Big Battery | 48V 3x MUSTANG Kit
Overview
POWER UP WITH THE MUSTANG!
BigBattery’s 48V 3x MUSTANG Kit is your ultimate LiFePO4 energy solution, offering a massive 21kWh of capacity. Whether you’re upgrading your golf cart for extended range or equipping your RV or camper van for off-grid freedom, the MUSTANG kit delivers the power to keep you moving.
Compact Design, Big Power
Each 48V MUSTANG packs 7kWh of energy and 139Ah of capacity into a durable steel casing. Engineered for peak performance and consistent power delivery, this battery ensures your system operates at its best, no matter the distance.
Built-In Safety You Can Rely On
The MUSTANG ensures worry-free performance with:
- Grade A Razor cells, the safest lithium option, designed to handle punctures without emitting fumes or fire.
- Advanced Beyond BMS technology featuring triple-layer protections against Short Circuit, Over Current, Voltage Fluctuations, and Temperature Extremes.
What's Included
3 × 48V MUSTANG - LiFePO4-139Ah-7kWh
2 × EG4 6kW (8kPV) OFF-GRID INVERTER
2 × 2AWG (Black and Red) 3FT Ring to Ring Terminal Cable
3 × 4AWG 4FT BB350 to Ring Terminal Cable
1 × Parallel Busbar
Specs and Downloads
| SKU: | AMSTG-48070-G1 |
| GTIN-12 (U.P.C.): | 850061252821 |
| System Voltage: | 48V |
| Nominal Voltage: | 51.2V |
| Chemistry: | LiFePO4 |
| kWh Capacity: | 7kWh |
| Ah Capacity: | 139Ah |
| Charging Voltage Range: | 55.6 - 58.0V |
| Max Charge Voltage: | 58.8V |
| Operating Voltage Range: | 47.2 – 58.8V |
| Suggested Low Voltage Cutoff: | 47.2 – 50.8V |
| BMS Cutoff Range: | 42 – 47V |
| Cell Configuration: | 16S |
| Max Continuous Discharge Current: | 120A |
| Max Continuous Power: | 7500W |
| Max Discharge Peak Current: | 300A (6 Seconds) |
| Max Charge Current: | 45A |
| Charge Temperature Range: | 0°C (32°F) / 55°C (131°F) |
| Discharge Temperature Range: | -20°C (-4°F) / 55°C (131°F) |
| Optimal Discharge Temperature Range: | 15°C (59°F) / 35°C (95°F) |
| Storage Temperature Range: | -5°C (23°F) / 35°C (95°F) (Max 6 Months) |
| Weight: | 146 lb (66.2 kg) |
| Depth: | 11.6 in (29.5 cm) |
| Width: | 39.9 in (101.4 cm) |
| Height: | 4.4 in (11.2 cm) |
| Safety Features: | Fuse (300A) & Battery Management System (Over/Under Voltage, Over Current, & Over/Under Temperature Protections) |
| Max Connections: | Up To (8) Parallel |
Inverter Specs
AC INPUT & OUTPUT
| AC Voltage: | 120V AC / 240V AC |
| AC Frequency: | 50 Hz / 60 Hz |
| Max. Continuous AC Current: | 37.5A @ 240V |
| Max. AC Input Power: | 9000W |
| AC Bypass: | 50A |
| Output Voltage: | 120V AC / 240V AC |
| Output Frequency: | 50 Hz / 60 Hz |
| Max. Continuous Output Current: | 25A @ 240V |
| Output Power: | 6000W |
| Surge Capacity: | 12000W (3.5 sec) / 11000W (5 sec) |
| Power Factor: | 0.99 (Full Load) |
| Reactive Power Adjustment Range: | -0.8 - 0.8 Leading Adjustable |
| Total Harmonic Distortion: | <3% |
| Switching Time: | <15 ms (Single) / <30 ms (Parallel) |
PV INPUT
| No. of MPPTs (Inputs per MPPT): | 2 (1) |
| Max. Input Current: | 17A / 17A |
| Max. Short Circuit Input Current: | 25A / 25A |
| DC Input Voltage Range: | 100 - 480V DC |
| Start Up Voltage: | 100V DC ± 10V DC |
| MPPT Operating Voltage Range: | 120 - 385V DC |
| MPPT Voltage: | 320V DC |
| Max. PV Array Power: | 8000W (4000W per MPPT) |
| MPPT Efficiency: | 99% |
BATTERY
| Nominal Voltage: | 48V DC |
| Battery Voltage Range: | 46.4 - 60V DC |
| Max. Discharge Current: | 140A |
| Max. Charge Current: | 125A |
| DC Cut-Off Voltage: | 59V DC |
| DC Recovery Voltage: | 57.4V DC |
| Charge Cut-Off Voltage: | 58.4V DC |
OPERATING ENVIRONMENT & DIMENSIONS
| Operating Temperature: | 32ºF - 113ºF (0ºC - 45ºC) |
| Storage Temperature: | 5ºF - 140ºF (-15ºC - 60ºC) |
| Altitude: | <6,561 ft (2000 m) |
| Relative Humidity: | 5 - 95% |
| Typical Noise Emission: | <58 dB |
| Protection Rating: | IP20 |
| Max. Parallel Connections: | 16 |
| Weight: | 52.9 lbs (24 kg) |
| Depth: | 5.25 in (132 mm) |
| Width: | 18 in (457 mm) |
| Height: | 25.5 in (648 mm) |
