WEIZE

12V 300Ah 3840Wh LiFePO4 Lithium Battery Up to 8000 Deep Cycles & Smart BMS

$1,099.99 $979.99 Save 11% Sold out
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BAC-0091-REP

Product information

Our goal is to ship out orders that have been placed and paid for the same day. However, due to situations like missed shipment cut-off times, holidays, weekends, and other events out of our control, your shipment may be fulfilled 1-2 business days after an order is placed.

Shipping Outside the Contiguous 48 States

While we do not ship directly outside the 48 united states, we can work with your freight forwarder to accommodate your orders. You, the customer, are responsible for paying all customs duties, taxes, and other additional fees applied upon export. The freight forwarder is responsible for inspecting the packages before accepting to deliver them. Once the packages are accepted by the freight forwarder, Hykolity is not responsible for any damage or loss of the packages.We do not ship our products to the following:

  • P.O. boxes
  • Military APO
  • States/territories outside the contiguous U.S. including Hawaii, Alaska, Puerto Rico, and the Virgin Islands
  • Countries outside of the United States
Out-of-Stock/Back-Ordered Products Policy


If your order includes out-of-stock items, the remaining in-stock items will be shipped as soon as the order is paid for. Back-ordered items will be sent to you via ground shipping at no additional charge when the stock is replenished. You can request the order to be shipped in one batch when all items are available.

Cancellation Policy

If you wish to cancel an order that has NOT been shipped, contact our customer service department at inquiry@weizeus.com or call (562)456-0507. We will do our best to assist you in a timely fashion. Special order items and items marked as shipped cannot be canceled after the order is processed. Returned items are subject to restocking fees. If an order cannot be canceled, you will be able to return eligible items, shipping charges may apply.

Disclaimer

1. WEIZE cannot be held responsible or liable for delayed shipments caused by events beyond our control. These events may encompass but are not limited to, natural disasters, acts of God, power and server outages, as well as omissions from carriers, transmitters, phone companies, and internet service providers.

2. We do not offer pickup service for orders valued below $1,000 USD. If your order meets this requirement and you need pickup service, please contact us immediately after placing your order.

Return Policy:

Our return policy allows you 30 days from the date of item delivery to request a return. Please note that returns are not accepted after this 30-day period.

Eligibility Criteria:

To be eligible for a return, your item must be in its original, unworn, and unused condition, including all items inside the box and in their original packaging. Customers are required to provide photos and videos of the products and boxes. Additionally, a receipt or proof of purchase is necessary.

Initiating a Return:

To start a return, please contact us at inquiry@weizeus.com. If your return is approved, we'll provide detailed instructions on where and how to send your package.

Important Note:

  1. Used items can only be returned if there are quality issues.
  2. Customers are responsible for processing and shipping costs for both delivery and return if they purchase the wrong product or no longer want it.

Procedure Reminder:

Ensure you request a return before sending back items. Items returned without prior authorization will not be accepted. WEIZE is not liable for the shipping costs incurred by customers returning packages without authorization.

Non-Returnable Items:

Items that fall under the following categories are non-returnable:

  1. Giveaways or free items
  2. Used items
  3. Items damaged due to human causes
  4. Products from unauthorized resellers
  5. Items in large orders

Defective or Damaged Products:

If the product is defective or damaged, please provide photos or videos to our customer service within 10 days of receiving the goods. We will cover the return (exchange) shipping costs. Failure to do so within 10 days or a lack of response will make the buyer responsible for any loss.

Return Process:

Upon receiving returned items, we will verify the product's condition within 2-3 business days and initiate a refund within the next 3 business days. We will notify you of the refund status. Approved refunds will be automatically processed through your original payment method. Please note that the bank or credit card company may require additional time to complete the refund.

Limited Warranty:

WEIZE comes with a 1-year/2-year/5-year/10-year Limited Warranty covering defects in materials and workmanship under normal use. The warranty is only applicable to original purchasers and starts on the purchase date. It does not extend if the product is repaired or replaced.

The Warranty does not cover damage due to improper use, failure to follow instructions, unauthorized repair, external causes beyond our control, or force majeure events (e.g., fire, earthquake, lightning, water damage).

Process the warranty, please enter this link: Warranty

If you have any questions, please contact us at inquiry@weizeus.com.

Thank you for choosing to shop with us! We prioritize the security and reliability of every transaction, utilizing advanced payment encryption technology to safeguard your information. Additionally, our website is protected by SSL encryption, ensuring that your personal and payment details remain private and secure.

We offer three convenient payment options: PayPal, Credit/Debit Cards, and Affirm Installments. Below are the details of each payment method:

PayPal Payment

PayPal is a trusted, secure, and widely-used payment method for online transactions.

