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WattCycle 12V 280Ah Mini Deep Cycle LiFePO4 BatteryWattCycle 12V 280Ah Mini deep cycle LiFePO4 battery size and weightWattCycle 12V 280Ah Mini lithium battery with EVE grade A+ LiFePO4 cellsWattCycle 12V 280Ah Mini lithium battery with 5000+ cycles lifeWattCycle 12V 280Ah Mini deep cycle LiFePO4 battery with powerful 200A BMSWattCycle 12V 280Ah Mini deep cycle LiFePO4 battery with low-temperature cut off protectionWattCycle 12V 280Ah Mini deep cycle LiFePO4 battery for multi-applicationPackage content of WattCycle 12V 280Ah Mini battery2 pcs WattCycle 12V 280Ah Mini Deep Cycle LiFePO4 Batteries3 pcs WattCycle 12V 280Ah Mini Deep Cycle LiFePO4 Batteries4 pcs WattCycle 12V 280Ah Mini Deep Cycle LiFePO4 Batteries
WattCycle 12V 280Ah Mini Deep Cycle LiFePO4 Battery
WattCycle 12V 280Ah Mini deep cycle LiFePO4 battery size and weight
WattCycle 12V 280Ah Mini lithium battery with EVE grade A+ LiFePO4 cells
WattCycle 12V 280Ah Mini lithium battery with 5000+ cycles life
WattCycle 12V 280Ah Mini deep cycle LiFePO4 battery with powerful 200A BMS
WattCycle 12V 280Ah Mini deep cycle LiFePO4 battery with low-temperature cut off protection
WattCycle 12V 280Ah Mini deep cycle LiFePO4 battery for multi-application
Package content of WattCycle 12V 280Ah Mini battery
2 pcs WattCycle 12V 280Ah Mini Deep Cycle LiFePO4 Batteries
3 pcs WattCycle 12V 280Ah Mini Deep Cycle LiFePO4 Batteries
4 pcs WattCycle 12V 280Ah Mini Deep Cycle LiFePO4 Batteries

Second-hand WattCycle 12V 300Ah (280Ah) Mini Lithium LiFePO4 Battery

Regular price €494,99 €799,99 | Save €305,00 (38% off)
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Note:

The cover of this battery is slightly open, but it can be fixed with glue.

WattCycle's battery top cover is glued on, which means you can easily remove the top of the battery without damaging the battery casing.

Key Features
  • ✔ Built with premium EVE LF280K-280Ah Grade A+ LiFePO4 cells
  • ✔ Dimensions: 384mm (L) x 194mm (W) x 248mm (H), Weight: 27kg
  • ✔ 33% more compact than three 12V 100Ah AGM batteries with equal capacity
  • ✔ Delivers 2560W of continuous power and 3584Wh of usable energy
  • ✔ Features a 200A BMS, supports 200A continuous charge/discharge, and up to 600A ± 50A peak discharge @ 1.2s
  • ✔ Scalable in 4P4S configuration for up to 57.344kWh total capacity

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Enjoy free & fast shipping to most European countries on WattCycle orders. Ship from Germany or Poland. Your package will typically arrive within 2-7 business days, so you can sit back and relax without worry.
*Please see our Shipping Policy for more details.


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WattCycle guarantees the quality and performance of our batteries and provides a straightforward, hassle-free warranty.
*Please see our Warranty Policy for more details.


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WattCycle 12V 280Ah Mini Deep Cycle LiFePO4 Battery

Second-hand WattCycle 12V 300Ah (280Ah) Mini Lithium LiFePO4 Battery

Second-hand WattCycle 12V 300Ah (280Ah) Mini Lithium LiFePO4 Battery

Thanks for choosing WattCycle. At WattCycle, we're committed to your satisfaction with our product(s). We guarantee that all WattCycle products are strictly tested by our quality inspectors before delivery.

We understand that there may be situations where you need to return or exchange your purchase. The following "Return & Refund Policy" applies to WattCycle products.

Order Cancellation

WattCycle accepts order cancellation before the product is shipped or produced. If the order is canceled, you will get a full refund via the original payment method within 10 working days (Due to delays in processing refunds from a bank).

