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WattCycle 36V 280Ah Mini LiFePO4 Battery Set

$1,31097 $1,79997
Free Shipping, taxes and discounts calculated at checkout.

Attention!

  • From Jan 10th 2025, the nominal capacity specification of 12V 300Ah MINI is 280Ah.
  • The label of 12V 300Ah MINI is still the 12V 300Ah MINI.
  • Over Current Protection:
  • Standard Version: 600A (1.2s)
  • Bluetooth Version: 210±10A (1s)
  • EVE LF280K-280Ah Grade A+ LiFePO4 Cells
  • (EVE: Top-tier battery cells brand)
  • Capacity: Rated: 3.2V 280Ah Tested: 310Ah
  • Nearly 12lbs lighter than 3 pack of 12V 100Ah
  • 42% smaller than 3 pack of 12V 100Ah
  • The same capacity with 3 pack of 12V 100Ah
  • Compact: 15.12 x 7.64 x 9.76 inches | 57.32lbs
  • Safe: Low-temperature cut-off protection
  • Durable: 5,000-15,000 deep discharge cycles
  • Reliable: Built-in 200A BMS | 2560W | 3584Wh
  • Scalable: Max. 4S4P, up to 57.34kWh
  • Waterproof: IP65
  • Certification: SDS / UN38.3 / FCC / CE / ROHS / UL

User Manual

Shipping Service

Thank you for choosing WattCycle for your LiFePO4 battery needs! We understand that getting your batteries quickly and safely is important to you. This policy outlines the shipping process for WattCycle orders.

Destinations:

  • We only ship orders to Continental U.S.
  • Currently we DO NOT ship to Alaska, Hawaii, and Puerto Rico.

Shipping Fee:

  • FREE shipping on all orders.
  • Shipping method: UPS Ground & Fedex.

Shipping time:

The time frame of an order delivery is divided into two parts:

  • Processing time: 1-2 business days
  • Shipping time: 2-5 business days
  • The shipping will delay for some objective or uncontrolled reasons. We will notice our customer ahead for delays.

Tracking Your Order:

  • Once your order ships, you will receive a confirmation email with a tracking number. You can use this tracking number to track the progress of your shipment on the carrier's website.

Disclaimer:

  • While we strive to meet the estimated delivery times provided, these are estimates and actual delivery times may vary depending on factors beyond our control, such as carrier delays or weather conditions.

Changes to This Policy:

  • We reserve the right to modify this Shipping Policy at any time. We will post any changes to this policy on our website.

We appreciate your support! If you have any questions about our shipping policy, please feel free to contact us at support.us@wattcycle.com.

Shenzhen Washi Energy Co., Ltd.

Room A503, Building A, Lankun Group, Baoxin Road, Dajingshan, Buxin Community, Xin'an Street, Baoan District, Shenzhen

Warranty Policy

Warranty Policy

At WattCycle, we stand behind the quality and performance of our batteries. We offer a comprehensive warranty to ensure your satisfaction with your purchase.

Please read the product manual carefully before installing and using the product, and use the battery correctly under the instructions of the manual.

Warranty Period

WattCycle warrants that the product will be free from defect in workmanship and material to the original consumer purchaser.
The warranty period starts on the date of purchase by the original consumer purchaser.

1. For the battery >50Ah, the warranty period is 5+2 years.(Extra 2 years warranty service is only for customers of official website.)
2. For the battery ≤50Ah, the warranty period is 3 years.
3. For the battery charger, the warranty period is 2 years.
4. For other battery chargers, the warranty period is 1 year.

Warranty Statement

Any defects in material, workmanship of your product will be covered after you provide any valid proof of purchase and information including but not limited to:

1. A purchased order number made through WattCycle official stores.
2. Sales invoice or order confirmation email that clearly shows the description of the product, its price, and sales channel.

Note: The limited warranty is restricted to the country of purchase. The warranty will be invalid on the items once they are taken or shipped to other countries.