1. With PayPal, you can send payments quickly and securely online.

2. Even if you don’t have a PayPal account, you can still check out by selecting "Pay with Debit/Credit Card." This option will redirect you to a secure PayPal page where you can enter your payment details and complete the transaction safely.

3. If you choose to pay with PayPal, you will be redirected to the PayPal payment page, where you can log in with your PayPal username and password to confirm the payment.

Credit/Debit Card Payment

We accept the following credit and debit cards:

✔ Visa ✔ MasterCard ✔ American Express ✔ Discover ✔ Shop Pay ✔ Google Pay ✔ Apple Pay

Simply enter your card details at checkout, and your payment will be processed securely.

Pay with Affirm (Shop Pay Installments)

For added flexibility, we offer Shop Pay Installments in partnership with Affirm, allowing you to split your purchase into convenient payments.

1. At checkout, select Shop Pay Installments to view your available installment options.

2. Choose the plan that works best for you and complete your purchase with easy, manageable payments.

We strive to provide a safe, seamless, and flexible payment experience for our customers. If you have any questions or need assistance with your payment, feel free to contact our support team. Email: inquiry@weizeus.com

Experience Unparalleled Power - Weize 12V 300Ah LiFePO4 Batteries!
Designed to conquer the test of time, our 12V 300Ah LiFePO4 Batteries redefine endurance, delivering over 2000 cycles at 100% discharge or an astounding 8000 cycles at 50% depth of discharge (Suggested) - all without compromising performance. Witness the difference as a LiFePO4 battery lasts at least 5 times longer than lead-acid counterparts, translating to significant cost savings. With cold weather protection as a critical feature, you can trust our batteries to thrive even in the harshest conditions.
Effortless Power Management - Welcome to the Future:
Embrace the convenience of an Automatic Battery Management System (BMS) that shields your battery from Over Charge, Discharge, Over Current, and Short-Circuiting. Low and High-Temperature protection ensures peak performance and prolonged life for your battery. Experience seamless power management as the BMS automatically cuts off the battery, with reactivation requiring just 1 second without the need for higher voltage input.
Unleash the Possibilities - Lightweight and Versatile:
Discover the potential of lithium's greater energy density, weighing at least 1/2 less than lead-acid batteries. The perfect upgrade for any 12V Deep Cycle battery, our LiFePO4 battery is the best choice for an array of applications. From Fish Finders to Ice Fishing, Camping to Solar Systems, Home Alarm Systems, and E-Scooters - you name it, our battery powers it all. For optimal performance, remember to charge the battery with a dedicated LITHIUM BATTERY CHARGER and avoid connecting more than 4 batteries in series or parallel.
Safety Refined - Empowering the Environment:
Crafted from 100% safe, non-toxic, and non-hazardous energy, the Weize LiFePO4 battery boasts unparalleled chemical stability. Be free from concerns of thermal runaway or overheating, even in the event of a puncture. With no acid involved, you have the freedom to mount the battery in any position, prioritizing both safety and convenience. Before use, simply refer to the user manual and rest assured that our dedicated team is ready to address any battery-related questions.
Confidence in Every Purchase - 10-Year Warranty:
Weize, the unrivaled No.1 battery brand on Amazon, stands proudly behind our newest Lithium Iron Phosphate Batteries with an unbeatable 10-year warranty. Trust in quality as we prioritize your satisfaction and offer unparalleled customer service. Our dedicated Weize support team is eagerly on standby, ready to serve YOU.

Elevate your energy solutions with Weize 12V 300Ah LiFePO4 Batteries, setting a new standard in power, reliability, and efficiency. Embrace a greener future while unlocking limitless possibilities.


Take charge of your power - Trust in Weize, your energy expert.

Customer Reviews

Based on 184 reviews
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K
Kirick
Perfect Upgrade

Bought a boat that had a small flooded cell marine battery and old Minn Kota. Bought the new iPilot and battery. Was leaning toward AGM for the bang for buck, but decided on this lithium as weight is significantly different, and makes a difference in a smaller aluminum boat.After practice days and a full day tournament on the water with the wind blowing 20+, this thing has been incredible. Ran the trolling motor all tournament and it had plenty left when I put the boat on the rack. Can’t speak to longevity yet, but so far it’s been perfect.

G
Geo
Amazing upgrade for a boon docked camper.

So much more power with 2 of these than my 2 6v golf cart batteries. get what you pay for and these are worth the price.

J
Jim F
So far so good

Last time out, I drove around with my trolling motor on high in strong winds for approximately 3.5 hrs. Battery still at 93%. Very impressive.

F
Fred Engel
Very useful battery

These have a Battery management system built in. They are worth the price. High ratings many recharge cycles.

B
Brian
Good battery

I think this is going to be a good battery for the money and fast shipping