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BigBattery 48V KONG [Choose Capacity: 12KWH, 15KWH or 19KWH] 48V Lithium Battery Bank | Stack up to 8 x Units | 10-Year Warranty

Rated 4.9 out of 5
Based on 37 reviews
Rated 4.9 out of 5
Based on 37 reviews
Your Price:
$4,490.00 $6,999.00
You Save: $2,509.00 36%
SKU: FKONG-48112-G1-12KWH

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Our 48V KONG Lithium Battery Banks are designed around NEW LiFePO4 cells complete with a BMS & 300A fuse. This battery is perfect as a drop-in replacement for lead-acid batteries in your off-grid home, energy storage system, etc. providing you with more capacity, shorter charge times & longer life!

Choose From 2 Capacity Options: 12KWH / 15KWH / 19KWH

This powerful lithium battery is by far one of the best and most cost-efficient powerwall batteries in its class. Capable of being connected in parallel with up to 8 total units, you can easily build a massive 48V battery bank with just two or three of these units. 

The 48V KONG comes with pre-installed Anderson connections making it ready to go for quick installation to any inverter, charge controller or bus bar. With the SB175 Anderson to ring terminal cable already included, you'll be up and running in no time!

Includes Comprehensive 10-Year Warranty & Guarantee:

  • Made in the USA
  • 10-Year Warranty!
  • Lifetime Customer Support (Phone, Live Chat Or Email)

48V KONG - 12KWH - SPECS

  •  LED Display
  •  Compact Modular Design
  •  High Temp Operating Range
  •  Best Power Density/Pack Size
  •  Best Aluminum Mosfet Design
  •  3000 A Short Circuit Protection
  •  High Cold-Cranking Amps (400A)

Specs:

    • Chemistry:           LiFePO4 (New)
    • Configuration:     16S 1P
    • Voltage:                48V
    • Ah Capacity:        233Ah
    • kWh Capacity:     12kWh
    • Wh Capacity:       12,000Wh

    Performance Specs:

    • Max Continuous Discharge Current:          150A
    • Max Continuous Power:                               7500W
    • Max Discharge Peak Current:                      350A (6 Seconds)
    • Voltage Range:                                               43 – 58.8V

    Charging Specs:

    • Suggested Charge Voltage:     58.8V
    • Max Charge Current:                90A

    Temperature Parameters:

    • Charge Temp Range (°C):                      0°C – 55°C
    • Discharge Temp Range (°C):               -30°C – 55°C
    • Optimal Discharge Temp. Range:        15°C – 35°C
    • Storage Temp:                                        -20°C –  35°C (Max 6 Months)

    48V KONG 12kWh Powerwall Dimensions:

    • Weight:    372 (LBS)
    • Length:    25.5 (in)
    • Width:      15 (in)
    • Height:     46.5 (in)

    Safety Features:

    • BMS (Battery Management System) 
    • Over Voltage, Under Voltage, Over-Current
    • (Thermal Management System), Breaker (300A)

    Max battery Connections:

    • Series:       N/A
    • Parallel:      (YES)       Cap x (8)

    Warranty & Guarantee:

    • Made in the USA
    • 10-Year Warranty!
    • Lifetime Customer Support (Phone, Live Chat Or Email)

    48V KONG 15kWh - SPECS:

    •  LED Display
    •  Compact Modular Design
    •  High Temp Operating Range
    •  Best Power Density/Pack Size
    •  Best Aluminum Mosfet Design
    •  3000 A Short Circuit Protection
    •  High Cold-Cranking Amps (400A)

    Warranty & Guarantee:

    • Made in the USA
    • 10-Year Warranty!
    • Lifetime Customer Support (Phone, Live Chat Or Email)

    48V KONG 15kWh Powerwall Specs:

    • Chemistry:           LiFePO4 (New)
    • Configuration:     16S 1P
    • Voltage:                48V
    • Ah Capacity:        300Ah
    • kWh Capacity:     15kWh
    • Wh Capacity:       15,000Wh

    Performance Specs:

    • Max Continuous Discharge Current:          150A
    • Max Continuous Power:                               7500W
    • Max Discharge Peak Current:                      350A (6 Seconds)
    • Voltage Range:                                               43 – 58.8V

    Charging Specs:

    • Suggested Charge Voltage:     58.8V
    • Max Charge Current:                90A

    Temperature Parameters:

