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MOVE LIKE THE MUSTANG! BigBattery’s 48V MUSTANG is our latest LiFePO4 solution for your vehicle. Whether you’re looking to equip your golf cart with a high-capacity power system, or outfit your RV or camper van with a battery that’ll keep you moving forward, the MUSTANG is your answer!
The MUSTANG is one of our most energy-dense models, packing 7kWh and 139Ah of capacity in a sleek, steel casing. This battery is built to maximize the capabilities of your power system, and was designed for efficient power delivery, with generous operating parameters, regardless of how far your adventures take you.
But that’s not all, the MUSTANG is equipped with state-of-the-art safety and reliability features, so you can hit the road worry-free. The MUSTANG utilizes Grade A Razor cells, the safest lithium cells on the market today, capable of being fully punctured without releasing fumes or catching fire.
But we didn’t stop there! This battery is also equipped with our proprietary Beyond BMS, an advanced battery management system with triple safety redundancy, including protections such as Short Circuit, Over Current, Over/Under Voltage, and Over/Under Temperature protections.
So if you’re looking to turn your vehicle into a lean, mean, lithium-powered machine, this battery will deliver. The MUSTANG is guaranteed to provide reliable, high-capacity power storage from the moment you head out, to the moment you get back. Shop the all-new 48V MUSTANG today!
10-Year Savings vs Lead Acid
The Weight and Space
Cycle Life
Safe & Reliable
|
• Golf Carts • Utility Carts • 48V UTVs & LSVs • Lead Acid Replacement • Class A, B, & C RVs • Camper Vans • Food Trucks • Semi-Truck APS • Commercial Vehicles • Emergency Backup |
SKU:AMSTG-48070-G1
System Voltage: 48V
Nominal Voltage: 51.2V
Chemistry: LiFePO4
kWh Capacity: 7kWh
Ah Capacity: 139Ah
Charging Voltage Range: 55.6- 58.0V
Max Charge Voltage: 58.8V
Operating Voltage Range: 47.2 - 58.8V
Suggested Low Voltage Cutoff: 47.2-50.8V
BMS Cutoff Range: 42 - 47V
Cell Configuration: 16S
Max Continuous Discharge Current: 120A
Max Continuous Power: 6000W
Max Discharge Peak Current: 300A (6 Seconds)
Max Charge Current: 45A
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: 146 lb (66.2 kg)
Depth: 11.6 in (29.5 cm)
Width: 39.9 in (101.4 cm)
Height: 4.4 in (11.2 cm)
Safety Features: Fuse (300A) & Battery Management System (Over/Under Voltage, Over Current, & Over/Under Temperature Protections)
Max Connections: Up To (8) Parallel
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.
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 sales@romeosolar.com 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 sales@romeosolar.com.
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.
10-Year Repair/Replacement Warranty Coverage Details: BigBattery, Inc. warrants the covered product to be free of all defects in material and workmanship for 10 years from the auto-registered date of purchase. This Warranty extends to the original buyer for the duration of 10 years.
All BigBattery batteries are designed to operate for a minimum of 10 years and require zero maintenance. Some BigBattery batteries can last up to 22 years depending on model, use case, and environmental variables.
BigBattery batteries are also guaranteed to hold a reasonable amount of capacity based on the time in service (see exclusion for details on limits). In the case of a diminished capacity claim, the customer has the option to return the battery to BigBattery for capacity testing. The battery will be fully bench tested to resolve the claim and a relevant full cycle test report will be provided to the customer. If the customer is deemed to be correct and the battery is diminished beyond the limits specified in the exclusion section, then the battery will be eligible for warranty resolution. The customer will not be responsible for the costs associated with testing regardless of the test results.
Within our 10-Year Warranty, BigBattery, Inc. will repair or replace, free of charge, any part proving defective in material or workmanship. All warranty repairs and service must be performed by an authorized BigBattery, Inc. technician, or at an authorized BigBattery, Inc. service facility (unless directed otherwise in writing by a BigBattery employee).
For the first year, the expenses related to returning and repairing a defective part assumed by BigBattery, Inc. within the Continental US include pickup, return shipping, repair, replacement and final shipping. This Warranty does not assume responsibility for disconnection, service interruption, or re-packing expenses per said return shipment. Customers with international warranty claims will need to cover the cost of shipping.
Warranty Exclusions
This warranty does not apply to any costs, repairs, or services for the following:
1.) On-site service calls from 3rd party.
2.) Damage resulting from misuse, abuse, accidents, alterations, use other than intended application, collision, dropping, or improper installation.
3.) Product was used out of specification, or undersized for the application.
4.) Environmental damage, including caustic substances, salty, or outdoor exposure unless the battery is specifically indicated to be for outdoor use on the Product Label or in the Specification Sheet or the Product Manual.
5.) Claims of diminished capacity of less than 12% in the first 5 years, or 25% from year 6 to the 10 year warranty period.
6.) Corrective work necessitated by repairs made by anyone other than a BigBattery, authorized service technician – if not previously advised by BigBattery Tech Support.
7.) Battery that has not been charged over a six month Batteries need to be charged regularly to maximize and maintain lifespan.
8.) Warranty will be void if battery is opened, disassembled, or improperly altered, unless explicitly directed by BigBattery for technical support.
Warranty Repair/Replacement Services
Contact BigBattery Tech Support, confirm the problem, and identify the solution with our team. If the battery needs to come back to BigBattery for repairs or parts replacement, Customer Service will offer to arrange to and from our repair facility.
The buyer is required to pack the product according to the directions provided by Customer Service. The buyer should carefully cover and pack the battery needing repair, preferably in the original packing materials, in the same format as previously delivered (box/pallet) together with a copy of the original purchase receipt. Please write descriptions and updated notes on the receipt to better assist Tech Support in processing your repair or replacement.
Return Packing Instructions
Customer must take pictures of the product(s) being returned prior to packing and email these pictures to sales@romeosolar.com
prior to returning. Based on your pictures, BigBattery will be able to hold the logistics provider responsible for any potential damages
that could occur when the product is in transit.
Please safely pack your returned battery. Logistics carriers do NOT accept liability for unsafely packed batteries during transit.
To eliminate damage in transit, please use the original box and foam inserts provided. If the original packing is not available,
please pack your product in the same safe & secure format in which it was received via box/pallet for safe delivery to our repair center.
BigBattery assumes full responsibility to return your repaired and/or replaced batteries back to you.
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.
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 from BigBattery.com 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.
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. BigBattery 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.
BigBattery reserves the right to refuse service to any customer or entity, due to similar actions as noted above.
BigBattery offers free recycling of all our lithium batteries!
Traditional battery recycling has not always been an easy process. People have often been forced to find a certified recycler and then pay for expensive shipping.
BigBattery seeks to remedy this problem.
Currently, BigBattery is the only US battery manufacturer that offers free recycling at the end-of-life of all our products. We are willing to help our customers ship
our products back to our facilities and will recycle them at no extra charge to our customers.
We maintain a Zero Landfill Policy and have partnered with certified recyclers to make sure these batteries don’t end up in landfills.
For questions, contact sales@romeosolar.com or call us at +1-240-877-4022.