BigBattery 48V [HSKY] 21.2KwH Powerwall Kit - LiFePO4 - 412Ah - 21.2kW - ShopSolar.com
Skip to content
BigBattery 48V [HSKY] 21.2KwH Powerwall Kit - LiFePO4 - 412Ah - 21.2kWh - ShopSolar.com

BigBattery 48V [HSKY] 21.2KwH Powerwall Kit - LiFePO4 - 412Ah - 21.2kWh

by BigBattery
SKU HSKY-48V-21.2KWH

people are currently viewing this product
$10,360.00
$11,999.00
Translation missing: en.product_price.item.price.range_html
$11,999.00
from $10,360.00
$10,360.00
You Saved: $1,639.00 14%

Sold out

✔40,000+ Happy Customers!

✔We Beat All Competitors Prices.

✔Includes Lifetime Customer Support!

✔Fast & Reliable Shipping - While Supplies Last.
Support Agent

Have a question? We're here to help.

Friendly Phone Support:  877-242-2792

Instant Live Chat:  Chat Now

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 4 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 4 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 4 in this kit):

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

    Temperature Parameters (Each Battery x 4 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 4 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)

      What is the Shop Solar Kits returns policy?

      Returns are free in the first 30 days with no restocking or processing fees, although the customer must pay for the return shipping costs. See our complete return policy on our Shipping, Deliver, and Returns page.

      What’s covered by the Shop Solar Kits returns policy?

      Our returns policy covers all purchases made through Shop Solar Kits. For warranty issues, as authorized distributors, we honor the full manufacturer warranty of ALL the brands on our website. See our complete returns and warranty policies on our Shipping, Deliver, and Returns page.

      How long will it take to receive my Shop Solar Kits order?

      All orders are processed within 72 hours and you can expect delivery within 5 to 10 business days. You will receive access to our customer portal after ordering, where it is easy to track all your shipments. See our Shipping, Delivery and Returns page for more details.

      What are the financing and payment options at Shop Solar Kits?

      We offer several ways to pay to make getting your solar kit simple:

      • Credit Card: if the purchase is greater than your card’s limit, you can split the cost onto multiple cards as well as Paypal, financing through Affirm, and ACH/bank transfer
      • You can arrange financing during the checkout process, see our Financing page for more details

      How does the Shop Solar Kits Lifetime Support work?

      Our legendary lifetime customer support has helped make us the #1 solar kit retailer. 

      We have a dedicated team of solar professionals standing by to help you navigate the world of solar with ease. From selecting the perfect solar kit to installation and beyond, we provide support and expertise at every step of the journey.

      If you need help with ordering, shipping, troubleshooting, expanding your system, warranty issues, or anything else you have questions about for as long as you own your Shop Solar Kits equipment, we’ve got you covered: we’re always only a phone call or email away.

      Simplified Solar Solutions

      Simplified Solar Solutions

      Our carefully curated solar kits combine the best components to create an ideal solution for your individual power needs. So whether you need to get off the grid, to save on your electric bill, for emergency backup power, or to fuel your next adventure - we eliminate the need for a designer or custom solution, and pass those savings on to you without compromising on performance.

      Best Components, Lowest Prices

      Best Components, Lowest Prices

      We cut out the bloat of traditional solar companies and pass those savings off to you. Plus, we provide free shipping on all solar kits and lifetime customer service on everything we sell.

      Expert Guidance

      Expert Guidance

      Our team of solar professionals is here to help you navigate the world of solar with ease. From selecting the perfect solar kit to installation and beyond, we provide support and expertise at every step of the journey.

      We’re people just like you

      We’re people just like you

      We’re not corporate and neither are our customers. We’re just a group of 50+ solar enthusiasts who are passionate about providing an honest, no-BS way for anyone, anywhere to improve their lives and the world around them with solar power.

      Trusted Solar Authority

      Trusted Solar Authority

      With over 30,000 solar kits sold, 2,500+ positive reviews, and years of experience in the industry, we’re proud to say we’re America’s #1 solar kit retailer. So you can trust us to provide you with top-notch products and legendary customer service at every step of the way.