    • Charge Temp Range (°C):                      0°C – 55°C
    • Discharge Temp Range (°C):               -30°C – 55°C
    • Optimal Discharge Temp. Range:        15°C – 35°C
    • Storage Temp:                                        -20°C –  35°C (Max 6 Months)

    48V KONG 15kWh Powerwall Dimensions:

    • Weight:    450 (LBS)
    • Length:    25.5 (in)
    • Width:      15 (in)
    • Height:     46.5 (in)

    Safety Features:

    • BMS (Battery Management System) 
    • Over Voltage, Under Voltage, Over-Current
    • (Thermal Management System), Breaker (300A)

    Max battery Connections:

    • Series:       N/A
    • Parallel:      (YES)       Cap x (8)

    Warranty & Guarantee:

    • Made in the USA
    • 10-Year Warranty!
    • Lifetime Customer Support (Phone, Live Chat Or Email)

    48V KONG 15kWh

    • SKU: FKONG-48190-G1
    • Voltage: 48V
    • Chemistry: LiFePO4
    • Charging Voltage Range: 55.6 - 58.0
    • Max Charge Voltage: 58.8V
    • Operating Voltage Range: 43 - 58.8V
    • kWh Capacity: 19kWh
    • Ah Capacity: 372Ah
    • Cell Configuration: 16S
    • Max Continuous Discharge Current Amps: 150
    • Max Continuous Power Watts: 7500
    • Max Discharge Peak Current Amps: 350 (6 Seconds)
    • Max Charge Current Amps: 90
    • Charge Temp Range (°C): 0°C (32°F) / 55°C (131°F)
    • Discharge Temp Range (°C): -30°C (-22°F) / 55°C (131°F)
    • Optimal Discharge Temp Range: 15°C (59°F) / 35°C (95°F)
    • Storage Temp: -5°C (23°F) / 35°C (95°F) (Max 6 Months)
    • Weight: 600 (LBS)
    • Length Inches: 25.5
    • Width Inches: 15
    • Height Inches: 46.5
    • Safety Features: BMS (Battery Management System) Over Voltage, Under Voltage, Over-Current (Thermal Management System), Safety Breaker (250A)
    • Parallel: Up To (8) Parallel

      48V Kong Elite - 19KWH - SPECS:

      • Chemistry: LiFePO4
      • Voltage: 48V
      • kWh: 19kWh
      • Amp Hours: 372 Ah
      • Operating Voltage Range: 43V - 58.8V
      • Charging Voltage Range: 55.6V - 58V
      • Max Charging Voltage: 58.8V (Warning: Do not exceed charging voltage
      • Cell Configuration: 16S
      • Max Continuous Discharge: 150A
      • Max Continuous Power: 7500W
      • Max Peak Discharge : 350A (Over 6 Seconds)
      • Max Charge Current: 90A
      • Charge Temp Range (°C): 0°C - 55°C
      • Discharge Temp Range (°C): -30°C / 55°C
      • Optimal Discharge Temp Range: 15°C / 35°C
      • Storage Temp: -5°C / 35°C (Max 6 Months)
      • Weight: 600 (LBS)
      • Length Inches: 25.5
      • Width Inches: 15
      • Height Inches: 46.5

      Warranty & Guarantee:

      • Made in the USA
      • 10-Year Warranty!
      • Lifetime Customer Support (Phone, Live Chat Or Email)

        Still have questions? Don't hesitate to reach out or give us a call today at 877-242-2792

        Shipping Times Estimated delivery time to your door for in-stock orders placed today is 5-10 business days.

        Shipments & Lead Times: We process all orders within 72 hours. From there, we do our best to ship as quickly as possible. Shipping times vary depending on the product and size of your order. We will send you your tracking information to the e-mail and/or phone number on file.

        With the incredible demand for solar products, our average delivery time to your door is between 7-10 business days from date of order. However, for some products, shipping can be as fast as 3-5 business days to your door. Please check specific product pages for the most accurate information.

        *Please Note* - As a large retailer, our stock levels are healthy and shipments are moving quickly. If you place an order for something that is not in stock, or is on backorder, our team will reach out to you within 24-72 hours of placing your order to determine how you would like to move forward.