WattCycle cannot cancel the order if the product has already shipped out.

Lost / Damaged Products Received

If the product was not delivered or lost, please immediately contact us. We will inquire about the situation and send you a statement. After you sign and send us the statement, we will re-arrange the shipment of your order.

If the product you received was damaged, or if you received an incorrect or incomplete product, please immediately contact us with proof of videos or pictures and product serial number (This number is on a sticker on the product, below the barcode.). After providing the above certificates and serial numbers, we will provide you with a solution based on the damaged or missing items.

30-Days Money-Back Guarantee

Within 30 days of purchase, if you are unsatisfied with the product and there are no quality issues, you are entitled to a refund upon returning the item in its complete, unused condition with original packaging intact. However, you will be responsible for covering the round-trip costs (including shipping fees and handling charges). Costs vary by country/region. Please contact us to confirm the specific costs..

If 30 days have passed since the purchase, a full refund cannot be offered.

Attention: For products that have been used (Unboxing), WattCycle reserves the right to refuse the return.

Return Shipping Cost

WattCycle Pays For Return Shipping

WattCycle will pay for the cost of return shipping if the reason for the return was the result of our error.

Examples of instances may include:

Item arrived defective and cannot be fixed with a replacement part.

We shipped out the wrong item.

We shipped it to the wrong address.

We shipped a duplicate order.

Item malfunctioned during the 30 day returns period. (The customer should install and operate the item properly per the product manual instruction.)

Attention

For items that arrive damaged or are defective, the customer MUST provide videos or photos to support the claim that the item arrived damaged or is malfunctioning. If a customer refuses to or fails to provide videos or photos of a claimed malfunctioning/damaged item, this return will be treated as “buyer’s remorse” and the customer is solely responsible for shipping it back. Once we have received the approved returned item, we will review its condition. If the item is found to be defective, we will issue a refund within 3 working days.

Customer Pays For Return Shipping

In the case of a return due to customer error, return shipping is the customer’s responsibility and shipping charges are paid by the customer. Fees vary by country, please contact us for specific fees.

Attention

Any order offered with special shipping charges is subject to a deduction from our actual outbound shipping costs.

After the 30-day returns period, customers may use the WattCycle Warranty Policy for repairs if the item is faulty or malfunctioning. Please refer to the WattCycle Warranty Policy for details.

Return Item & Address

After confirming with our customer service team that a return is possible, we will provide you with a return solution based on your order's fulfillment warehouse.

If your order was shipped from a German warehouse, we are unable to provide a return label. You will need to contact our customer service team to obtain the return address and arrange the return yourself.

If your order was originally shipped from a Polish warehouse, we will provide you with a return label. You simply need to take the product with the return label attached to a courier station to ship it back.

Refund

For non-quality-related issues and unopened packages, you will be responsible for covering the round-trip costs (including shipping fees and handling charges). Costs vary by country/region.

For quality-related issues reported more than 30 days after the purchase date, WattCycle will provide a partial refund based on the product's usage condition.

Refund Timeline: Once the product is returned to the WattCycle warehouse, WattCycle will process the refund within 7 business days and send you a refund confirmation notification.

Refund Method: The refund will be issued to your original payment method and account.

Attention

If you do not receive the refund within 10 business days, please contact us, and we will assist you in checking the refund status.

Disclaimer

WattCycle does not offer refunds for the following cases:

Discounted or promotional items.

WattCycle products purchased through other entities (e.g., distributors or retail partners).

Returns from a country/region different from the original shipping address of the order. If the return address differs from the original shipping location, resulting in shipping costs exceeding the initial fees, the user will be responsible for covering the additional shipping fees.

Products showing signs of wear, use, or alterations from their original condition.

Products damaged or lost during the return process.

Changes to This Policy

We reserve the right to modify this Return & Refund 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.

Contact

Shenzhen Washi Energy Co., Ltd.

