WattCycle 40A 12V Battery Charger​ For 12V Lithium Battery​ – Wattcycle-Europe

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    GET 5% OFF YOUR FIRST ORDER: Welcome!
    【👑 3rd Anniversary】WattCycle 14,6V 40A AC-DC LiFePO4 Battery ChargerMultiple protections of WattCycle 14,6V 40A AC-DC LiFePO4 Battery Charger3 charging modes of WattCycle 14,6V 40A AC-DC LiFePO4 Battery ChargerBuilt-in cooling fan of WattCycle 14,6V 40A AC-DC LiFePO4 Battery ChargerLED indicator of WattCycle 14,6V 40A AC-DC LiFePO4 Battery Charger40A ultra fast charging function of WattCycle 14,6V 40A AC-DC LiFePO4 Battery ChargerFast battery charging time of WattCycle 14,6V 40A AC-DC LiFePO4 Battery ChargerWattCycle 14,6V 40A AC-DC LiFePO4 Battery Charger
    【👑 3rd Anniversary】WattCycle 14,6V 40A AC-DC LiFePO4 Battery Charger
    Multiple protections of WattCycle 14,6V 40A AC-DC LiFePO4 Battery Charger
    3 charging modes of WattCycle 14,6V 40A AC-DC LiFePO4 Battery Charger
    Built-in cooling fan of WattCycle 14,6V 40A AC-DC LiFePO4 Battery Charger
    LED indicator of WattCycle 14,6V 40A AC-DC LiFePO4 Battery Charger
    40A ultra fast charging function of WattCycle 14,6V 40A AC-DC LiFePO4 Battery Charger
    Fast battery charging time of WattCycle 14,6V 40A AC-DC LiFePO4 Battery Charger
    WattCycle 14,6V 40A AC-DC LiFePO4 Battery Charger

    【👑 3rd Anniversary】WattCycle 14,6V 40A AC-DC LiFePO4 Battery Charger

    Regular price €165,99 €199,99 | Save €34,00 (17% off)
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    Key Features
    • ✔ L220 x W135 x H70mm, 2.2kg
    • ✔ M8 Terminal, 1.1m DC cable
    • ✔ Suitable for 12V lithium leisure battery
    • ✔ Prevents from over-temperature, short circuit, over-current, over-voltage, and reverse polarity connection
    • ✔ Red and green indicator lights, quickly and easily understand the charging status by different flashing states
    • ✔ Operating temperature: -10°C – 45°C; Storage temperature: -40°C – 75°C

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    Free & Fast Shipping

    Local Poland warehouse, more details in Shipping Policy.


    Hassle-Free Warranty

    Please see our Warranty Policy for more details.


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    Please feel free to contact us via Email (service@wattcycle.com) or WhatsApp(+852 5473 5422).


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    【👑 3rd Anniversary】WattCycle 14,6V 40A AC-DC LiFePO4 Battery Charger

    【👑 3rd Anniversary】WattCycle 14,6V 40A AC-DC LiFePO4 Battery Charger

    【👑 3rd Anniversary】WattCycle 14,6V 40A AC-DC LiFePO4 Battery Charger

    Thanks for choosing WattCycle. At WattCycle, we're committed to your satisfaction with our product(s). We guarantee that all WattCycle products are strictly tested by our quality inspectors before delivery.

    We understand that there may be situations where you need to return or exchange your purchase. The following "Return & Refund Policy" applies to WattCycle products.

    Order Cancellation

    WattCycle accepts order cancellation before the product is shipped or produced. If the order is canceled, you will get a full refund via the original payment method within 10 working days (Due to delays in processing refunds from a bank).

    WattCycle cannot cancel the order if the product has already shipped out.

    Lost / Damaged Products Received

    If the product was not delivered or lost, please immediately contact us. We will inquire about the situation and send you a statement. After you sign and send us the statement, we will re-arrange the shipment of your order.

    If the product you received was damaged, or if you received an incorrect or incomplete product, please immediately contact us with proof of videos or pictures and product serial number (This number is on a sticker on the product, below the barcode.). After providing the above certificates and serial numbers, we will provide you with a solution based on the damaged or missing items.

    30-Days Money-Back Guarantee

    Within 30 days of purchase, if you are unsatisfied with the product and there are no quality issues, you are entitled to a refund upon returning the item in its complete, unused condition with original packaging intact. However, you will be responsible for covering the round-trip costs (including shipping fees and handling charges). Costs vary by country/region. Please contact us to confirm the specific costs..