Exclusions of Warranty 

1. Misused, abused, damaged by accident or damaged due to force majeure. (e.g. lightning strikes, tornadoes, hurricanes, etc.);
2. Unauthorized modification, repair, dis-assembly or operation not in accordance with the official instructions or manuals;
3. Lost, stolen or full refunded product;
4. Warranty period expired;
5. The battery model on the warranty certificate does not match the actual item;
6. Product wear and tear through the usage of time.

Procedures for Warranty Claims

We’ll assist to analyze the consumer’s problem within 24 hours, and help solve the problem, restore battery usage, and introduce the optimal use method.

If our product fails to work normally, the consumer assists us in completing all the battery testing, and both parties confirm that the product does have quality problems, we’ll send a new battery replacement to the defective battery after it has been returned to our US warehouse by the pre-paid label we prepared. And the defective battery will be checked and tested by our technical team to analyze the problem.

From the date of purchase and within 6 months, if our products have quality problems and cannot work normally, we can provide replacement or refund services; Within 7 months from the date of purchase to the end of the warranty, if our products have quality problems and cannot work normally, we can provide replacement services.

Any product(s) returned for valid warranty service will be shipped at the expense and risk of us. We will provide a pre-paid label to customers who need to return the products to the designated place at the specified time.

Batteries that have been serviced or replaced under their warranty period do not receive extended warranties. Instead, the serviced/replaced battery(-ies) will abide by the original warranty period issued when first purchased.

Changes to This Policy:

We reserve the right to modify this Warranty Policy at any time. We will post any changes to this policy on our website.

Contact Us:

If you have any questions about our Warranty Policy, please feel free to contact us at support.us@wattcycle.com.

We encourage you to read this warranty policy carefully. By purchasing a WattCycle battery, you agree to the terms and conditions of this warranty.

Description

  • EVE LF280K-280Ah  Grade A+ LiFePO4 CellsThe WattCycle 12V 280Ah Mini LiFePO4 Battery is equipped with EVE LF280K-280Ah  Grade A+ LiFePO4 Cells, ensuring top-tier safety, energy density, power, and stability. This battery provides reliable and long-lasting power with a minimal self-discharge rate of just 3% per month. It features robust protection against overcharge, over-discharge, over-current, and short circuits, offering peace of mind and dependable performance.
  • 200A BMS:  It comes with a high-performance 200A Battery Management System (BMS), which manages charge and discharge cycles, ensuring a maximum output of 200A while protecting the battery from overcharging, over-discharging, and short circuits. This advanced BMS enhances both safety and efficiency.
  • Longevity: With a lifespan of up to 10 years and between 5,000 and 15,000 charge cycles, this battery produces a total of 17,920 kWh of energy over its lifetime (3584Wh x 5,000 cycles). This longevity translates into significant cost savings, providing up to 50% power savings compared to utility power.
  • Cost-Efficient: The WattCycle 12V 280Ah MIni battery is also cost-efficient, offering robust energy storage for RVs, marine applications, or off-grid use. It is lightweight, weighing only a third of a comparable lead-acid battery with the same capacity, and is 12 lbs lighter than three packs of WattCycle 12V 100Ah LiFePO4 Batteries.
  • Lightweight: 12V 280Ah Mini lithium battery weighs only 1/3 of a comparable lead-acid battery with the same capacity, 12lbs lighter than 3 pack of WattCycle 12V 100Ah LiFePO4 Battery.
  • High Energy Density: The battery boasts a high energy density of 63 Wh/lbs (3584 Wh / 57.3 lbs ≈ 63 Wh/lb), which is nearly twice as much as comparable lead-acid batteries. 
  • Fast Charging Capabilities: It supports rapid charging, allowing for quicker turnaround times and minimizing downtime between uses.

WattCycle also ensures reliable and responsive service, with fast delivery within 2-5 business days from local warehouses in California, Texas, or Georgia. Customers benefit from lifetime support, including quick feedback within 24 hours, and accessible operation manuals and online support.