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

FREQUENTLY BOUGHT TOGETHER

€89,99
€89,99

TOTAL: €179,98

Real Photos of Second-hand 12V 300Ah Mini Lithium LiFePO4 Battery

Real photo of Wattcycle 12V 300Ah(280Ah) mini LiFePO4 battery_for new theme
Real photo of second hand Wattcycle 12V 300Ah(280Ah) mini LiFePO4 battery_for new theme

Compact Battery with Exceptional Performance

The WattCycle 12V 300Ah (280Ah) Mini LiFePO4 battery combines premium EVE LF280K-280Ah A+ cells with comprehensive 200A BMS safeguards, delivering outstanding 15,000+ charge cycles @60% DoD and 3,584Wh capacity in a space-saving design.

Extraordinary Energy Density, Ideal AGM Battery Alternative

Weighing just 27 kg, the WattCycle 12V 300Ah (280Ah) Mini LiFePO4 battery delivers an impressive 3584 Wh of energy, achieving an outstanding energy density of 132.74 Wh/kg. This makes it 1.6 times more efficient than a set of three traditional 12V 100Ah AGM batteries—an excellent upgrade for high-performance energy needs.

Flexible Installation to Suit Your Space

The WattCycle 12V 300Ah (280Ah) Mini battery features a square casing and an internal iron bracket that securely holds the cells in place. It can be positioned in various orientations to match your setup requirements—just ensure the top cover doesn’t face downward.

Compact Design, Equal Capacity

While combining three 12V 100Ah AGM batteries in parallel creates a 12V 300Ah setup (1800 Wh), it takes up significantly more space compared to the WattCycle 12V 300Ah (280Ah) Mini LiFePO4 battery. Despite being smaller, the WattCycle delivers 3584 Wh—twice the energy output in a much more compact form.

IP65 Rated for Outdoor Protection

The WattCycle 12V 300Ah (280Ah) Mini battery is built to resist water and dust with its IP65 rating, making it a reliable power source for outdoor environments like boating, motorhome adventures, fishing journey, camping, and more.

High-Capacity 3584Wh Power for Versatile Use

With up to 3584Wh of energy storage and a 2560W output, this battery easily supports indoor energy needs and enhances off-grid activities. Dependable performance—by your side every step of the way.

Reliable and Portable Energy Source

Engineered for both strength and mobility, the WattCycle 12V 300Ah (280Ah) Mini battery offers dependable power in a lightweight form. Perfect for off-grid setups, yachts, caravan travel, UPS systems, and more—wherever energy is needed.

PRODUCT DESCRIPTION

Compact & Lightweight Powerhouse: The WattCycle 12V 280Ah Mini Lithium LiFePO4 battery measures L384 x W194 x H248mm and weighs 27kg, making it smaller and lighter than most 12V 280Ah batteries—the best choice for RVs, boats, and home storage!

Premium EVE LF280K-280Ah Cells: Built with high-performance grade A+ EVE LF280K-280Ah LiFePO4 cells (actual capacity measured ≥ 310Ah), this battery delivers unmatched safety, energy density, and stability for reliable performance.

Advanced 200A BMS Protection: A high-performance 200A BMS ensures safe operation, protecting against overcharge, over-discharge, over-current, short circuits, and extreme temperatures(high and low-temperature environments) while maximizing power output.

Ultra-high Energy Density: With 3584Wh energy and a lightweight 27kg design (132.74Wh/kg), this battery outperforms three 12V 100Ah lead-acid batteries, offering a superior lead-acid alternative.

Scalable Energy Solution: Connect up to 16 batteries in 4 in parallel and 4 in series to create a 51.2V 1120Ah system, delivering 40.96kW continuous power and 57.34kWh energy for large-scale energy needs.

TECH SPECIFICATIONS

  • Technology LiFePO4 Technology
  • Nominal Voltage 12.8V
  • Standard Charging Voltage 14.6V ± 0.2V
  • Nominal/Usable Capacity 280Ah
  • Max. Continuous Output Power 2560W
  • Energy 3584Wh
  • Battery Dimensions L384 x W194 x H248 mm
  • Weight 27 kg
  • Waterproof Rating IP67
  • Warranty 5 Years
  • Casing Material ABS (Flame-Retardant Plastic) + PC / UL 94 V-0
  • Series & Parallel Configurations Max. 4 in Parallel, Max. 4 in Series
  • BMS 200A
  • Standard Continuous Charge Current 56A (0.2C)
  • Max. Continuous Charge/Discharge Current 200A (1C)
  • Over-current Charge Protection 210A ± 10A
  • Over-current Discharge Protection 600A ± 50A
  • Short Circuit Protection Yes
  • Release Condition Cut-Off Load
  • Overheat Protection During Charging 60℃ – 70℃
  • Overheat Protection During Discharging 65℃ – 75℃
  • Overheat Protection Release Condition Drops to 5℃ – 15℃
  • Low-Temperature Protection During Charging -5℃ – 5℃
  • Low-Temperature Protection During Discharging -25℃ – -15℃
  • Low-Temperature Protection Release Condition Rises to 5℃ – 15℃
  • Charging Temperature 0℃ – 65℃
  • Discharging Temperature -20℃ – 70℃
  • Storage Temperature 0℃ – 60℃

