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BigBattery 12V RZBK- LiFePO4 - 138Ah - 1.76kWh


Regular price
Price: $890.00
Regular price
List Price: $1,020.00
Sale price
Price: $890.00
You save: $130.00 (13%)
$20 OFF OF ORDERS OVER $200 WITH CODE: SAVE20 and *Free Shipping | Coupon Code: SAVE20 | Ends:
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Order Confirmation:

As soon as you place your order, you will receive an order confirmation e-mail.  This means that we have received your order in our system and pre-authorized your credit card for the purchase.  As soon as we receive your order, we automatically reach out to our suppliers to confirm that it is in stock and available for immediate shipment.  If your item is on backorder or unavailable, we will void the pre-authorization and reach out to you via e-mail.  If your item(s) are available for immediate shipment (within 5-10 business days), we will process the charges and submit the order for shipment.


Order Shipment:

If your order is stock and we process the charges to your credit card, it will ship within five business days from the date of your order.  We will send you tracking information within 24 hours of your order leaving the warehouse to the e-mail address you provided when checking out.  If you do not receive tracking information from us within six business days of your order, feel free to follow up with us at

Please note: If you have products from different manufacturers in your order, the items may be shipped at different times with different tracking numbers. 


Free shipping exclusions:

All generators will qualify for free shipping. Accessories will have a shipping fee of $19.99



    Price Match Guarantee

    We work very hard to ensure that we offer the absolute best prices online.  If you find another online store that offers a lower price, then contact us within six months of your purchase date. Please let us know and we will refund your original payment for the difference.  We want you to feel confident that you are getting the absolute best price for the product you are ordering.  If you find that our own website has a lower price for the same item, that you have ordered within six months of your purchase date, we will refund the difference as well.

    To request your partial refund, simply e-mail us a link to the same product on our website, or on our competitors website within six months from the date of your order and we will process the credit accordingly.

    Our 100% Price Guarantee has some limitations:

    • You must purchase the item from our website before requesting your Price Match Guarantee
    • Promotions such as rebates and buy one, get one free offers are not eligible
    • The item must be in stock on the competitors website
    • The competitor must be an online store, they may not have a retail location
    • The website can not be a discounter or auction website (ie; eBay, overstock, etc..)
    • The competitor must be an Authorized Retailer of the product in question
    • The Price Match Guarantee includes the item price and the shipping charges, it excludes sales tax

    Estimated Arrival: Between Oct 03 and Oct 05. United States


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    BigBattery has developed the World's Thinnest Battery!!  The 12V 138Ah-1.76 kWh LiFePO4 (Lithium Iron Phosphate) RAZORBACK (RZBK) battery is the most versatile, thinnest and safest solution for your Van, RVs, APS systems, camping, portable battery storage and other 12V applications.


    At BigBattery, we pride ourselves on being energy innovators, and in only 1.5 inches of thickness, we’ve packed our advanced BMS, a 100A Breaker, and brand new LFP Razor cells. These cells are some of the safest lithium cells available today, capable of being fully punctured without releasing hazardous fumes or catching fire. When it comes to safety, the RZBK is unmatched.


    Look no further for safe, portable, and discreet power storage, the RZBK is your answer. One of the most power dense units we offer, the RZBK can be paralleled together up to 8 times for a robust power system that doesn’t have to eat up valuable space and weight in your RV, camper van, or semi-truck. Upgrade to the RZBK today!


    SKU: FRZBK-12017-G1
    Voltage: 12V
    Chemistry: LiFePO4
    Charging Voltage Range: 13.9 - 14.5
    Max Charge Voltage: 14.7V
    Operating Voltage Range: 9.8 – 14.6V
    kWh Capacity: 1.76kWh
    Ah Capacity: 138Ah
    Cell Configuration: 4S
    Max Continuous Discharge Current Amps: 175
    Max Continuous Power Watts: 2240
    Max Discharge Peak Current Amps: 350 (6 Seconds)
    Max Charge Current Amps: 130
    Charge Temp Range (°C): -20°C (-4°F) / 65°C (149°F)
    Discharge Temp Range (°C): -35°C (-31°F) / 65°C (149°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: 48 (LBS)
    Length Inches: 10.25
    Width Inches: 47.5
    Height Inches: 1.5
    Safety Features: BMS (Battery Management System)
    Over Voltage, Under Voltage, Over-Current
    (Thermal Management System), Safety Breaker (100A)
    Parallel: Up To (8) Parallel

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