📧Subscribe WattCycle Unlock 5% OFF

👑WattCycle 3rd Anniversary

6% OFF Code:

ANNIVERSARY6

【👑3rd Anniversary】12V 314Ah Ultra LIthium Battery with Bluetooth

Sale price $54999 Regular price $72999

Earn [points_amount] when you buy this item.

  • Compact design of 61.72lbs | 20.63×9.65×8.66inch
  • Upgrade to 314Ah capacity & 4010Wh of energy
  • Ideal for RVs, solar systems, home storage, trolling motors, and marine
  • All-round 300A BMS protection
  • EV Grade-A cells with 5000-15000@DOD
  • Low-temperature cut-off protection (below -4°F)
  • Bluetooth 5.0 (Android & iOS)
  • Max. 4S4P to build an energy beast of 64.30kWh
  • IP65 Waterproof
  • Unique durable full-aluminum internal frame
  • 30% faster dissipation with built-in aluminum cooling fins
  • 50% higher current output with oxygen-free copper wires
Version
Quantity

Download

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 
  • Currently we DO NOT ship to Alaska, Hawaii, and Puerto Rico.
  • Please do not use PO Box addresses, which are not within the delivery range of FedEx. If you accidentally use such addresses, please contact us to change them in time to avoid delays in delivery.

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 service@wattcycle.com.

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.

  LiFePO4 Batteries (>50Ah) LiFePO4 Batteries (≤50Ah) Cells / Like New Batteries LiFePO4 Battery Charger Accessories
Website 5+2 Years 3 Years 3 Years 3 Years 1 Year
Amazon 5+2 Years 3 Years 3 Years 3 Years 1 Year
Temu 5+2 Years 3 Years 3 Years 3 Years 1 Year
Ebay 5+2 Years 3 Years 3 Years 3 Years 1 Year

Note: Only registered customers can extend the warranty service by 2 years. Final interpretation rights belong to WattCycle.

Question: Will my lithium battery still be covered under warranty after being connected in series or parallel?

Answer: As long as your product meets the warranty conditions and you have registered for the warranty, you will receive the corresponding warranty period. Connecting the batteries in series or parallel (or other normal operations) will not affect your product's warranty duration.

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 service@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

Unlock Unmatched Power & Endurance: Wattcycle 12V 314Ah Ultra Lithium Battery

Experience the pinnacle of deep-cycle energy storage with the Wattcycle 12V 314Ah Ultra Lithium Battery. Engineered for demanding applications where reliability, longevity, and massive capacity are non-negotiable, this powerhouse redefines what’s possible in 12V lithium technology.

Key Features & Benefits:

  • Massive 314Ah Capacity: Deliver sustained power for extended periods. Ideal for energy-intensive systems requiring long runtime without frequent recharging.
  • Ultra-Long Cycle Life: Built with premium LiFePO4 (LFP) chemistry, this battery boasts over 5,000 cycles at 100% Depth of Discharge (DoD), significantly outperforming traditional lead-acid batteries. Invest in power that lasts for years.
  • Exceptional Power Density: Enjoy a staggering 3840W of continuous power and even higher surge capabilities. Easily handle heavy loads, large inverters, and high-demand appliances.
  • Lightweight & Space-Efficient: Lithium technology offers a dramatic weight reduction – approximately 1/3 the weight of equivalent lead-acid batteries. Simplify installation and maximize usable space in RVs, boats, or off-grid cabins.
  • True Deep Discharge Capability: Safely utilize 100% of the usable capacity (314Ah) down to 0% State of Charge (SoC) without damaging the battery, thanks to advanced 300A Battery Management System (BMS) protection. Get the most out of every charge.
  • Advanced Built-in BMS: Comprehensive protection against overcharge, over-discharge, over-current, short circuit, and high/low temperatures ensures ultimate safety, reliability, and extends battery lifespan.
  • Rapid Charging: Accepts high charge currents, significantly reducing recharge time compared to lead-acid alternatives. Get back to full power faster.
  • Wide Temperature Range: Operates effectively in a broader range of temperatures than many competitors, making it suitable for diverse climates and environments.
  • Exceptional Value: While the initial investment is higher than lead-acid, the vastly superior cycle life, depth of discharge, weight savings, and zero maintenance translate to a significantly lower cost per cycle and total cost of ownership.

Ideal Applications:

  • Large Solar/Wind Off-Grid Systems: Perfect as a primary storage bank for cabins, tiny homes, or remote installations needing days of autonomy.
  • High-Demand RV & Marine Use: Power large inverters, air conditioners, induction cooktops, appliances, and electronics for extended boondocking or cruising.
  • Commercial & Industrial Backup Power: Reliable energy source for telecom, security systems, or mobile equipment.
  • Trolling Motors & Electric Vehicles: Provide long runtimes and high power for larger electric boats or utility vehicles.

The Wattcycle Advantage:

The "Ultra" designation signifies top-tier performance and durability. Wattcycle focuses on robust construction, high-quality LiFePO4 cells, and intelligent BMS design, delivering a battery built to withstand rigorous use and provide peace of mind for your critical power needs.

Upgrade to the Future of Power. Choose Wattcycle 12V 314Ah Ultra Lithium Battery – Where Capacity Meets Uncompromising Performance.