      Write a Review
      average rating 5.0 out of 5
      Based on 29 reviews
      • 5 Stars
        28 Reviews
      • 4 Stars
        1 Review
      • 3 Stars
        0 Reviews
      • 2 Stars
        0 Reviews
      • 1 Star
        0 Reviews
      100% of reviewers would recommend this product to a friend
      Quality
      Rated 5 out of 5
      Easy to Use
      Rated 5 out of 5
      Customer photos and videos
      Open user-uploaded photo and review in a modal
      Open user-uploaded video and review in a modal       Open user-uploaded photo and review in a modal Open user-uploaded photo and review in a modal Open user-uploaded photo and review in a modal Open user-uploaded photo and review in a modal
      29 Reviews
      Reviewed by Rick D.
      Verified Buyer
      BigBattery 48V KONG [Choose Capacity: 12KWH, 15KWH or 19KWH] 48V Lithium Battery Bank | Stack up to 8 x Units | 10-Year Warranty
      Reviewing
      BigBattery 48V KONG [Choose Capacity: 12KWH, 15KWH or 19KWH] 48V Lithium Battery Bank | Stack up to 8 x Units | 10-Year Warranty
      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 Jason P.
      Verified Buyer
      BigBattery 48V KONG [Choose Capacity: 12KWH, 15KWH or 19KWH] 48V Lithium Battery Bank | Stack up to 8 x Units | 10-Year Warranty
      Reviewing
      BigBattery 48V KONG [Choose Capacity: 12KWH, 15KWH or 19KWH] 48V Lithium Battery Bank | Stack up to 8 x Units | 10-Year Warranty
      I recommend this product
      Age Range
      55 - 64
      Rated 5 out of 5
      Review posted

      Perfect!

      Shopsolarkits set me up with a customized WHK3. We doubled the panels, doubled the inverters and doubled the batteries! The only parts I’m waiting on is stuff I didn’t purchase thru SSK! Love the fast response time to questions after the sale.

      Loading...
      Quality
      Rated 5 out of 5
      Easy to Use
      Rated 5 out of 5
      Open Image by Jason P. in a modal
      Was this helpful?
      Reviewed by jordan l.
      Verified Buyer
      BigBattery 5.3KwH 48V [HSKY] Powerwall LiFePO4 | 5,300wH / 103AH 48V Lithium Solar Battery
      Reviewing
      BigBattery 5.3KwH 48V [HSKY] Powerwall LiFePO4 | 5,300wH / 103AH 48V Lithium Solar Battery
      I recommend this product
      Age Range
      25 - 34
      Rated 5 out of 5
      Review posted

      Great for tiny house

      Great for our tiny house! We have had two 5.3 kw Big battery packs powering our tiny house trailer for about six months. We have a gas hot water heater and stove so so our main power draws besides miscellaneous items plugged in are the Apartment sized fridge, a chest freezer, tv, and air conditioning. We weren’t sure if we would be able to run the AC but as long as we turn it off with still about two hours of daylight on our panels are batteries end fully charged. It has been a hot summer with days around 95 to 105° so this has been a welcome surprise. If we have used our batteries too low for the night, a quick half hour running of the generator tops them off. They were easy to install and are neat and compact.

      Loading...
      Quality
      Rated 5 out of 5
      Easy to Use
      Rated 5 out of 5
      Open Image by jordan l. in a modal
      Open Video by jordan l. in a modal
      Was this helpful?
      Reviewed by Mark S.
      Verified Buyer
      BigBattery 6kWh 24V [HUSKY ELITE] - LiFePO4 - 234Ah Lithium Battery
      Reviewing
      BigBattery 6kWh 24V [HUSKY ELITE] - LiFePO4 - 234Ah Lithium Battery
      I recommend this product
      Age Range
      55 - 64
      Rated 5 out of 5
      Review posted

      HSKY elite

      Works great with my MPP LV 2424

      Loading...
      Quality
      Rated 5 out of 5
      Easy to Use
      Rated 5 out of 5
      Open Image by Mark S. in a modal
      Was this helpful?
      Reviewed by Jon R.
      Verified Buyer
      BigBattery 6kWh 24V [HUSKY ELITE] - LiFePO4 - 234Ah Lithium Battery
      Reviewing
      BigBattery 6kWh 24V [HUSKY ELITE] - LiFePO4 - 234Ah Lithium Battery
      I recommend this product
      Age Range
      45 - 54
      Rated 5 out of 5
      Review posted

      Powerful battery for size

      Have 2 of these and they are very powerful for size and very well built and are very simple to use

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