        If you have any questions, give us a call at 877-242-2792 or reach out via email / live chat.

        average rating 4.9 out of 5
        Based on 37 reviews
        • 5 Stars
          35 Reviews
        • 4 Stars
          2 Reviews
        • 3 Stars
          0 Reviews
        • 2 Stars
          0 Reviews
        • 1 Star
          0 Reviews
        100% of reviewers would recommend this product to a friend
        Quality
        Rated 4 out of 5
        Easy to Use
        Rated 4 out of 5
        37 Reviews
        Reviewed by Robert C.
        Verified Buyer
        I recommend this product
        Age Range
        65+
        Rated 5 out of 5
        Review posted

        Mammoth Battery is a beast ...

        Of course the Mammoth battery is a beast and it's amazing. But the gem here is the Shop Solar Kits support team. You're getting multiple decades of knowledge wrapped into a single offering. I was having a wiring problem and they not only sent me a diagram but also built me a Combiner Box ... who does that anymore? That's 'old school' / 'amazing' support - wrapped around an innovative product suite. Simple AMAZING ... got job Shop Solar Kits!!

        Loading...
        Quality
        Rated 5 out of 5
        Easy to Use
        Rated 5 out of 5
        Was this helpful?
        Reviewed by Rick D.
        Verified Buyer
        I recommend this product
        Age Range
        45 - 54
        Rated 5 out of 5
        Review posted

        Really Does the trick!

        This unit is great. Never need to worry about it. And super reliable.

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        Quality
        Rated 5 out of 5
        Easy to Use
        Rated 5 out of 5
        Was this helpful?
        Reviewed by Andrew N.
        Verified Buyer
        Reviewing
        4 x Mammoth [PRO]'s - [94kWh Battery Bank] | 48V | 10-Year Warranty | Stack up to 8 Units
        I recommend this product
        Age Range
        35 - 44
        Rated 5 out of 5
        Review posted

        As Described

        Works as advertised. Haven’t hooked up the solar panels to it yet as it is for emergency use.

        Loading...
        Quality
        Rated 5 out of 5
        Easy to Use
        Rated 5 out of 5
        Was this helpful?
        Reviewed by Rex L.
        Verified Buyer
        I recommend this product
        Age Range
        45 - 54
        Rated 5 out of 5
        Review posted

        Using 2 to power my house

        I would prefer a third, but these two do everything I want. Only about 20 cycles in, but going strong. Easy to install and the bms is all internal and very simple. It does require attention, as they don't drain equally.

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        Quality
        Rated 5 out of 5
        Easy to Use
        Rated 5 out of 5
        Was this helpful?

        Product Description

        Our 48V KONG Lithium Battery Banks are designed around NEW LiFePO4 cells complete with a BMS & 300A fuse. This battery is perfect as a drop-in replacement for lead-acid batteries in your off-grid home, energy storage system, etc. providing you with more capacity, shorter charge times & longer life!

        Choose From 2 Capacity Options: 12KWH / 15KWH / 19KWH

        This powerful lithium battery is by far one of the best and most cost-efficient powerwall batteries in its class. Capable of being connected in parallel with up to 8 total units, you can easily build a massive 48V battery bank with just two or three of these units. 

        The 48V KONG comes with pre-installed Anderson connections making it ready to go for quick installation to any inverter, charge controller or bus bar. With the SB175 Anderson to ring terminal cable already included, you'll be up and running in no time!

        Includes Comprehensive 10-Year Warranty & Guarantee:

        • Made in the USA
        • 10-Year Warranty!
        • Lifetime Customer Support (Phone, Live Chat Or Email)

        48V KONG - 12KWH - SPECS

        •  LED Display
        •  Compact Modular Design
        •  High Temp Operating Range
        •  Best Power Density/Pack Size
        •  Best Aluminum Mosfet Design
        •  3000 A Short Circuit Protection
        •  High Cold-Cranking Amps (400A)

        Specs:

          • Chemistry:           LiFePO4 (New)
          • Configuration:     16S 1P
          • Voltage:                48V
          • Ah Capacity:        233Ah
          • kWh Capacity:     12kWh
          • Wh Capacity:       12,000Wh

          Performance Specs:

          • Max Continuous Discharge Current:          150A
          • Max Continuous Power:                               7500W
          • Max Discharge Peak Current:                      350A (6 Seconds)
          • Voltage Range:                                               43 – 58.8V

          Charging Specs:

          • Suggested Charge Voltage:     58.8V
          • Max Charge Current:                90A

          Temperature Parameters:

