WEIZE

WEIZE BCI Group 31M Dual Purpose AGM Battery, 240RC 825CCA 12V 110AH Starter & Deep Cycle Sealed Marine & RV Battery

$299.99 $249.99 Save 17%
Quick Features
🔸 Explore the features and specifications below.
BAD-1555
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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

WEIZE BCI Group 31M 12V 110AH Dual Purpose AGM Battery
Item Group 31M Battery Nominal Voltage & Rated Capacity 12V 110Ah
Dimensions 6.81"D x 12.99"W x 8.35"H Item Weight 67.47 Pounds
Terminal DT, SAE/M8 Stud, SAE/M8 Threaded Post, WNT Vehicle Service Type Boat/RV
Cold Cranking Amps (CCA) @0℉(-18℃) 825A Marine Cranking Amps (MCA) @32℉(0℃) 1000A
Case ABS Material Warranty 2-year

[DUAL PURPOSE POWER]
The WEIZE Group 31M is a sealed AGM dual-purpose battery, built for both starting and deep cycle applications. Whether you're powering your boat or RV, it delivers strong cranking amps and long-lasting energy for all your adventures.
🔋 Terminal Layout: Left – Positive (+, Red) / Right – Negative (–, Black)

[RELIABLE HIGH PERFORMANCE]
Engineered with advanced AGM technology, this battery offers low internal resistance for high output and extended performance. It provides twice the cycle life of traditional flooded marine batteries, giving you long-term dependability you can count on.

[FAST & EFFICIENT CHARGING]
Get back on the road or water faster. The WEIZE 31M charges up to 5x faster than standard batteries. For optimal performance, charge using a constant voltage of 14.4 ± 0.1V and a maximum current of 21A. Charge until current stabilizes for 2–3 hours. Do not exceed 24 hours of charging time.

[MAINTENANCE-FREE & DURABLE]
This battery is virtually maintenance-free, with an AGM sealed design that resists corrosion and withstands tough conditions. It offers 20x more vibration resistance than conventional flooded batteries, making it ideal for marine, off-road, and RV use.

[SAFE & GUARANTEED]
With its leak-proof, valve-regulated construction, the WEIZE Group 31M ensures safety and long service life. Backed by a 2-year warranty and supported by WEIZE’s responsive customer service.

Dual-Purpose vs. Deep-Cycle Batteries

Why choose between starting power and deep-cycle performance when you can have both? Dual-purpose AGM batteries are engineered to start your engine and power onboard electronics and accessories—all in one unit. Ideal for boats and RVs, they simplify your power system without compromising performance.

Dual Functionality: Combines the high cranking power of a starting battery with the long-lasting energy of a deep-cycle battery.
AGM Technology Advantage: Absorbent Glass Mat (AGM) design offers 20x more vibration resistance and 2x the cycle life compared to traditional flooded marine batteries.
Rugged & Reliable: Designed to withstand shock, vibration, and harsh environments, making it ideal for off-road and marine conditions.
Built for Accessories: Provides steady and reliable power for all your RV appliances, boat electronics, and auxiliary systems.

Whether you’re starting your engine or running your gear, AGM dual-purpose batteries deliver durability, versatility, and lasting performance.

AGM Battery Charging Guidelines

To maintain performance and extend the life of your AGM battery, follow these best practices:

🤔 When to Recharge
• Recharge your AGM battery as soon as the voltage drops to 12.7V to keep it at optimal performance.
• Storage Life: At 25°C (77°F), the battery can be stored for up to 6 months without charging.
• If stored for longer than 6 months, the battery must be fully recharged before use.
Charging Method
• Use a constant voltage of 14.4 ± 0.1V.
• Maximum charging current should be 0.2 × C₂₀ (rated capacity).
For example: If the battery is rated at 110Ah, the maximum charging current is 21A.
• Charge until the current stabilizes for 2 to 3 hours.
• ⚠️ Do not exceed 24 hours of continuous charging.

Following these guidelines ensures your AGM battery remains safe, efficient, and long-lasting.

Customer Reviews

Based on 35 reviews
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c
charles turner
So Far So Good

Service was good, nicely packaged. I cannot rate the battery yet, I mean, give me this survey a year from now and I’ll telly you more.

T
Ted Velau
Group 31 dual purpose battery

So far so good. Starting a 225 hp outboard and running 3 sonars.

P
Paul Konz
Fast delivery

The delivery was much quicker than expected
The batteries were full charged when received.
I have installed the batteries in my RV and everything seems great.
I will fallow up after my first trip

S
Sam
Works excellent in enclosed areas without

Maintenance free and no hazardous fumes excellent performance for the fraction of the price the only downside is it could use a rigid handle

f
fitnessguy
Can power my pop up camper furnace fan and lights for an entire weekend

This battery was recommended for campers on a budget. So far no problems with it being defective on delivery. I use a smart charger that automatically stops charging when it detects my battery is full. Only time will tell how many years it will last. Ive read you should never let it get below 50% capacity or else risk shortening its lifespan. Im happy with this purchase.

WEIZE Powering Your Drive, Tools, and Life.

WEIZE delivers dependable performance across every corner of your life. From high-quality batteries and automotive tools to rugged car lifts and outdoor equipment, WEIZE is your trusted source for reliable power and durable solutions. Whether you're working on your vehicle, upgrading your workshop, or taking on outdoor projects, we’ve got you covered — all with fast shipping and competitive prices. Choose WEIZE for strength, value, and peace of mind.

FAST, FREE DELIVERY

PAY WITH EASE

HASSLE-FREE WARRANTY

30-DAY MONEY-BACK GUARANTEE

Built to Power. Made to Last.

Discover how customers power their lives with WEIZE.