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【10 Days Pre Sale】12V 314Ah Mini LiFePO4 Battery

Sale price $49999 Regular price $62999
  • 15.12×7.64×9.76 inch | 59.52 lbs
  • Upgrade to 314Ah capacity & 4019Wh of energy
  • Ideal for RVs, solar systems, home storage, trolling motors, and marine
  • All-round 200A 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 64.30 kWh
  • IP65 Waterproof
  • Unique internal metal frame improves swelling & shock resistance
  • 30% faster dissipation with built-in aluminum cooling fins
  • 50% higher current output with oxygen-free copper wires
  • Free shipping & 5+2 years warranty
  • Certified by IEC/ROHS/CE/FCC/UN38.3/Class9
Quantity

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 
  • 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

Power Your Adventures with Unmatched Reliability

Elevate your energy independence with the Wattcycle 12V 314Ah MINI Lithium Battery—a high-performance, lightweight power solution designed for adventurers, off-grid enthusiasts, and eco-conscious users. Whether you’re powering an RV, marine vessel, solar setup, or backup home system, this lithium iron phosphate (LiFePO4) battery delivers exceptional capacity, durability, and smart technology to keep you running longer and safer. 

Key Features:

  • Massive 314Ah Capacity: Store ample energy for extended trips or emergency backup needs, with 4,019Wh of reliable power to support high-demand appliances and systems.
  • 5,000+ Deep Cycles: Built with premium LiFePO4 cells and an advanced BMS (Battery Management System), enjoy a lifespan 10x longer than lead-acid batteries—even with daily deep discharges.
  • Lightweight & Space-Saving: At 1/3 the weight of traditional batteries, install and transport with ease. Perfect for mobile setups where every pound matters.
  • Ultimate Safety & Protection: The integrated BMS safeguards against overcharge, over-discharge, short circuits, and extreme temperatures, ensuring worry-free operation in harsh environments.

Why Choose Wattcycle?

✅ Zero Maintenance: Skip the hassle of watering or periodic checks—just install and enjoy consistent power.

✅ Fast Charging: Compatible with solar, alternators, and standard chargers; recharge up to 5x faster than lead-acid alternatives.

✅ Eco-Friendly: Non-toxic, recyclable, and free from hazardous materials—ideal for sustainable living.

Upgrade to Smarter Energy Today!

The Wattcycle 12V 314Ah MINI Lithium Battery combines cutting-edge technology with rugged durability, empowering you to explore farther, live greener, and never compromise on power. Includes a user-friendly app, comprehensive BMS protection, and a 7-year warranty for peace of mind. 

Reviews (36)

Customer Reviews

Based on 36 reviews
69%
(25)
28%
(10)
3%
(1)
0%
(0)
0%
(0)
w
walter

Came on time as expected

W
Wayde Gendreau
Great battery and excellent service!

Batteries received quickly and well packaged. Watt Cycle honored a price drop the day after I ordered without hesitation. Communication has been excellent. I requested information regarding the batteries to program my charger isn’t it was answered promptly.
The batteries are great looking and up to this point perform well. I’m very pleased with my purchase!

R
Robert

A good product, I'm getting another one.
This battery last me eight or nine days before recharging.

M
Michael Smith
Well Done Insurance!!!

A lot of people started to worry about the top falling off, and WattCycle responded immediately. They started to offer insurance. I only had to pay a few dollars to buy insurance. If the battery was damaged during transportation, I could skip WattCycle and claim directly from my insurance company. That was great, and I was happy with the service. After all, shipping damage cannot be completely avoided.

N
Nathan King
Ideal for Solar Systems

Powers my solar system effortlessly. Lightweight and compact. Overcurrent protection offers peace of mind.

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.

WattCycle 12V 314Ah LiFePO4 Battery

WattCycle 12V 314Ah LiFePO4 Battery—your high-capacity solution delivering a true 314 Ah (4.01 kWh) energy reserve in a compact, portable package. Perfectly suited as an upgrade from any “12V 300Ah lithium battery,” it gives you the extra runtime you’ve been looking for without adding bulk.