          • Charge Temp Range (°C):                      0°C – 55°C
          • Discharge Temp Range (°C):               -30°C – 55°C
          • Optimal Discharge Temp. Range:        15°C – 35°C
          • Storage Temp:                                        -20°C –  35°C (Max 6 Months)

          48V KONG 12kWh Powerwall Dimensions:

          • Weight:    372 (LBS)
          • Length:    25.5 (in)
          • Width:      15 (in)
          • Height:     46.5 (in)

          Safety Features:

          • BMS (Battery Management System) 
          • Over Voltage, Under Voltage, Over-Current
          • (Thermal Management System), Breaker (300A)

          Max battery Connections:

          • Series:       N/A
          • Parallel:      (YES)       Cap x (8)

          Warranty & Guarantee:

          • Made in the USA
          • 10-Year Warranty!
          • Lifetime Customer Support (Phone, Live Chat Or Email)

          48V KONG 15kWh - SPECS:

          •  LED Display
          •  Compact Modular Design
          •  High Temp Operating Range
          •  Best Power Density/Pack Size
          •  Best Aluminum Mosfet Design
          •  3000 A Short Circuit Protection
          •  High Cold-Cranking Amps (400A)

          Warranty & Guarantee:

          • Made in the USA
          • 10-Year Warranty!
          • Lifetime Customer Support (Phone, Live Chat Or Email)

          48V KONG 15kWh Powerwall Specs:

          • Chemistry:           LiFePO4 (New)
          • Configuration:     16S 1P
          • Voltage:                48V
          • Ah Capacity:        300Ah
          • kWh Capacity:     15kWh
          • Wh Capacity:       15,000Wh

          Performance Specs:

          • Max Continuous Discharge Current:          150A
          • Max Continuous Power:                               7500W
          • Max Discharge Peak Current:                      350A (6 Seconds)
          • Voltage Range:                                               43 – 58.8V

          Charging Specs:

          • Suggested Charge Voltage:     58.8V
          • Max Charge Current:                90A

          Temperature Parameters:

          • Charge Temp Range (°C):                      0°C – 55°C
          • Discharge Temp Range (°C):               -30°C – 55°C
          • Optimal Discharge Temp. Range:        15°C – 35°C
          • Storage Temp:                                        -20°C –  35°C (Max 6 Months)

          48V KONG 15kWh Powerwall Dimensions:

          • Weight:    450 (LBS)
          • Length:    25.5 (in)
          • Width:      15 (in)
          • Height:     46.5 (in)

          Safety Features:

          • BMS (Battery Management System) 
          • Over Voltage, Under Voltage, Over-Current
          • (Thermal Management System), Breaker (300A)

          Max battery Connections:

          • Series:       N/A
          • Parallel:      (YES)       Cap x (8)

          Warranty & Guarantee:

          • Made in the USA
          • 10-Year Warranty!
          • Lifetime Customer Support (Phone, Live Chat Or Email)

          48V KONG 15kWh

          • SKU: FKONG-48190-G1
          • Voltage: 48V
          • Chemistry: LiFePO4
          • Charging Voltage Range: 55.6 - 58.0
          • Max Charge Voltage: 58.8V
          • Operating Voltage Range: 43 - 58.8V
          • kWh Capacity: 19kWh
          • Ah Capacity: 372Ah
          • Cell Configuration: 16S
          • Max Continuous Discharge Current Amps: 150
          • Max Continuous Power Watts: 7500
          • Max Discharge Peak Current Amps: 350 (6 Seconds)
          • Max Charge Current Amps: 90
          • Charge Temp Range (°C): 0°C (32°F) / 55°C (131°F)
          • Discharge Temp Range (°C): -30°C (-22°F) / 55°C (131°F)
          • Optimal Discharge Temp Range: 15°C (59°F) / 35°C (95°F)
          • Storage Temp: -5°C (23°F) / 35°C (95°F) (Max 6 Months)
          • Weight: 600 (LBS)
          • Length Inches: 25.5
          • Width Inches: 15
          • Height Inches: 46.5
          • Safety Features: BMS (Battery Management System) Over Voltage, Under Voltage, Over-Current (Thermal Management System), Safety Breaker (250A)
          • Parallel: Up To (8) Parallel

            48V Kong Elite - 19KWH - SPECS:

