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WEIZE 12V 100Ah Group 31 Bluetooth LiFePO4 Battery, Low Temp Protection for Trolling Motors, RV, Marine & Solar

$399.99 $279.99 Save 30%

• Multi-Scenario Deep-Cycle Power:Built for trolling motors, RV house power, marine electronics, solar storage, camping, and off-grid use.

• Bluetooth Monitoring: Track SOC, voltage, current, temperature, and battery status in real time from your phone.

Group 31 Drop-In Fit: Standard BCI Group 31 size, 13 × 6.9 × 8.8 in, fits many common battery compartments.

• 100A Smart BMS: Built-in protection against overcharge, over-discharge, overcurrent, short circuit, and overheating.

Low-Temp Protection: Charging cut-off in cold weather helps protect the battery for safer outdoor use.

1280Wh Usable Energy: Provides dependable power for trolling motors, RV appliances, marine electronics, solar systems, and off-grid setups.

4 Charging Options: Recharge by LiFePO4 charger, solar panel, alternator/DC-DC charger, or generator.

IP65 Rated: Waterproof and dust-resistant design built for marine, camping, RV, and outdoor environments.

• Expandable 4S4P: Build up to a 51.2V 400Ah battery system with a maximum of 20.48kWh.

• Long Cycle Life: 4000+ cycles at 100% DOD, up to 8000 cycles at 50% DOD, backed by a 10-year warranty.

• Certified for Reliable Use: FCC, CE, RoHS, and UN38.3 certified.

• Note:For Energy Storage Only, Not for Engine Starting

BAC-0133VWEI
Model: Group 31 Bluetooth

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, WEIZE 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

Power Your Adventures With Smart Lithium Energy

WEIZE 12V 100Ah Group 31 LiFePO4 Battery delivers reliable, long-lasting, and expandable deep-cycle power with Bluetooth monitoring and low-temp protection.

Smart Power For Every Adventure

WEIZE 12V 100Ah Group 31 LiFePO4 Battery delivers reliable deep-cycle energy with Bluetooth monitoring, low-temp protection, and expandable 4S4P configuration for trolling motors, RVs, marine electronics, and solar applications.

Smart Battery Control At Your Fingertips

Monitor and manage your WEIZE 12V 100Ah LiFePO4 Battery in real time with Bluetooth connectivity. Stay in control anytime, anywhere.

Swap In, Power Up — No Hassle Replacement

Upgrade your marine or RV battery system effortlessly with 1280Wh deep-cycle energy, advanced BMS protection, and low-temp safety.

Experience The Power Revolution — Go Lithium Today

Switch to WEIZE 12V 100Ah LiFePO4 Battery for ultra-lightweight, maintenance-free, and long-lasting energy that outperforms traditional lead-acid batteries

Built For Trolling Motors And Adventures On The Water

Experience reliable, long-lasting lithium power with WEIZE 12V 100Ah Group 31 LiFePO4 Battery — featuring Bluetooth monitoring, 100A BMS protection, IP65 waterproofing, and low-temp cut-off for safe, worry-free fishing, boating, and off-grid trips.

1280Wh Power For Every Adventure

WEIZE 12V 100Ah Group 31 LiFePO4 Battery delivers reliable deep-cycle power for trolling motors, RV appliances, marine electronics, CPAP devices, mini fridges, LED lights, and phone charging.

Smart Safety. Total Peace Of Mind.

Advanced 100A BMS, low-temperature protection, and IP65 waterproofing ensure reliable, safe, and worry-free power for all your adventures.

4 Easy Ways To Keep Your Battery Powered

Recharge anytime, anywhere — using a LiFePO4 charger, solar panel + controller, generator, or alternator + DC-DC charger for ultimate convenience.

Expand Your Power. Unleash Possibilities.

Build a high-capacity energy system with up to 16 batteries in a 4S4P setup, delivering 51.2V, 400Ah, and 20.48kWh of deep-cycle power for RV, off-grid, and solar applications.

Power Your Lifestyle, Anywhere You Go

From trolling motors and boats to RVs, solar setups, and off-grid living, WEIZE 12V 100Ah LiFePO4 Battery delivers reliable, long-lasting deep-cycle power for every adventure.

10-Year Peace of Mind Guaranteed

Premium LiFePO4 engineering with certified quality and dedicated support ensures your battery performs reliably for years.

Specifications

LiFePO4 Cell Type
4000 cycles @ 25%, 0.2C, 100% DOD Cycle Life
12.8V Nominal Voltage
100Ah Rated Capacity
1280Wh Energy
4P4S Max. Expansion (Parallel & Series)
≤40 mΩ Internal Resistance
Yes Bluetooth
10Years Warranty
100A BMS Rating
1280W Max Continuous Output Power
100A Max Continuous Charge Current
100A Max Continuous Discharge Current:
500A (3s) / 300A (5s) Peak Discharge Current
CC/CV Charge Method:
14.6V (3.65V/Cell) Charge Voltage:
20A Recommended Charge Current
0°C to 50°C / 32°F to 122°F Charge Temperature
-20°C to 60°C / -4°F to 140°F Discharge Temperature
-10°C to 50°C / 14°F to 122°F Storage Temperature
Automatic cut-off at 0°C / 32°F Low-Temperature Protection:
Resumes at 5°C / 41° FLow-Temperature Charge Auto-Recovery
M8 bolts Terminals
24.7 lbs Weight
13 × 6.8 × 8.8 in Dimensions
8.78 in Terminal Height
ABS Housing Material
IP65 Protection Class

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.

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