 

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Payment & Security

Payment methods

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Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.

Tested, Reviewed, and Approved by YouTubers

They are packing the power up NICE and DENSE inside of this battery, what I found out is that this battery's low voltage cut-off is at 9.2V instead of the typical 10V that we've been used to for the past couple of years. They are packing a lot of energy into a very small space.

@Temporarily Offline Ham Radio

That's a lot of power in a small format like this, very COOL! That's beyond the 300Ah, it held up real nice for the capacity test. I really like it!

@DIY Homestead Projects

It looks pretty large, but a 300Ah (280Ah) battery looks a bit small size and indeed it is smaller than you would expect. And, that's why they're calling it a mini battery. Anyway, the battery pretty much has the capacity, the answer is it ran that heater for over 6.5 hours straight!

@Solar Power Edge

It is absolutely incredible how tiny this thing is. I know this thing doesn't look real pretty, this is a great way to save a ton of money, this gives you a big big big power in a very small package that you can move around.

@Texas Prepper Projects

WattCycle 12V 300Ah (280Ah) Mini battery, this thing is absolutely insane at 3840Wh (3584Wh) worth of capacity. This thing is a beast of a battery in a very very compact format.

@Big Truck Big RV

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WattCycle 12V 280Ah LiFePO4 Lithium Battery Feature

Other 12V 280Ah Lithium Battery WattCycle 12V 280Ah MINl Lithium Battery Other 12V 300Ah Lithium Battery
17.8 x 9.4 x 8.7 inches | 69.93 lbs 15.1 x 7.6 x 9.8 inches | 57.32 lbs 20.5 x10.6 x 8.8 inches | 57.28 lbs
EV Grade A Cells EVE LF280K-280Ah Grade A+ Cells EV Grade A Cells
280Ah Single Cell Capacity: 310Ah 300Ah
4.000~15,000 Cycles 5.000~15,000 Cycles 4.000~15,000 Cycles

 

High-Capacity, Long-Life Performance

At 3584Wh capacity, WattCycle 12V 280Ah MINI LiFePO4 Battery outperforms traditional lead-acid options, delivering lasting power for up to 15,000 charge cycles. With its premium EVE A+ cells, this battery is built for superior energy efficiency and longevity, ensuring a reliable energy solution for up to 10 years.

WattCycle 12V 280Ah MINI LiFePO4 Battery Performance
WattCycle 12V 280Ah MINI LiFePO4 Battery performance

Powerful and Efficient Storage Solution

Unlock the power of compact energy with the WattCycle 12V 280Ah MINI LiFePO4 Battery. Designed for homeowners, DIY enthusiasts, and off-grid applications, this battery delivers exceptional performance and reliability for energy storage systems, solar setups, home power stations and more.

WattCycle 12V 280Ah MINI LiFePO4 Battery applications

Robust and Safe Construction

The WattCycle 12V 280Ah MINI LiFePO4 Battery is equipped with 600A overcurrent protection and an IP65-rated casing, providing resistance against dust and water. This makes it ideal for both indoor and outdoor use, ensuring durable and safe performance in any environment.

12V 280Ah MINI LiFePO4 Battery is equipped with 600A overcurrent protection and an IP65-rated casing

Versatile and Easy Installation

This compact yet powerful battery fits seamlessly into your existing system, giving you the flexibility to place it where it best suits your needs. Whether you're upgrading your solar system or setting up a DIY energy station, the WattCycle 12V 280Ah MINI offers installation ease and versatility.

WattCycle 12V 280Ah MINI offers installation ease and versatility

Replace Multiple Batteries with One Compact Unit

Streamline your energy setup by replacing three traditional 12V 100Ah lead-acid batteries with a single 280Ah MINI LiFePO4 unit. This upgrade simplifies your system, reduces weight, and enhances performance with a fraction of the maintenance.

replacing three traditional 12V 100Ah lead-acid batteries with a single 280Ah MINI LiFePO4 unit

Scalable Energy Solution

Expand your power system as needed. The 12V 280Ah MINI supports up to 16 parallel connections, offering the flexibility to grow your DIY solar or off-grid system without limits. Whether you're powering a small cabin or a large RV, this battery adapts to your energy needs.