            • Chemistry: LiFePO4
            • Voltage: 48V
            • kWh: 19kWh
            • Amp Hours: 372 Ah
            • Operating Voltage Range: 43V - 58.8V
            • Charging Voltage Range: 55.6V - 58V
            • Max Charging Voltage: 58.8V (Warning: Do not exceed charging voltage
            • Cell Configuration: 16S
            • Max Continuous Discharge: 150A
            • Max Continuous Power: 7500W
            • Max Peak Discharge : 350A (Over 6 Seconds)
            • Max Charge Current: 90A
            • Charge Temp Range (°C): 0°C - 55°C
            • Discharge Temp Range (°C): -30°C / 55°C
            • Optimal Discharge Temp Range: 15°C / 35°C
            • Storage Temp: -5°C / 35°C (Max 6 Months)
            • Weight: 600 (LBS)
            • Length Inches: 25.5
            • Width Inches: 15
            • Height Inches: 46.5

            Warranty & Guarantee:

            • Made in the USA
            • 10-Year Warranty!
            • Lifetime Customer Support (Phone, Live Chat Or Email)

              Still have questions? Don't hesitate to reach out or give us a call today at 877-242-2792

              Shipping & Delivery

              Shipping Times Estimated delivery time to your door for in-stock orders placed today is 5-10 business days.

              Shipments & Lead Times: We process all orders within 72 hours. From there, we do our best to ship as quickly as possible. Shipping times vary depending on the product and size of your order. We will send you your tracking information to the e-mail and/or phone number on file.

              With the incredible demand for solar products, our average delivery time to your door is between 7-10 business days from date of order. However, for some products, shipping can be as fast as 3-5 business days to your door. Please check specific product pages for the most accurate information.

              *Please Note* - As a large retailer, our stock levels are healthy and shipments are moving quickly. If you place an order for something that is not in stock, or is on backorder, our team will reach out to you within 24-72 hours of placing your order to determine how you would like to move forward.

              If you have any questions, give us a call at 877-242-2792 or reach out via email / live chat.

              Customer Reviews

              average rating 4.9 out of 5
              Based on 37 reviews
              • 5 Stars
                35 Reviews
              • 4 Stars
                2 Reviews
              • 3 Stars
                0 Reviews
              • 2 Stars
                0 Reviews
              • 1 Star
                0 Reviews
              100% of reviewers would recommend this product to a friend
              Quality
              Rated 4 out of 5
              Easy to Use
              Rated 4 out of 5
              37 Reviews
              Reviewed by Robert C.
              Verified Buyer
              I recommend this product
              Age Range
              65+
              Rated 5 out of 5
              Review posted

              Mammoth Battery is a beast ...

              Of course the Mammoth battery is a beast and it's amazing. But the gem here is the Shop Solar Kits support team. You're getting multiple decades of knowledge wrapped into a single offering. I was having a wiring problem and they not only sent me a diagram but also built me a Combiner Box ... who does that anymore? That's 'old school' / 'amazing' support - wrapped around an innovative product suite. Simple AMAZING ... got job Shop Solar Kits!!

              Loading...
              Quality
              Rated 5 out of 5
              Easy to Use
              Rated 5 out of 5
              Was this helpful?
              Reviewed by Rick D.
              Verified Buyer
              I recommend this product
              Age Range
              45 - 54
              Rated 5 out of 5
              Review posted

              Really Does the trick!

              This unit is great. Never need to worry about it. And super reliable.

              Loading...
              Quality
              Rated 5 out of 5
              Easy to Use
              Rated 5 out of 5
              Was this helpful?
              Reviewed by Andrew N.
              Verified Buyer
              Reviewing
              4 x Mammoth [PRO]'s - [94kWh Battery Bank] | 48V | 10-Year Warranty | Stack up to 8 Units
              I recommend this product
              Age Range
              35 - 44
              Rated 5 out of 5
              Review posted

              As Described

              Works as advertised. Haven’t hooked up the solar panels to it yet as it is for emergency use.

              Loading...
              Quality
              Rated 5 out of 5
              Easy to Use
              Rated 5 out of 5
              Was this helpful?
              Reviewed by Rex L.
              Verified Buyer
              I recommend this product
              Age Range
              45 - 54
              Rated 5 out of 5
              Review posted

              Using 2 to power my house

              I would prefer a third, but these two do everything I want. Only about 20 cycles in, but going strong. Easy to install and the bms is all internal and very simple. It does require attention, as they don't drain equally.

              Loading...
              Quality
              Rated 5 out of 5
              Easy to Use
              Rated 5 out of 5
              Was this helpful?

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