Big Battery 12V Owl Max 2 LiFePO4 228Ah 3.018kWh
Big Battery 12V Owl Max 2 LiFePO4 228Ah 3.018kWh
Big Battery 12V Owl Max 2 LiFePO4 228Ah 3.018kWh
Big Battery 12V Owl Max 2 LiFePO4 228Ah 3.018kWh
Big Battery 12V Owl Max 2 LiFePO4 228Ah 3.018kWh

Big Battery 12V Owl Max 2 LiFePO4 228Ah 3.018kWh


Regular price $1,850.00 Sale price$1,290.00 Save $560.00

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  • Estimated arrival 4-10 days after placing the order. Please call or message the chat for precise ETAs
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Big Battery 12V Owl Max 2 LiFePO4 228Ah 3.018kWh

TAKING IT TO THE MAX, AGAIN! BigBattery’s 12V 3 kWh LiFePO4 OWL Max 2 battery takes all the incredible features you loved from our flagship OWL and OWL Max and adds even more capacity.

On top of brand new LFP cells, our advanced BMS, and 300A Fuse, the OWL Max 2 comes with an additional 418 Wh and 26 Ah of capacity, a sleek stainless steel casing, and an internal fire extinguisher. When you upgrade your RV’s power system with the OWL Max 2, you can cut the weight and space used by your battery bank in half. You’ll be able to provide more than twice the power in the same amount of space while lasting 4 times longer than the lead acid equivalent, all with ZERO maintenance!

With a compact, portable design and the ability to connect several units in parallel for a huge power system, this truly is one of our most versatile solutions. So if you’re looking for a battery that can not only bring you the power you’re looking for, but look good doing it, the 12V OWL Max 2 is the battery for you.


Designed for 12V Applications

  • Lead Acid Replacement
  • Intense heat and cold
  • Emergency Power
  • Off-grid power
  • Solar Systems
  • Mobile Power
  • Camper Vans
  • RVs

Spec Sheet Download:  Click Here


 SKU: A-OWL-12030-G2
System Voltage: 12V
Nominal Voltage: 12.8V
Chemistry: LiFePO4
kWh Capacity: 3kWh
Ah Capacity: 228Ah
Charging Voltage Range: 13.9 - 14.5V
Max Charge Voltage: 14.7V
Operating Voltage Range: 11.8 – 14.6V
Suggested Low Voltage Cutoff: 11.8 – 12.7V
BMS Cutoff Range: 10.5 - 11.8V
Cell Configuration: 4S
Max Continuous Discharge Current: 175A
Max Continuous Power: 2240W
Max Discharge Peak Current: 350A (6 Seconds)
Max Charge Current: 175A
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: 47 lb (21.3 kg)
Depth: 10.1 in (25.7 cm)
Width: 7.2 in (18.3 cm)
Height: 12 in (30.5 cm)
Safety Features: Fuse (300A) & Battery Management System
(Over/Under Voltage, Over Current, & Over/Under Temperature Protections)
Max Connections: Up To (8) Parallel



Double-Check Your Address

To ensure that your package is properly delivered and that you receive your package within the time frames we advertise, please make sure that your address is correctly entered and includes all relevant and/or required information. The use of correct abbreviations, street numbers, building or apartment numbers, and route information (if applicable) is critical for ensuring timely delivery. We do not take responsibility for lost, misplaced, or incorrectly delivered shipments if the address information provided is incorrect or incorrectly entered at the time of purchase.

Per International Shipments

For international shipments, we do not ship to areas outside of the continental United States. If buyers wish to purchase our products in the USA for use in another country, they are responsible for arranging their own shipping from our facility in Chatsworth, CA to their end destination where the goods will be imported on behalf of the consignee/buyer. The consignee will pay the taxes & duties in addition with the purchase price of the goods.

Processing Time

After your payment is authorized and verified, standard online orders will take an estimated 7 – 14 business days to process and ship from our US facilities. When picked up by our logistics providers, these orders are subject to processing time(s) from said logistics provider that depend on a number of factors. Standard domestic orders in the continental United States are projected to take 7 – 14 business days to deliver. Depending on your geographic location in the United States, you should expect to receive your purchase at your provided address within 14 – 28 business days, excluding holidays. For more information, please check your email and use the tracking number provided upon release from our US-based manufacturing facility.

BigBattery rates and prioritizes logistics carriers with the highest success of delivering our goods safely and on time. If you have any issues with our logistics providers, please let us know by emailing us at to help us eliminate bad logistics carriers for future orders. As we strive to offer the best service, we appreciate this feedback to perfect our logistics process.

Shipping Rates & Timelines

Please note that orders may take 7 – 14 business days from the date that it is picked up from our US- based manufacturing facility, NOT from the date that it is placed. This will depend on the shipping method selected at checkout and final geographic destination of the order. When your order has been shipped from our facility, you will receive an email with tracking information. Alternative carriers may be selected at our sole discretion to meet shipping requirements.

Shipping Fees

Shipping fees are non-refundable. If you refuse any shipments from BigBattery, Inc., you will be held responsible for the original shipping charges, plus the costs associated for reverse logistics. This amount will be deducted from any credit issued.