    If 30 days have passed since the purchase, a full refund cannot be offered.

    Attention: For products that have been used (Unboxing), WattCycle reserves the right to refuse the return.

    Return Shipping Cost

    WattCycle Pays For Return Shipping

    WattCycle will pay for the cost of return shipping if the reason for the return was the result of our error.

    Examples of instances may include:

    Item arrived defective and cannot be fixed with a replacement part.

    We shipped out the wrong item.

    We shipped it to the wrong address.

    We shipped a duplicate order.

    Item malfunctioned during the 30 day returns period. (The customer should install and operate the item properly per the product manual instruction.)

    Attention

    For items that arrive damaged or are defective, the customer MUST provide videos or photos to support the claim that the item arrived damaged or is malfunctioning. If a customer refuses to or fails to provide videos or photos of a claimed malfunctioning/damaged item, this return will be treated as “buyer’s remorse” and the customer is solely responsible for shipping it back. Once we have received the approved returned item, we will review its condition. If the item is found to be defective, we will issue a refund within 3 working days.

    Customer Pays For Return Shipping

    In the case of a return due to customer error, return shipping is the customer’s responsibility and shipping charges are paid by the customer. Fees vary by country, please contact us for specific fees.

    Attention

    Any order offered with special shipping charges is subject to a deduction from our actual outbound shipping costs.

    After the 30-day returns period, customers may use the WattCycle Warranty Policy for repairs if the item is faulty or malfunctioning. Please refer to the WattCycle Warranty Policy for details.

    Return Item & Address

    After confirming with our customer service team that a return is possible, we will provide you with a return solution based on your order's fulfillment warehouse.

    If your order was shipped from a German warehouse, we are unable to provide a return label. You will need to contact our customer service team to obtain the return address and arrange the return yourself.

    If your order was originally shipped from a Polish warehouse, we will provide you with a return label. You simply need to take the product with the return label attached to a courier station to ship it back.

    Return Address: Xixi, Generała Mikołaja Bołtucia 10, Grodzisk Mazowiecki, 05-827, Poland

    Refund

    For non-quality-related issues and unopened packages, you will be responsible for covering the round-trip costs (including shipping fees and handling charges). Costs vary by country/region.

    For quality-related issues reported more than 30 days after the purchase date, WattCycle will provide a partial refund based on the product's usage condition.

    Refund Timeline: Once the product is returned to the WattCycle warehouse, WattCycle will process the refund within 7 business days and send you a refund confirmation notification.

    Refund Method: The refund will be issued to your original payment method and account.

    Attention

    If you do not receive the refund within 10 business days, please contact us, and we will assist you in checking the refund status.

    Disclaimer

    WattCycle does not offer refunds for the following cases:

    Price difference of discount or promotional items.

    WattCycle products purchased through other entities (e.g., distributors or retail partners).

    Returns from a country/region different from the original shipping address of the order. If the return address differs from the original shipping location, resulting in shipping costs exceeding the initial fees, the user will be responsible for covering the additional shipping fees.

    Products showing signs of wear, use, or alterations from their original condition.

    Products damaged or lost during the return process.

    Changes to This Policy

    We reserve the right to modify this Return & Refund 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.

    FREQUENTLY BOUGHT TOGETHER

    €239,99
    €189,99
    €209,99

    TOTAL: €639,97

    Ultra-fast 14,6V 40A LiFePO4 Battery Charger

    WattCycle 40A 12V battery charger has a compact size of L220 x W135 x H70 mm and a lightweight design of 2.20kg. It's equipped with multi-protections: over-temperature protection, short circuit protection, over-current protection, over-voltage protection and reverse polarity connection protection, perfectly used for 12V high capacity lithium battery.​

    WattCycle 14,6V 40A AC-DC LiFePO4 Ultra ast Battery Charger
    WattCycle 14,6V 40A AC-DC LiFePO4 Battery Charger designed for LiFePO4 battery

    Detailed Specifications of 12V 40A Charger

    Comprehensive Safety Protection

    WattCycle 14,6V 40A battery charger offers multiple protection during the charging process, covering over-temperature, short circuit, over-current, over-voltage and reverse polarity connection. These all-round protections provides a safe usage whether you are powering the battery in your camper van or storing energy for your home backup system.