WattCycle 12V 280Ah MINI lithium battery supports up to 16 parallel connections

Perfect for Off-Grid Living, RVs, and Solar Systems

The WattCycle 12V 280Ah MINI LiFePO4 Battery is a powerful choice for off-grid living, RV adventures, and solar power setups. Enjoy reliable, high-capacity power to keep your devices, appliances, and equipment running efficiently.

12V-280Ah-MINI-LiFePO4-Battery-Applications
12V-280Ah-MINI-LiFePO4-Battery-Runtime

WattCycle 12V 280Ah Mini Lithium Battery Tech Specs

General

Dimensions (Inches) 15.12 (L) x 7.64 (W) x 9.76 (H) 
Weight 57.32lbs / 26.0kg
Waterproof Rating IP65
Warranty 7 years
Housing Material ABS (Flame Retardant Plastic)
Terminal M8 bolts

12V 280Ah Mini Lithium Battery Feature

Cell EVE LF280K-280Ah Grade A+ LiFePO4 Cells
Nominal Voltage 12.8V
Capability Rated: 3.2V 280Ah Tested: 310Ah
Energy 3584Wh
Cycle Life 5,000+ cycles @100% DOD, 6,000+ cycles @80% DOD, 15,000+ cycles @60% DOD
Max Depth of Discharge (DOD) 100%
Max. Expansion 4S4P
Internal Resistance ≤40mΩ

Battery BMS

BMS 200A
Over Current Protection 600A
Max. Continuous Output Power 2560W
Max. Continuous Charge Current 100A
Max. Continuous Discharge Current 200A
Max. Discharge Current 300±50A (≤5s)

12V 280Ah Mini Lithium Battery Charge Specs

Charge Voltage 14.6V ± 0.2V
Charge Method CC / CV
Recommend Charge Current 0.2C
Charge Temperature 0℃ to 45℃ / 32℉ to 113℉
Discharge Temperature: -20℃ to 60℃ / -4℉ to 140℉
Storage Temperature -20℃ to 45℃ / -4℉ to 113℉
Low-Temperature Protection Yes (32℉/0℃)
Low-Temperature Charging Protection Recovery Yes (41℉/5℃)

Know More about 12V 280Ah Mini Lithium Battery

Is the 600A overcurrent protection on the 12V 280Ah Mini battery safe?

Yes, the 600A overcurrent protection on the 12V 280Ah Mini LiFePO4 Battery is designed with your safety in mind. The system is built to handle short bursts of high current (up to 600A for 1.2s) without causing damage to the battery. This protection ensures that in case of an overload or surge, the battery will safely disconnect to prevent any harm. The BMS (Battery Management System) constantly monitors the battery's health and can cut off power if necessary, so you don’t have to worry about overheating or permanent damage during high-demand situations. This level of protection ensures both the battery's longevity and your peace of mind, making it a reliable choice for various applications.

Does the 12V 280Ah Mini LiFePO4 Battery come with certification?

Yes, the 12V 280Ah Mini LiFePO4 Battery is fully certified to meet global safety and quality standards. It comes with the following certifications:

  • SDS (Safety Data Sheet): Ensures safe handling, storage, and transportation of the battery.
  • UN38.3: Verifies compliance with transportation safety standards for lithium batteries.
  • FCC: Certifies that the battery meets electromagnetic interference (EMI) regulations.
  • CE: Indicates the battery conforms to European Union safety, health, and environmental protection standards.
  • ROHS: Ensures the battery is free from hazardous materials, in compliance with environmental regulations.
  • UL: Verifies the battery meets rigorous safety standards, ensuring safe operation and protection against risks.