Reviews (40)

Customer Reviews

Based on 40 reviews
73%
(29)
23%
(9)
3%
(1)
3%
(1)
0%
(0)
K
Ken Colburn
Awesome

awesome battery! We had agm batteries and had to turn off mini split atv5pm now running til bedtime! Great in the desert.

D
Don
Does not record or track low current discharging

After living with and testing the 315 Ah BT 12v battery I can confirm that when using it to power devices around 1.5 amps or less, the app shows the battery in STANDBY with no current being recorded. Even after 50 Ah or more has actually been used over a few days, the battery percentage states the same. This is not just a problem with the app not updating (which also occurs at times) but the shunt in the battery just does not seem to be able to detect low current levels. Sometimes discharging would show up with current draw down to around 0.8 amps. But at other times even 1.5 amps would not be shown. The cell voltages record fine meanwhile. Unfortunately, as I use this battery to power a radio that requires 0.5 amps in receive mode, I need to add a Renogy battery monitor (an added $100) to know the SOC of the battery. So, if you use this battery where discharging is always about 2 amps or more it will be OK, but be aware of this problem at low current levels.

E
E.B.

Charges fast…works as it should.

G
Greg L
Nice battery but could be better

New to WattCycle, but I like the value and overall build quality of your batteries. However, the app leaves something to be desired. I like the BMS access via Bluetooth, but more details similar to what I get from my Victron smartshunt should be included. My advice is to redesign the app to provide more details and historical data. Id also like to see a physical button to manage a few things on the battery such as power -Greg

M
Munaman
Outstanding Battery/Outstanding Value

This 12V Lithium battery mini, has a the capacity of 3, 100 ah lithium batteries at almost the size of 1. This battery fit perfectly in my RV slot that held two 100ah lithium batteries. The features on this battery, the high quality build, and the affordable price tag, make this battery a great value for a great battery. Highly recommend.

Payment & Security

Payment methods

  • American Express
  • Apple Pay
  • Google Pay
  • Mastercard
  • PayPal
  • Shop Pay
  • Union Pay
  • Visa

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

Tech Specs

General

Dimensions (Inches) 20.63 (L) x 9.65 (W) x 8.66 (H) 
Weight 61.72lbs / 28kg
Waterproof Rating IP65
Warranty Sign Warranty to extend for 7 years
Case Material ABS+PC/UL94 V-0
Terminal M8 bolts

Battery BMS

BMS 300A
Standard/Max. Continuous Charging 62.8V/300A
Max. Continuous Discharge Current 300A
Over-current Discharge Protection 310A±10A
Over-current Charge Protection 310A±10A
Short Circuit Current Protection Support
Release Condition Cut Load
Charging High Temperature Protection 140°F ~ 158°F / 60°C ~ 70°C
Discharging High Temperature Protection 149°F ~ 167°F / 65°C ~ 75°C
High Temperature Protection Release Condition Drop by 41°F ~ 59°F / 5°C ~ 15°C
Charging Low Temperature Protection  23°F ~ 41°F / -5°C ~ 5°C
Discharge Low Temperature Protection -13°F ~ 5°F / -25°C ~ -15°C
Low Temperature Protection Release Condition Rise by 41°F ~ 59°F / 5°C ~ 15°C
Rated Voltage  12.8V
Standard Charging Voltage 14.6V±0.2V
Shipping Voltage 12.8V~13.5V
Shipping Capacity 50%
Cycle Life 6000@80%DOD
Self Discharge Rate <3%/Month
Series & Parallel Connections Max. 4 Parallel 4 Series
Cell Certifications UL1642/UL2580/UN38.3

Customer Reviews

Based on 40 reviews
73%
(29)
23%
(9)
3%
(1)
3%
(1)
0%
(0)
K
Ken Colburn
Awesome

awesome battery! We had agm batteries and had to turn off mini split atv5pm now running til bedtime! Great in the desert.

D
Don
Does not record or track low current discharging

After living with and testing the 315 Ah BT 12v battery I can confirm that when using it to power devices around 1.5 amps or less, the app shows the battery in STANDBY with no current being recorded. Even after 50 Ah or more has actually been used over a few days, the battery percentage states the same. This is not just a problem with the app not updating (which also occurs at times) but the shunt in the battery just does not seem to be able to detect low current levels. Sometimes discharging would show up with current draw down to around 0.8 amps. But at other times even 1.5 amps would not be shown. The cell voltages record fine meanwhile. Unfortunately, as I use this battery to power a radio that requires 0.5 amps in receive mode, I need to add a Renogy battery monitor (an added $100) to know the SOC of the battery. So, if you use this battery where discharging is always about 2 amps or more it will be OK, but be aware of this problem at low current levels.

E
E.B.

Charges fast…works as it should.

G
Greg L
Nice battery but could be better

New to WattCycle, but I like the value and overall build quality of your batteries. However, the app leaves something to be desired. I like the BMS access via Bluetooth, but more details similar to what I get from my Victron smartshunt should be included. My advice is to redesign the app to provide more details and historical data. Id also like to see a physical button to manage a few things on the battery such as power -Greg

M
Munaman
Outstanding Battery/Outstanding Value

This 12V Lithium battery mini, has a the capacity of 3, 100 ah lithium batteries at almost the size of 1. This battery fit perfectly in my RV slot that held two 100ah lithium batteries. The features on this battery, the high quality build, and the affordable price tag, make this battery a great value for a great battery. Highly recommend.