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BigBattery| 48V 2*FALCON ELITE LiFePO4-122Ah-6.2kWh + 3K Inverter Kit

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Price: $2,880.00 USD
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BigBattery 48V 2*FALCON ELITE LiFePO4-122Ah-6.2kWh + 3K Inverter Kit

POWERED & PREPARED! BigBattery’s 48V 6.12kWh LiFePO4 FALCON Elite Inverter Kit is our latest all-in-one solar and off-grid power system!

The FALCON Elite was inspired by our top-performing 72V FALCON, and brings the power of the FALCON down to 48 volts. The FALCON Elite is one of our most energy-dense 48V models at a whopping 49.5 Wh/ft3. Equipped with Tier 1 LFP cells, our proprietary advanced BMS, and 300A Safety Fuse, the FALCON Elite is a safe, reliable, and energy-efficient lithium upgrade for home power systems.

But that’s not all! This FALCON Elite Inverter Kit includes an advanced 3000W solar inverter and charger from Growatt. This inverter consists of an integrated MPPT charge controller, AC transfer switch, joint PV and grid load support, multiphase outputs, a sleek LCD display, and more. This inverter is the ideal solution for any mid-sized home power system looking to ensure reliable, efficient power all season long. With an included WiFi module, you can remotely monitor the performance and status of your power anytime, anywhere. Ensure your home is powered and prepared with the all-new 48V FALCON Elite Inverter Kit from BigBattery!

What"s Included:

2 × 48V FALCON ELITE - LiFePO4 - 61Ah - 3.1kWh
1 × Parallel Busbar
2 × 4AWG 3FT BB175 to Ring Terminal Cable

Designed For 48V Applications

  • RVS
Tech Specs

Single 48V FALCON ELITE Battery Tech Specs

SKU: AFLCN-48031-G1
System Voltage: 48V
Nominal Voltage: 51.2V
Chemistry: LiFePO4
kWh Capacity: 3.1kWh
Ah Capacity: 61Ah
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: 150A
Max Continuous Power: 7000W
Max Discharge Peak Current: 360A (6 Seconds)
Max Charge Current: 60A
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: 68 lb (30.8 kg)
Depth: 10.4 in (26.4 cm)
Width: 14.2 in (36.1 cm)
Height: 9.6 in (24.4 cm)
Safety Features: Fuse (300A) & Battery Management System
(Over/Under Voltage, Over Current, &
Over/Under Temperature Protections)
Max Connections: Up To (8) Parallel

Specs Sheet

BigBattery| 48V 48V FALCON ELITE - LiFePO4 - 61Ah - 3.1kWh

Growatt 3K Inverter Specs

Battery Voltage: 48VDC


Rated Power: 3000VA/3000W
Surge Power: 6000VA
AC Voltage Regulation (Battery Mode): 100/110/120VAC at 50/60Hz
Waveform: Pure Sine Wave
Efficiency (Peak): 90%
Transfer Time (Typical) : 10ms
Transfer Time (Max.) : 20ms
Parallel Capability: Yes, (Max.6 units)


Input Voltage: 120VAC
Selectable Voltage Range (For Personal Computers): 95 - 140VAC
Selectable Voltage Range (Home Appliances): 65 - 140VAC
Charge Current 40A
Frequency Range (Auto-Sensing): 50/60Hz


Max. PV Array Power: 4000W
Max. PV Charge Current: 80A
Max. PV Array Open Circuit Voltage: 250VDC
No. of Independent MPP Trackers / Strings Per MPP Tracker: 1/1
Standby Power Consumption: 2W


Weight: 26.5 lbs
Depth: 5.3 in
Width: 13 in
Height: 19.1 in


Operating Temperature: 0°C (32°F) - 50°C (122°F)
Storage Temp: -15°C (5°F) - 60°C (140°F)
Relative Humidity (Non-Condensing): 5% - 95%
Protection Rating: IP20

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Customer Reviews

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BigBattery off-grid lithium battery banks are made from top-tier LiFePO4 cells for maximum energy efficiency. Our solar line-up includes the most affordable price per kWh in energy storage solutions. Lithium-ion batteries can also store about 50% more energy than lead-acid batteries! Power your off-grid dream with BigBattery today!

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Can your batteries be used in series?

We no longer offer our batteries for use in series.

Do your batteries have a thermal management system?

All of our batteries have a thermal management system that is controlled by the BMS (Battery Management System). This Thermal management system will not only prevent the battery from being used if the temperature is too high, but also if the temperature is also too low.

Can I use my OEM charger?

No. Lead acid battery chargers charge at different currents and voltages than our lithium batteries. Using your OEM charger can damage your battery cells and void your battery’s 10 year warranty. We have several chargers optimized for and calibrated to every battery we sell.

Why does the voltage drop when unplugging the charger?

The voltage drop that you experienced is called the “bubble voltage” and is perfectly normal for Lithium Batteries. LiFePO4 batteries behave differently than other battery chemistries. The Voltage vs Capacity is not linear. For example, if you have a voltage between (13.3 - 14.6) or (26.6 - 29.2) or (53.6 - 58.4)  you will have more than 99% of the capacity. This essentially means that “Bubble Voltage” contains less than 1% of the entire capacity and the drop when a load is placed is instant.

Can I leave my batteries outside?

No. Our batteries are not marine rated or weather proof, so leaving them out under the sun all day or in the rain can damage the batteries. (This type of damage is not covered under the 10 year warranty.

How many years will my battery last?

Lithium Iron Phosphate (LifePO4) batteries can be cycled from 3000 to 7000 times. If you cycle the battery daily with an 80% DoD (Depth of Discharge), then you can get even more than 10 years of use from your battery.

Is BigBattery compatible with all Inverters and Charger Controllers?

Our batteries work great with almost all inverter/charger controller brands. The only brand we are not compatible with is RENOGY. Please confirm that your inverter can be set to the operating parameters of the battery you’re interested in before purchasing. Parameters can be found as a downloadable PDF spec sheet on every battery product page.

How do I install my battery?

All of our batteries come with free ring terminals that can be used to connect your battery to your inverter, cart, or busbar system. We also sell a parallel busbar that can be used in tandem with the included ring terminals to parallel multiple batteries.

What is the difference between the 12 A and the Upgraded Charger?

Upgraded Charger:

  • Charging Current: 15A
  • Input Voltage: 110V / 220V
  • Output Voltage: 58.8v
  • Charging Time: 5 h (approx)
  • On-Board Charger: Yes
  • Protection: IP65

Does Big Battery sell used/surplus batteries?

In the past Big Battery sold refurbished batteries, such as solar batteries made from recertified Nissan Leaf modules. As of the year 2020, all batteries sold are new, never-previously-cycled batteries that come with a complimentary 10 year warranty.

How long before my order ships?

It can take anywhere from a week to no more than two weeks for shipment. This time allows us to assemble, test, and inspect each battery prior to shipping.

Why does shipment take so long?

We build every battery upon order, so shipment may take anywhere from a week to no more than two weeks.This is to allow us to assemble, test, and inspect every unit prior to shipment.

What does your 10 year warranty cover?