These certifications highlight the quality, safety, and environmental responsibility of our battery, giving you confidence in its performance and reliability.

Can I mix 230Ah and 280Ah batteries in a 12V system?

While it is possible to mix different battery capacities in a parallel setup, it is not recommended to mix 230Ah and 280Ah batteries in series in a 48V system. When batteries with different capacities are connected in series, the lower-capacity battery will be over-discharged and over-charged, leading to potential damage and reduced lifespan.

Can I Replace My Lead-Acid Batteries with the WattCycle 12V 280Ah MINI LiFePO4 Battery?

Yes, the WattCycle 12V 280Ah MINI LiFePO4 battery is a direct replacement for multiple lead-acid batteries. It offers better performance, requires less maintenance, safer and provides longer-lasting energy storage.

How Can I Monitor the Performance of My LiFePO4 Battery?

With our upgraded version of the 12V 280AH MINI: WattCycle 12V 280Ah MINI LiFePO4 Battery with Bluetooth, you can easily monitor the performance of your LiFePO4 battery. Simply connect to our official WattCycle app, which allows you to track essential data in real time, including battery voltage, charge/discharge status, temperature, and overall health.
With this Bluetooth connectivity, you can ensure that your battery is operating optimally, make adjustments as needed, and extend its lifespan by keeping track of important metrics, all from the convenience of your smartphone or tablet. This feature gives you peace of mind, knowing that you’re always in control of your energy storage system.

What Are the Best Ways to Charge a LiFePO4 Battery?

There are three efficient methods for charging your WattCycle 12V 280Ah MINI LiFePO4 battery, ensuring flexibility for a variety of situations:

  • AC to DC Charging: Use a dedicated LiFePO4 AC to DC charger for safe, reliable charging. This method features advanced three-stage technology to keep the battery in optimal condition.
  • Solar Charging: Pair your LiFePO4 battery with solar panels and a charge controller tuned for LiFePO4 batteries. Ideal for off-grid applications, solar charging is an eco-friendly and reliable option for remote areas.
  • Generator Charging: For locations without electricity, you can charge your battery with a generator using a DC to DC lithium battery charger. This method provides stable power in challenging conditions.

What is the difference between the 12V 280AH Mini LiFePO4 battery and the 12V 300AH lithium battery?

The 12V 280AH Mini LiFePO4 battery provides slightly less capacity compared to the 12V 300AH battery. However, both offer similar real-world performance for solar, RV, and marine applications. The 280AH version is a more cost-effective choice, providing excellent value with nearly identical output.

Can I Use the WattCycle 12V 280Ah Battery for Solar Energy Storage?

Yes, the WattCycle 12V 280Ah MINI LiFePO4 battery is an excellent choice for solar energy storage. It efficiently stores energy from solar panels for use when the sun isn't shining, providing a reliable power backup for your home or off-grid system.

Can I use the 12V 280AH LiFePO4 battery for emergency backup power?

Yes, the 12V 280AH LiFePO4 battery is a reliable option for emergency backup power. It can keep essential devices running, such as lights and refrigerators, during power outages. With a long lifespan and high reliability, it ensures peace of mind during power interruptions.

Is the 12V 280AH LiFePO4 battery compatible with off-grid solar systems?

Yes, the 12V 280AH LiFePO4 battery is a perfect fit for off-grid solar systems. It efficiently stores excess solar energy for use during non-sunny hours, ensuring a steady power supply and optimal performance for your solar energy setup.

What should I do if I want to combine 200Ah and 280Ah batteries in a series string?

If you're using multiple batteries in series to create a higher voltage system, such as 48V, it’s important to balance the capacities. You can use a series string of four 200Ah batteries in parallel with a series string of four 280Ah batteries, but ensure your charger is capable of managing a 480Ah total capacity to avoid imbalance. This approach can help maintain the longevity and efficiency of your batteries.