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WattCycle 12V 628Ah Ultra Lithium Battery with Bluetooth
Expected Delivery on - .
- ✔ L480 x W362 x H242 mm, 69.85 kg
- ✔ 3840W Output Power, 8038Wh Usable Energy
- ✔ Equivalent Usable Energy to 2 x 12V 314Ah Mini Bluetooth Batteries in Parallel
- ✔ Ultra-powerful 300A BMS, 300A Max. Cont. Dis-/Charge Current, 310A ± 10A @ 1.2s Peak Discharge Current
- ✔ Real-Time Monitoring via WattCycle App
- ✔ Support 4P4S Connection to 128,6 kWh Energy
- ✔ Certifications: IEC, CE-EMC, CE-RoHS, CE-Battery, FCC-SDOC, UN38.3, MSDS
🚚 Free & Local Shipping
🛡️ Hassle-Free Returns & Protection
📞 24/7 Human-Powered Support
📄 Download
- 1 Pack (8.03 kWh) / No ECE R10 Version - €1.149,99
- 1 Pack (8.03 kWh) / With ECE R10 Version - €1.169,99
- 👍 2 Pack (16.07 kWh) / No ECE R10 Version - €2.239,99
- 👍 2 Pack (16.07 kWh) / With ECE R10 Version - €2.279,99
- 3 Pack (24.11 kWh) / No ECE R10 Version - €3.359,99
- 3 Pack (24.11 kWh) / With ECE R10 Version - €3.419,99
- 👍 4 Pack (32.15 kWh) / No ECE R10 Version - €4.479,99
- 👍 4 Pack (32.15 kWh) / With ECE R10 Version - €4.559,99
WattCycle 12V 628Ah Ultra Lithium Battery with Bluetooth
This policy applies to product returns, refunds, and order processing for items purchased through official WattCycle channels and authorized distributors.
Table of Contents
- I. Order Cancellation
- II. Receiving Exception Handling
- III. Return Policy
- IV. Refund Policy
- After-Sales Policy Summary
- VI. Return Procedure
- VII. Special Notes
I. Order Cancellation
Order Status | Processing Method |
Not Shipped | Cancellation request can be submitted for a full refund. |
Shipped | Shipped orders cannot be intercepted or cancelled. Customers may apply for a return and refund after receiving the package in accordance with the return policy, or refuse the package upon delivery. |
II. Receiving Exception Handling
If you discover any of the following issues upon delivery, please contact customer service within 48 hours and provide the required documentation:
Exception Type | Required Documentation |
Product Damaged | Clear photos/videos (showing damage to outer packaging and product) |
Wrong Product Shipped | Photos (showing received product and label) |
Missing Items | Photos (showing all received items) |
Product Not Delivered/Lost | / |
III. Return Policy
1. 30-Day Returns
Within 30 days of receiving your product, if you are unsatisfied and the product meets the following conditions, you may apply for a return:
Return Conditions:
- Product is unused and uninstalled
- Product remains in original condition, no scratches or damage
- All original accessories, manuals, and packaging materials are included
- Valid proof of purchase must be provided
Fee Information:
- Return shipping costs are borne by the customer.
- The refund amount will be your actual purchase price.
2. Returns Beyond 30 Days (Non-Quality Issues)
For returns due to personal reasons beyond 30 days of purchase, depreciation fees will be deducted based on the purchase duration, and restocking fees will apply.
3. Quality-Related Returns
For quality-related returns, please refer to the WattCycle Warranty Policy. Products confirmed to have quality issues within the warranty period are eligible for free replacement or refund.
4. It is recommended to retain the original packaging intact for at least 30 days.
5. Before shipping your return, please take photos of the package, shipping label, and recorded weight. Keeping these records may help avoid potential disputes if any issues occur during transit. Thank you for your cooperation and support.
IV. Refund Policy
1. Refund Process
- After the return request is confirmed by customer service, the product must be shipped back to the designated warehouse.
- Refunds will be processed within 3-5 business days after we receive and inspect the returned product. (If you see that the product has been delivered back to the warehouse, please contact us proactively to initiate the refund.)
2. Refund Method
- Refunds will be issued via the original payment method (PayPal or credit card).
- The refund amount will be calculated after final verification, deducting any applicable fees, and returned through the original payment channel.
