-ion Battery Pack Please view our battery storage information page for sizing and selecting the right battery storage system for you. Fox ECS 4.3kWh - Stack of 5 (24.88kWh) Incl. Master Fox ECM4300 Datasheet Fox ECM4300 User Manual Fox ECM4300 Warranty *Collections are not permitted due to health & safety regulations This is made up of: 5 x Fox ECS 4.14kWh HV Battery (Slave) (FE-HV-ECS-4300) 1 x Fox ECS 4.14kWh HV Battery (Master) (FE-HV-ECM-4300) Features: 4.14kWh Capacity Scalable to 29.03kWh 90% Depth of Discharge Wide Temperature Tolerence Easy Installation CAN/RS485 Communication High Voltage The easy install feature allows for more ECM4300 battery modules to be added post installation. Specs: Weight: 229.8 kgBattery Type: Lead Acid Nominal Energy: 24880 WhDepth of discharge: 90.00 %Voltage: 345 VContinuous Discharge Rate (Normal Use): 17280 WMaximum Discharge Rate (5 Minutes): 17280 WSurge Discharge Rate (15 Seconds): 22464 WMaximum Charge Rate (5 Minutes): 17280 W Dimensions (Width, Hight, Depth): 570mm x 830mm x 380mm This battery requires a MINIMUM of 2 modules to work (Master + Slave). This battery can accommodate up 7 modules in a stack (1x Master + 6x Slaves) Please note: In order to increase the product warranty from 5 to 10 years you must register your install with Fox online to activate the 10 year warranty, otherwise it's 5 years as standard. Please click here for registration page. You can review the warranty document for more information.
Fox ECS HV ECM4300, 29.03kWh 1x Master 6x Slave (Full Stack) £7,055.00 + VAT
Fox solar battery storage ECS HV ECM4300, 29.03kWh 1x Master 6x Slave (Full Stack) #2: FE-HV-EC-7-4.3-30.1 Storage Systems - Li-ion Battery Pack Please view our solar  battery storage information page for sizing and selecting the right battery storage system for you. Fox ECM4300 Datasheet Fox ECM4300 Manual Fox ECM4300 Warranty Fox Battery Sizing Guide *Collections are not permitted due to health & safety regulations*   Suitable for charging from the grid such as Economy 7 & Octopus Go. For detailed explanation of how to maximise Economy 7 essential information to work out which battery storage options is best for you please visit - Understaning Economy 7 This product is made up of the following items: 1 x Fox ECS 4..14kWh HV Battery (Master) FE-HV-ECS-43000 6 x Fox ECS 4.14kWh HV Battery (Slave) FE-HV-ECM-4300 Don't forget: You must register your install with Fox online to activate the 10 year product warranty, otherwise it's 5 years as standard. Please check the warranty document for more information. This battery requires a MINIMUM of 2 modules to work (Master + Slave), and a MAXIMUM of 7 modules in a stack (1x Master + 6x Slaves).     In order to activate a 10 year warranty, you must register your install with Fox online. Otherwise it's 5 years as standard. Please click here for registration page. Please check the warranty document for more information. Quick, easy install feature allows for additional battery modules to be added post installation. 4.14kWh Capacity Scalable to 29.03kWh 90% Depth of Discharge Wide Temperature Tolerence Easy Installation CAN/RS485 Communication High Voltage Dimensions (Width, Hight, Depth): 570mm x 950mm x 380mm Specs Weight: 257.4kgBattery Type: Lithium IonNominal Energy: 29030 WhDepth of discharge: 90.00 %Voltage: 403 VContinuous Discharge Rate (Normal Use): 20160 WMaximum Discharge Rate (5 Minutes): 20160 WSurge Discharge Rate (15 Seconds): 26208 WMaximum Charge Rate (5 Minutes): 20160 W
Fox ECS HV ECM4800-2H V2, 9.32kWh 1x Master 1x Slave £2,782.00 + VAT
Fox ECS HV ECM4800-2H, 9.32kWh 1x Master 1x Slave solar battery storag #1: FE-HV-EC-2-4.8-9.6 Please view our battery storage information page for sizing and selecting the right battery storage system for you. Fox Cube EC4800 Data Sheet Fox Cube EC4800 Manual Fox Cube EC4800 Warranty *Collections are not permitted due to health & safety regulations* Suitable for charging from the grid such as Economy 7 & Octopus Go. For detailed explanation of how to maximise Economy 7 essential information to work out which battery storage options is best for you please visit - Understaning Economy 7 Compatible with Fox HV chargers only available on our Fox HV main page This product is made up of the following items:1 x FE-HV-ECM-4800 Fox ECS EC4800-2H, 4.74kWh HV Battery (Master) 1 x FE-HV-ECS-4800 Fox ECS EC4800-2H, 4.74kWh HV Battery (Slave) ECS is a high-performance, scalable battery storage system. The modular design allows for maximum flexibility, making it suitable for a broad range of storage applications. Additional batteries can be installed in series, allowing for a maximum storage capacity of 33.24kWh. Installation is easy, with a plug and play solution that can save valuable time for installers. 4.74kWh Capacity Scalable to 33.2kWh 90% Depth of Discharge Wide Temperature Tolerence Easy Installation CAN/RS485 Communication High Voltage The quick & easy install feature allows for more ECM4800-2H battery modules to be added post installation. This battery can have a MAXIMUM of 7 modules in a stack (1x Master + 6x Slaves) Weight: 82 kgBattery Type: Lithium IonNominal Energy: 9320 WhDepth of discharge: 90.00 %Voltage: 89 VContinuous Discharge Rate (Normal Use): 2240 WMaximum Discharge Rate (5 Minutes): 4480 WSurge Discharge Rate (15 Seconds): 5785 WMaximum Charge Rate (5 Minutes): 4480 W
