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BigBattery 48V [HSKY] 15.9KwH Powerwall Kit - LiFePO4 - 309Ah - 15.9kWh

Rated 4.9 out of 5
Based on 37 reviews
Rated 4.9 out of 5
Based on 37 reviews
SKU: HSKY-48V-15.9KWH

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Friendly Phone Support: 877-242-2792
| Quick Quote | Mon-Fri 10am-6pm EST

Our 48V HSKY battery is made in the USA from Prismatic LiFeP04 (Lithium Iron Phosphate) Cells which gives it longer cell life!
With a 103Ah and 5.3kWh per battery this powerful 15.9kwh battery bank is by far one of the best and most cost-efficient batteries on the market!

Detailed Battery Specs (Each Battery x 3 in this kit):

  • Chemistry:           LiFePO4 (LFP)
  • Configuration:    16S1P
  • Voltage:               48V
  • Ah Capacity:       103Ah
  • kWh Capacity:    5.3kWh
  • Wh Capacity:      5300Wh

    Performance Specs (Each Battery x 3 in this kit):
    • Max Continuous Discharge Current:          130A
    • Max Continuous Power:                               6700W
    • Max Discharge Peak Current:                      350A (6 Seconds)
    • Voltage Range:                                               43 – 58.8V

    Charging Specs (Each Battery x 3 in this kit):

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

    Temperature Parameters ( Each Battery x 3 in this kit):

    • 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 –  55°C (Max 6 Months)

    Dimensions ( Each Battery x 3 in this kit):

    • Weight:    100 (LBS)
    • Length:    10.25 (in)
    • Width:      9.5 (in)
    • Height:     21.5 (in)

    Safety Features:

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

    Max Battery Connections:

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

      Features:

      • 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)
      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.

      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?

      Product Description

      Our 48V HSKY battery is made in the USA from Prismatic LiFeP04 (Lithium Iron Phosphate) Cells which gives it longer cell life!
      With a 103Ah and 5.3kWh per battery this powerful 15.9kwh battery bank is by far one of the best and most cost-efficient batteries on the market!

      Detailed Battery Specs (Each Battery x 3 in this kit):

      • Chemistry:           LiFePO4 (LFP)
      • Configuration:    16S1P
      • Voltage:               48V
      • Ah Capacity:       103Ah
      • kWh Capacity:    5.3kWh
      • Wh Capacity:      5300Wh

        Performance Specs (Each Battery x 3 in this kit):
        • Max Continuous Discharge Current:          130A
        • Max Continuous Power:                               6700W
        • Max Discharge Peak Current:                      350A (6 Seconds)
        • Voltage Range:                                               43 – 58.8V

        Charging Specs (Each Battery x 3 in this kit):

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

        Temperature Parameters ( Each Battery x 3 in this kit):

        • 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 –  55°C (Max 6 Months)

        Dimensions ( Each Battery x 3 in this kit):

        • Weight:    100 (LBS)
        • Length:    10.25 (in)
        • Width:      9.5 (in)
        • Height:     21.5 (in)

        Safety Features:

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

        Max Battery Connections:

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

          Features:

          • 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)

          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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