COMPARISON

Other Brand 12V 280Ah LiFePO4 Battery WattCycle 12V 280Ah LiFePO4 Battery Other Brand 12V 300Ah LiFePO4 Battery
EV Grade A LiFePO4 Cells EVE LF280K-280Ah EV Grade A LiFePO4 Cells
280Ah 280Ah (Initial Capacity ≥ 310Ah) 300Ah
L522 x W240 x H218 mm L384 x W194 x H248 mm L522 x W240 x H218 mm
26.85 kg 27 kg 29.09 kg
✔ Low-Temperature Protection ✔ Low-Temperature Protection x Low-Temperature Protection

FAQs

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

Of course, the WattCycle 12V 280Ah Mini deep cycle LiFePO4 battery is safe, with 600A current only supported for 1.2 seconds. This overcurrent protection ensures that in the event of an overload or surge, the battery will be safely disconnected 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.

How long will a 280Ah battery last?

Battery runtime is influenced by multiple factors, including battery capacity, connected load, and the battery’s condition. For example, a new battery performs better than a used one, as its capacity slightly decreases with repeated charge cycles. However, you can estimate runtime using a simple formula based on power consumption and battery capacity:

Runtime (hours) = Battery Capacity (Wh) / Total Device Power Consumption (W)

Example:
If you have a 12V 280Ah Mini battery and connect a 50W lamp and a 50W speaker, the runtime will be:
3584Wh / (50W + 50W) = 35.84 hours

This straightforward formula helps estimate runtime under different loads. Always consider real-world factors like temperature and battery aging for more accurate predictions.

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.
  • UL1642: Verifies that 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.

How many kWh is a 280Ah battery?

3584Wh!

WattCycle 12V 280Ah Mini battery with 200A BMS provides 2560W output power and 3584Wh energy storage.

How to charge WattCycle 12V 280Ah Mini deep cycle LiFePO4 battery?

WattCycle LiFePO4 Batteries are straightforward to charge. The following 3 charging methods are recommended by WattCycle:

1. Dedicated 12V LiFePO4 Battery Chargers

  • Charging Recommendations:
  • Recommended Charging Voltage: 14.6V ± 0.2V
  • Recommended Charging Current:
  • 60A (0.2C): Charges the battery to 100% capacity in approximately 5 hours.

2. Solar Panel & Solar Charge Controller

  • Harness solar energy! With 4.5 hours of effective sunlight per day, a 1200W solar panel system can fully recharge your battery in a single day.
  • Solar Panel Flexibility: Larger solar panels (e.g., over 1200W) can also charge your battery, though charging times may vary depending on sunlight intensity and duration.
  • Critical Component: Always use a solar charge controller to regulate voltage and protect the battery.

3. DC-DC Generator/Alternator
Compatible Power Source is Key:
Ensure your generator or alternator has a DC output. In this case, a DC-DC charger is required to connect it to the battery.
AC Output Option: If your generator/alternator uses an AC output, refer to our recommendations for a compatible battery charger to interface with your battery.

Charging Recommendations:

  • Recommended Charging Voltage: 14.6V ± 0.2V
  • Recommended Charging Current:
  • 60A (0.2C): Charges the battery to 100% capacity in approximately 5 hours.

CUSTOMER REVIEWS

Customer Reviews

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USER MANUAL

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.

YouTuber @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!

YouTuber @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!

Youtuber @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.

Youtuber @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.

Youtuber @Big Truck Big RV

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