3. Refund Inquiry
If you have not received your refund within 7 business days after it has been processed, please follow these steps to check:
- Check your bank account or payment account
- Contact your issuing bank or payment platform (refunds may experience processing delays)
- Contact WattCycle customer service for assistance
After-Sales Policy Summary
Scenario | Resolution | Shipping Responsibility | Notes |
Quality issue (within 6 months) | Free replacement/refund | WattCycle covers shipping costs | Requires quality defect confirmation, valid proof of purchase, and within the warranty period |
Quality issue (after 6 months, within warranty) | Free replacement | WattCycle covers shipping costs | Requires quality defect confirmation, valid proof of purchase, and within the warranty period |
Personal reason (return within 30 days) | Return for refund | Customer bears return shipping | Packaging intact, product in good condition. Warehouse restocking fees will be charged. |
Personal reason (return after 30 days) | Return for refund | Customer bears two-way shipping | Warehouse restocking fees and depreciation fees will be charged. |
Wrong item shipped / Missing item / Transit damage | Free replacement | WattCycle covers shipping costs | / |
Order cancellation (before shipment) | Refund | No shipping charges incurred | / |
Beyond 6 months (non-quality issues) | Returns not accepted | / | / |
VI. Return Procedure
- Contact Customer Service: Reach out via service@wattcycle.com, explain the reason for return, and provide your order number.
- Obtain Authorization: After confirming eligibility for return, customer service will provide a Return Label and return address.
- Pack and Ship: Securely pack the product using the original packaging to ensure safe transit.
- Ship and Track: Send the product back following customer service instructions and retain the tracking number.
- Refund Processing: Once the warehouse receives and inspects the returned item, the refund will be processed.
VII. Special Notes
- We reserve the right to refuse returns for products that have been used, installed, or have incomplete packaging.
- Packages returned directly without confirmation and a Return Label from customer service will not be processed.
- Customized products or those with activated extended warranties may be subject to special return conditions. Please consult customer service.
- This policy applies only to the original consumer and does not apply to secondary resale.
Contact Information:
📧 Official Customer Service Email: support.eu@wattcycle.com
🌐 Official Website: www.eu.wattcycle.com
Inside Look of 12V 628Ah Ultra LiFePO4 Battery
12V 628Ah Capacity Test Result
Look at Juki's test result of the capacity of the 12V 628Ah battery. It shows 667,69Ah capacity & 8530,95Wh usable energy, much higher than the 628Ah capacity.
Don't just get the rated capacity, get more kilometers, more minutes, more peace of mind.
A higher initial capacity means you start with a bonus. For you, this translates directly into extended runtime for your devices, increased cycle life as the battery ages, and a valuable performance buffer under demanding conditions.
WattCycle Battery Review & In Real Uses
Unleashing the Future of Energy – 12V 628Ah Ultra Bluetooth Battery
Experience cutting-edge LiFePO4 energy storage with the WattCycle 12V 628Ah Ultra Bluetooth battery, designed for unmatched reliability, efficiency, and scalability. Built with EV-grade A+ prismatic cells and a powerful 300A BMS, it provides advanced 6X protection. With configurable 4P × 4S expansion, this LiFePO4 deep cycle battery can scale up to an impressive 128.61kWh, making it ideal for large-scale solar systems, motorhomes, marine vessels, and off-grid installations.
Foremost Bluetooth Monitoring & Control
With built-in Bluetooth 5.0 connectivity, the WattCycle App gives you complete control of your 12V 628Ah Ultra lithium battery right from your smartphone. Instantly track real-time data such as voltage, current, and cell temperature, and adjust key parameters.
This intelligent Bluetooth ensures your 12V 628Ah Ultra LiFePO4 deep cycle battery is always operating at peak performance. Whether powering an off-grid solar system, driving a campervan energy setup, or supporting a marine power bank, you gain full visibility and the ability to fine-tune performance with just a few taps. It’s smarter, safer, and more convenient energy management designed for demanding applications.
Rugged Protection for Extreme Climates
Engineered for reliability in all seasons, the WattCycle 12V 628Ah Ultra Bluetooth lithium battery integrates advanced thermal management to safeguard performance in both freezing winters and sweltering summers. Charging is automatically paused below 0℃ and resumes only once the temperature rises above 5℃, while discharging is halted below–20℃ to prevent internal cell damage.
This intelligent design ensures the 12V 628Ah Ultra LiFePO4 deep cycle battery delivers consistent, uninterrupted energy even in the harshest environments. Whether powering remote off-grid cabins, caravans in icy climates, or marine systems exposed to intense heat, you can count on dependable long-term operation with no compromise in safety or efficiency.