Core Advantages in One Unit

  • EV-Grade A+ Cells ensure stable, high-current delivery
  • 200 A BMS with over-current, over-charge, and low-temp cut-off (< –4 °F)
  • IP65 Waterproof enclosure for dusty trails or marine spray
  • Built-in Cooling Fins disperse heat 30 % faster
  • Braided Copper Wiring delivers 50 % higher current
  • All-Aluminum Frame for shock resistance
  • 15,000+ Cycles for a decade of service life

Weather-Proof Performance

Whether you’re charging in 113 °F summer heat or discharging at –4 °F ice-fishing, this battery keeps pace. Charge range: 32 °F to 113 °F (0 °C–45 °C). Discharge range: –4 °F to 140 °F (–20 °C–60 °C). For anyone running a “solar battery 12V 300Ah” system in extreme climates, this pack won’t flinch.

High-Capacity Performance

Compared with our 12V 280Ah MINI model, the new 314 Ah battery packs 15 % higher energy density and a 12 % capacity bump—ending your energy anxiety once and for all. For those eyeing a “300Ah slim lithium battery 12V,” this is the same sleek form factor with extra juice. At just 59.5 lbs (15.12×7.64×9.76 in), it’s one-third the weight of lead-acid equivalents yet doubles the usable energy. Perfect when you need a “solar battery 12V 300Ah” solution without sacrificing cargo space.

Triple-Shield Safety

The WattCycle 12V 314Ah LiFePO4 Battery stands up to harsh conditions thanks to its unique full-aluminum internal frame,Which not only reinforces the cell structure but also integrates cooling fins that improve heat dissipation by 30 %. That means during heavy discharge or rapid charging, excess warmth is whisked away faster—protecting cell health and maintaining peak performance. Meanwhile, braided copper wires have been newly added inside the battery, enabling it to provide more than 50% of the power with the minimum voltage drop. This three-tier design makes it one of the safest 12V 300Ah deep cycle battery options on the market.

Simplified Comparison

For those running three 12V 100Ah batteries in parallel, you’d typically combine to 300 Ah. That setup adds weight, wiring complexity, and more points of failure. By choosing one WattCycle 314Ah MINI battery instead. you get additional benefits.

Scalable Energy Expansion

Scale up your array with extra WattCycle battery to build a 4S4P (64.3 kWh) mega-bank ideal for large solar arrays or whole-home backup. your go-to for WattCycle 12V 314Ah batteries that need to grow as your demand does.

Tech Specs

General

Dimensions (Inches) 15.12 (L) x 7.64 (W) x 9.76 (H) 
Weight 59.52lbs / 27kg
Waterproof Rating IP65
Warranty Sign Warranty to extend for 7 years
Case Material ABS+PC/UL94 V-0
Terminal M8 bolts

Battery BMS

BMS 200A
Standard/Max. Continuous Charging 62.8V/200A
Max. Continuous Discharge Current 200A
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 36 reviews
69%
(25)
28%
(10)
3%
(1)
0%
(0)
0%
(0)
w
walter

Came on time as expected

W
Wayde Gendreau
Great battery and excellent service!

Batteries received quickly and well packaged. Watt Cycle honored a price drop the day after I ordered without hesitation. Communication has been excellent. I requested information regarding the batteries to program my charger isn’t it was answered promptly.
The batteries are great looking and up to this point perform well. I’m very pleased with my purchase!

R
Robert

A good product, I'm getting another one.
This battery last me eight or nine days before recharging.

M
Michael Smith
Well Done Insurance!!!

A lot of people started to worry about the top falling off, and WattCycle responded immediately. They started to offer insurance. I only had to pay a few dollars to buy insurance. If the battery was damaged during transportation, I could skip WattCycle and claim directly from my insurance company. That was great, and I was happy with the service. After all, shipping damage cannot be completely avoided.

N
Nathan King
Ideal for Solar Systems

Powers my solar system effortlessly. Lightweight and compact. Overcurrent protection offers peace of mind.