Fox EQ4800, 4.66kWh HV Battery (Master) £1,228.00 + VAT
Fox EQ4800, 4.66kWh HV Battery (Master) #2: FE-HV-EQM-4800 Storage Systems - Li-ion Battery Pack Fox's EQ is a high-performance, scalable battery storage system. The modular design allows for maximum flexibility. It is suitable for a broad range of storage applications. Additional batteries can be added for a maximum storage capacity of 41.94kWh.   EQ4800 are compatible with ECS-4800 batteries Fox EQ4800 Datasheet Fox Product Compatibility Fox EQ4800 Warranty Features: Plug and play easy install 4.66kWh Capacity Scalable to 41.94kWh 90% Depth of Discharge Wide Temperature Tolerance CAN/RS485 Communication High Voltage Specs: Weight: 42 kgRated Power: 4,800 WBattery Type: Lithium IonNominal Energy: 4660 WhDepth of discharge: 90.00 %Voltage: 89.6 VContinuous Discharge Rate (Normal Use): 2330 WMaximum Discharge Rate (5 Minutes): 4460 WSurge Discharge Rate (15 Seconds): 5785 WMaximum Charge Rate (5 Minutes): 4460 W This battery requires a MINIMUM of 2 modules to work (Master + Slave). This battery can accommodate up to 9 modules in a stack (1x Master + 8 x Slaves) If you are adding battery modules to an existing Energy Cube stack, please made sure that the new batteries are compatible with your original battery module. Must be installed by a qualified electrician. Please note: In order to increase the product warranty from 5 to 10 years you must register your install with Fox online to activate the 10 year warranty, otherwise it's 5 years as standard. Please click here for registration page. You can review the warranty document for more information.
Fox EQ4800, 4.66kWh HV Battery (Slave) £1,219.00 + VAT
Fox EQ4800, 4.66kWh HV Battery (Slave) #2: FE-HV-EQS-4800 Storage Systems - Li-ion Battery Pack Fox's EQ is a high-performance, scalable battery storage system. Its modular design allows for maximum flexibility. The Fox EQ is suitable for a wide range of storage applications. Additional batteries can be added with a maximum storage capacity of 41.94kWh.   EQ4800 are compatible with ECS-4800 batteries Fox EQ4800 Datasheet Fox Product Compatibility Fox EQ4800 Warranty *Collections are not permitted due to health & safety regulations Features: Plug and play easy install 4.66kWh Capacity Scalable to 41.94kWh 90% Depth of Discharge Wide Temperature Tolerance CAN/RS485 Communication High Voltage Compatible with the predecessor battery ECM/S-4800 Specs: Weight: 41.5 kg Rated Power: 4,800 W Battery Type: Lithium Ion Nominal Energy: 4450 Wh Depth of discharge: 90.00 % Voltage: V Continuous Discharge Rate (Normal Use): 2225 W Maximum Discharge Rate (5 Minutes): 4450 W Surge Discharge Rate (15 Seconds): 3000 W Maximum Charge Rate (5 Minutes): 4450 W This battery requires a MINIMUM of 2 modules to work (Master + Slave). This battery can accommodate up 9 modules in a stack (1x Master + 7 x Slaves). If you are adding battery modules to an existing Energy Cube stack, please made sure that the new batteries are compatible with your original battery module. Must be installed by a qualified electrician. Please note: In order to increase the product warranty from 5 to 10 years you must register your install with Fox online to activate the 10 year warranty, otherwise it's 5 years as standard. Please click here for registration page. You can review the warranty document for more information.
Fox LAN monitoring stick £45.26 + VAT
Fox LAN monitoring stick #1: FE-LAN-STICK   The FoxESS Lan stick is used in place of the Wi-Fi dongle if a wired connection from inverter to the internet is required. This product cannot be used with Fox H3 Pro Series,  *Collections are not permitted due to health & safety regulations*  
Fox ESS EP11 10.36kWh 384V Battery 10 yr warranty £2,060.00 + VAT
Fox ESS EP11 10.36kWh 384V BatteryFE-HV-EP11 #2: FE-HV-EP11-10Y Storage Systems - Li-ion Battery Pack FOX EP11 Data Sheet FOX EP11 User Manual FOX Warranty FOX Battery Sizing Guide *Collections are not permitted due to health & safety regulations* The EP11 is a high-performance, scalable battery storage system. With maximum flexibility, it is suitable for a wide range of storage applications. Additional batteries can be installed in parallel allowing for a maximum storage capacity of 41.6kWh. Features 90% Depth of Discharge Scalable to 41.6 kWh Floor or Wall Mounting Compact and easy to install IP65 Rated High voltage and high efficiency Warranty 5 years Specs Weight: 99 kg Nominal Energy: 10,360Wh Depth of discharge: 90% Voltage: 384 V Continuous Discharge Rate (Normal Use): 10,368 W Maximum Discharge Rate (5 minutes): 10,368 W Surge Discharge Rate (15 seconds): 24,960 W Maximum Charge Rate (5 seconds): 10,638 W
Fox HV BMS V1 - Required for AC & Hybrid chargers £69.00 + VAT
Fox HV BMS - Required for AC & Hybrid chargers#1: FE-HV-BMS Storage Systems - Li-ion Battery Pack V1, only compatible with V1 HV2600 batteries Part No: FE-HV-BMS Storage Systems - Communication Module Fox high voltage BMS. 1 BMS required per stack of HV2600 batteries. Minimum of 2 batteries required. Not required for FOX AIO (All in one) only required for AC charger and Hybrid models;

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