Delivery Claims

If you are experiencing a non-delivery or your tracking information states that your package was delivered by the carrier but you have not received it; you MUST contact us within 10 days to file a claim. We will assist you in working with the carrier to complete the claims process and track down the order. Please note that claims can take up to 30 days to complete (depending on the shipping carrier used). BigBattery does not hold or accept responsibility for packages that have been reported as delivered by the carrier. We do not issue refunds or credits for packages that the carrier confirms as being delivered.

Out Of Stock Items

If your order includes multiple items and one (or more) of the items are out of stock, we will attempt to notify you, then ship the rest of your order, issuing a refund to your original form of payment for the item(s) not in stock.

Reserved Rights Regarding Shipping

While we will make every effort to accommodate your shipping and billing preferences, in order to protect our customers, BigBattery reserves the right to require customers to use a common shipping and billing address in the event we are unable to process an order or verify a shipping address provided. Smart Nature Store reserves the right to solely define, limit, refuse, and/or cancel orders from
customers at any time due to:

  • An irregular or excessive returns history involving worn, altered, laundered, damaged, or missing items.
  • Potential fraudulent or criminal activity.

Warranty and Return

In the unlikely event you are having an issue with one of our batteries, we have developed a straightforward Warranty & Return Policy servicing all customers in the USA:

  • Real (10) Year Warranty
    All our batteries come with a 10-Year Full Repair/Replacement Warranty. If our batteries malfunction due to component or manufacturing error, the product will be repaired or replaced free of charge.
  • Full Lifetime Tech Support & Customer Service
    All batteries include a Free Lifetime Technical Support & Troubleshooting Service. If you have any questions or need any help, simply call us at 855-601-2444, Monday – Friday, or send us an email anytime at
  • Free Repair & Replacement
    All batteries are built to last a minimum of 10 years. We stand by the quality of our batteries. If any parts within our battery fail due to defects or manufacturing error within the next 10 years, we will fix or replace your battery free of charge. In addition, for the first year of the warranty we will even cover all shipping costs from/to your purchase address within the continental US.
  • Highest Quality Guarantee
    BigBattery utilizes Tier 1 cells to provide the highest quality lithium battery packs in the USA. Depending on the model, use case and environment, your battery is designed to last between 3,500 – 8,000 cycles when used as intended within our published battery specifications.
  • Covered Products
    This Warranty covers all battery packs from the “Date Of Purchase” from BigBattery for 10 years and all accessories included for 30 Days.
  • Automated Warranty Registration
    No warranty registration is needed. Warranties are automatically recorded via an internal customer database via serial number and QR code.
  • Product Manuals & Specification Sheets
    BigBattery provides a proprietary QR code on every battery. Scan this QR code with any phone to view the Product Manual and Product Spec Sheet for your specific battery model. Providing these documents to you in a digital format helps to protect our environment and provides you the most updated information on your product in real time.
  • Domestic Warranty Claim Support
    To start a warranty claim, please email us directly at to create a ticket. Include a written description of the problem and pictures if possible. Upon receipt, our Tech Support team will reach out to you within 24 – 48 hours to troubleshoot. If the battery has been purchased within a year if the issue being reported to BigBattery, you will be sent a Return Shipping Label at no cost. After the first year, you will have the option to pay for the shipping, or arrange your own shipping back to BigBattery. If the label is provided by BigBattery, please include a copy of this label in the return box or pallet when our 3rd party logistics provider arrives to pickup your return. All returns will be inspected prior to repair, replacement, or reimbursement, depending on the circumstances of return and availability of similar items. For detailed instructions, please review our Warranty Repair/Replacement Services section below.
  • Returning Accessories
    This Warranty includes a 30-Day replacement for all accessories (Anderson connectors, wiring, chargers, etc.) included with your battery. If product is not defective or damaged upon return, refunds will be offered based on the purchase price of the unit minus a 20% restocking fee.
  • Change Your Mind
    That’s OK! All our batteries come with a 30-Day money back guarantee. Returns will be subject to a 20% restocking fee. Call or email customer service for a free shipping return label.
  • Non-Transferable
    Our Warranty applies to the original owner. If you wish to transfer your Warranty to another party, you can do so within 30 days of your purchase by sending a Warranty Transfer Request to
  • Return Hazmat Fee
    Due to the shipping regulations of lithium batteries, please note that some battery returns may require special documentation and packaging, and these instances could encounter extra fees if a customer is attempting to return a battery not covered by our Repair and Replacement Policy.
  • Battery Abuse Disclaimer
    This warranty does not cover damages resulting from misuse, abuse, accidents, alterations, or improper charging/ installation of our product. Please scan the QR code on your battery and read the Manual prior to installation and charging. DIY modifications or damage due to gross negligence or abuse will void your Warranty.
  • Fraud Protection
    Repair, replacement, and refunds for your purchase will only be possible after your returned battery has been received and fully inspected at our facility.
  • Limitation of Damages
    In no event shall BigBattery, Inc. be liable for consequential damages due to breach of this Warranty.
  • Customer Satisfaction
    If buyers are not satisfied for any reason after speaking with Level 3 Tech Support and/or our Customer Service team, all original buyers may escalate dispute resolutions to our CTO for review. We aim to put our customers first, resolve any issues, and ensure that all customers are happy with their purchase from BigBattery.
Have a Question?

Talk to one of our trusted experts today! Our customer support team would love to answer any questions you might have. Call us if you want to place the order over the phone (855) 601-2444 or send us your inquiry via chat.