Outstanding Performance Over Lead-acid Batteries
The WattCycle 12V 628Ah Ultra lithium battery sets a new benchmark in durability and safety compared to outdated lead-acid systems. Compared with 3 Pack 12V 200Ah lead-acid batteries, this 12V 628Ah delivers 2.23 times the usable energy of the lead-acid ones. Although it provides more energy, it weighs nearly 50% lighter than the lead acid batteries. Whether installed in a warehouse, boat, or backup power system, this 12V 628Ah battery delivers unmatched reliability and efficiency.
Scalable High-capacity Energy Solutions
Each WattCycle 12V 628Ah Ultra LiFePO4 battery delivers an impressive 8,038.4Wh of usable energy in a compact design (L480 x W362 x H242 mm | 69.85 kg). For larger projects, up to 16 units can be configured in a 4P4S system(4 in parallel and 4 in series), creating a powerful 51.2V 2512Ah bank with a massive 128.61kWh capacity. This modular architecture ensures maximum flexibility, allowing you to scale energy storage from a single battery to a full residential microgrid or large-scale commercial backup system.
Three Charging Methods, Always Stay Energized
There are 3 charging methods to charge the 12V 628Ah Ultra Bluetooth LiFePO4 battery, making you no longer fear energy shortage. Charging it with the WattCycle 12V 60A LiFePO4 battery charger, it only takes 10.46 hours to fully charge the 12V 628Ah Ultra battery, significantly faster than traditional lead-acid batteries. For added convenience, 2 additional charging methods are provided: solar panels with an MPPT and generators, which offer versatile solutions to keep your battery powered in any environment, whether on the road, at sea, or off-grid.
Reliable Energy Solutions for Whatever Life You Lead
The WattCycle 12V 628Ah Ultra LiFePO4 battery is engineered for versatility, making it the ideal choice for both residential and commercial energy needs. From home energy storage and remote off-grid microgrids to marine vessels and long-distance campervan travel, this LiFePO4 deep cycle battery provides stable, long-lasting power. In mission-critical systems such as UPS backup or telecom stations. Whether powering a cabin, supporting a solar array, or delivering reliable energy on the water, the WattCycle 12V 628Ah Ultra lithium battery ensures dependable performance for today’s most demanding applications.
PRODUCT DESCRIPTION
Resilience for Extreme Energy Needs: The WattCycle 12V 628Ah Ultra Bluetooth LiFePO4 Battery redefines energy storage with massive capacity and intelligent design. Built with advanced LiFePO4 technology, it ensures unmatched reliability, high cycle endurance, and scalable energy for motorhomes, yachts, solar storage, and commercial backup systems.
Ultra-High Usable Energy of 8,038Wh: Compact yet powerful, this battery provides more than 8kWh of storage in a single unit (L480 × W362 × H242 mm, 69.85 kg). Equivalent to two 12V 314Ah batteries in parallel, it maximizes space and energy efficiency for motorhomes, off-grid homes, and marine applications.
Premium EV-Grade A+ Cells: Manufactured with prismatic automotive-grade cells, this 12V 628Ah Ultra lithium leisure battery offers superior stability, safety, and durability. It achieves over 6,000 cycles at 80% DoD, delivering up to a decade of reliable use—far exceeding standard lithium batteries.
Smart Bluetooth Monitoring & Flexible Expansion: Monitor real-time performance—voltage, SoC, current, temperature via the WattCycle app. Configure up to 4 in parallel (2,512Ah) or 4 in series (51.2V) for a total 128.61kWh capacity. After expansion, users can easily track each battery’s status and manage charging/discharging through Bluetooth.
Powerful 300A Continuous Discharge: Equipped with a robust 300A BMS, the battery delivers 3,840W continuous output, supporting heavy-duty inverters, industrial-grade equipment, and high-demand off-grid systems.
Triple Energy Density of Lead-Acid: At 115Wh/kg, this LiFePO4 deep cycle battery achieves three times the energy density of traditional lead-acid batteries. Lightweight yet powerful, it is ideal for campervans, marine vessels, and mobile energy storage solutions. Constructed with recyclable materials, it is maintenance-free and eco-friendly.
Advanced 8-Fold Safety Protection: The integrated 300A BMS provides critical safeguards, including over-charge, over-discharge, over-current, short-circuit, and temperature protections. Charging cut-off: -5°C to 60°C; discharging cut-off: -25°C to 75°C, ensuring safe use in extreme environments.
Wide Application & Optimized Lifetime Value: Designed for off-grid residences, solar storage systems, motorhomes, boats, farms, UPS backup, and emergency power, the WattCycle 12V 628Ah Ultra offers exceptional longevity, reducing overall cost of ownership and ensuring energy independence.
