Page 2
VERSION HISTORY Version Date Chapters Reason For Change 12/26/2023 Manual development 2/29/2024 Spec updates 9/4/2024 Formatting updates Need Further Assistance? Email Us @ Support@BigBattery.com or Call Us @ (818) 280-3091...
1. Definition of Terms • AWG - American Wire Gauge • A - Amp(s) • Ah - Amp-hour(s) • AC - Alternating Current • Battery Module - Single battery • Battery System - Two or more battery modules connected to a control box •...
Never short-circuit DC inputs. This may result in a risk of electric shock or fire. • Do not disassemble the battery. Contact BigBattery for proper handling instruc- tions. Incorrect servicing or re-assembly may result in a risk of electric shock, fire,...
Page 6
Handle batteries carefully to prevent damage. Avoid pulling, dragging, or mishan- dling. • Inspect batteries before use. Don’t use damaged or swollen batteries. Contact BigBattery immediately if damage or swelling is present. • Don’t paint any part of the batteries, inside or out. •...
The 48V HUSKY 2 represents a leap forward in energy storage technology, offering a compact and scalable solution for mobile, industrial, and off-grid applications.
5.2 Battery Specs FHSKY-48051-G2 System Voltage Nominal Voltage 51.2V Chemistry LiFePO4 kWh Capacity 5.12 kWh Ah Capacity Charging Voltage Range 55.6V - 57V Max Charge Voltage 58.8V Operating Voltage Range 48V - 57V Suggested Low Voltage Cutoff 48V - 50.8V BMS Cutoff Range 42V - 47V Cell Configuration...
5.4 Battery Communication Ports Details Details CAN-H WARK CAN-L RS485 A+ (T/R+) RS485 B- (T/R-) Note: Both RJ-45 communication ports can use RS485 or CANBus protocols for parallel communications. 5.5 Battery LED Indicators Status Operation Alarm Details Shutdown / Sleep Standby Normal Flash 1...
Inspect batteries upon receipt for any signs of damage before use. In case of battery damage, reach out to BigBattery for repair or replacement. Avoid using a defective battery as it may result in incorrect battery voltage that could potentially ruin your appliances.
Page 14
Figure 3: HUSKY 2 Mounting Installation When connecting several batteries in parallel, you can use the flat metal plates on the sides of the case as connectors, and secure the batteries together using an electric wrench, as shown in Figure 4. Figure 4: HUSKY 2 Parallel Mounting Installation When using a single battery, connect it directly to the SoC Meter using Address No.
Page 15
Figure 5: HUSKY 2 Communication Cable Connection Diagram Connect the batteries in parallel using the 4AWG +/- Ring Terminal Cables. Ensure that all positive terminals are connected to each other, and all negative terminals are connected to each other, as shown in Figure 6. Figure 6: HUSKY 2 Power Cable Connection Diagram...
Connect the batteries' remaining positive and negative terminals to the main posi- tive and negative terminals on your system or vehicle. 7. Battery Commissioning In order for the batteries to communicate with each other, they need to have their ID addresses set using the mobile monitoring app.
Page 17
Figure 8: Connecting HUSKY 2 Batteries & Monitoring App Select the ID address. Enter the 'Settings' interface. Click on 'Module ID' and select the appropriate ID, as shown in Figure 9. The default selection is ID1. The master battery that connects to the meter must be set to ID1. The next battery in the daisy chain should be set to ID2, and so on.
• Use LiFePO4 batteries for "opportunity charging." Charge them whenever you can with small amounts of energy, but do it with BigBattery chargers. It's better to do this than using fast chargers. Fast charging can make the battery's lifespan shorter.
8.3 State of Charge This is the Depth of Discharge curve of the HUSKY 2 batteries. Cycling in this zone will ensure a reasonable life expectancy. Occasionally this zone is okay. Dropping into this zone can lock the battery and reduce lifespan. 8.4 Storage •...
• Keep battery charge and discharge current under a 0.5 C-rating. • Never disassemble the battery, unless BigBattery Tech Support guides you. If the battery has any problems, contact BigBattery for assistance. • Keep the battery away from excessive physical shocks or vibration. These can dam- age the battery’s internal structure and hamper its operation.
Battery output voltage BMS does not operate Press the on/off button to is unstable normally restart the battery Charge and discharge Unbalanced cell voltages Examine/balance the cells capacity is insufficient Unable to charge BMS or cell/temperature Maintenance or replacement and discharge sensor is damaged Different SoC values of Normal occurence...
Make sure to call first to confirm they're open. If you can't find a safe disposal option, contact the BigBattery Customer Service team instead of improperly disposing of the battery. BigBattery can take care of recycling your batteries for you.
Need help?
Do you have a question about the 48V HUSKY 2 and is the answer not in the manual?
Questions and answers