    Real-Time Monitor The Charging State

    External LED indicator helps you check the battery status quickly. It can also provide troubleshooting status when in abnormal status. Red light flash 3 times, pauses, loops means over-voltage protection; red light flash 5 times, pauses, loops means over-heat protection; red light flash 7 times, pauses, loops means short circuit protection; red light keeps flashing means reverse connection.

    Easy Connection And Use

    Just 3 steps to charge the battery. First, connect the charger connector to the battery's M8 terminals, then connect DC cable and the charger, and finally connect the charger to the wall socket.

    PRODUCT DESCRIPTION

    Specialized for LiFePO4 Battery Charging: This 14,6V(12V) 40A charge is specifically designed for 12V LiFePO4 batteries. It supports a smart 3-stage charging process: pre-charge, constant current charging, and constant voltage charging, ensuring optimal battery performance and longevity.

    Compact, Lightweight Yet Powerful: With the compact dimensions of L220 x W135 x H70mm and a weight of just 2.2kg, it's easy to carry and makes it highly portable for outdoor and off-grid applications.

    Built-in Cooling Fan: The built-in cooling fan can reduce the possibility of the charger overheating during use, making it safer.

    Clear & Simple LED Indicators: The charger features a concise LED indicator system that makes it easy to monitor battery charging status at a glance. Whether the battery is charging or fully charged, you can quickly and accurately check the battery status by checking the LED signals.

    Battery Activation Function: For LiFePO4 batteries which trigger BMS protection, this lithium battery charger can help reactivate the battery, restoring battery voltage and reinitiating the charging process safely.

    Comprehensive Safety Protection: Equipped with 5 essential protection features: over-temperature protection, short circuit protection, over-current protection, over-voltage protection and reverse polarity connection protection. This 12V battery charger ensures reliable and safe operation.

    Easy One-step to Use: Designed for user convenience, the charger features a plug-and-play connector, allowing quick and stable connections to your lithium battery with minimal setup.

    Versatile for Various Applications: Whether you're powering a camper van, marine boats, mobility scooter, DIY portable power station, off-grid solar system, or home energy storage setup, this charger delivers fast and dependable performance for your lithium battery needs.

    TECH SPECIFICATIONS

    • Input Voltage 100V - 240V AC, 50Hz / 60Hz
    • Output Voltage 14.6V
    • Nominal Charging Current 40A
    • Relative Humidity 5% - 95%
    • Atmospheric Pressure 70kPa - 106kPa
    • Operating Temperature -10℃ - 45℃
    • Storage Temperature -40℃ - 75℃
    • Battery Charger Size L220 x W135 x H70mm
    • Weight 2.20kg
    • Warranty 3 Years
    • Certification CE-EMC, CE-ROHS, CE-LVD

    FAQ's

    How do I connect a battery charger?

    Through simple plug-and-play, the connection between the lithium battery and the WattCycle 12V 20A battery charger with the Anderson terminal is quickly established. The red Anderson connection cable of the charger is connected to the positive terminal of the battery (the red terminal of the WattCycle LiFePO4 battery), and the black Anderson connection cable is connected to the negative terminal of the battery (the black terminal of the WattCycle battery).

    What does the battery charger indicate?

    The WattCycle 12V 20A battery charger has an LED display that informs you about the charging status through the color and status of the indicator. If the display stays green, it means that the charging process is complete or no lithium battery is connected. If the display stays red, the battery is being charged. If the red light on the display blinks, there is an issue with the charging process.

    How does a lithium battery charger work?

    The WattCycle 12V 20A battery charger is designed for 12V lithium batteries, assuming a 3-stage charging mode (pre-charge phase, constant current phase, and constant voltage phase).

    Can this charger reactivate a lithium battery that has triggered the BMS protection?

    Yes, the WattCycle 12V 20A battery charger has an activation function for lithium batteries. In the case of BMS protection, the LiFePO4 charger can reactivate the LiFePO4 battery and restore the normal voltage.

    Can you leave a battery charger connected to the battery?

    WattCycle recommends disconnecting the charger from the battery or unplugging the charger from the power outlet once the battery is fully charged.

    Why This Matters:

    • Overcharge Protection Trigger: Even with the Battery Management System (BMS) safeguards, leaving the charger connected indefinitely may cause the BMS to repeatedly activate overcharge protection. Frequent triggering of BMS protections can stress the system over time, leading to degraded performance or permanent damage.
    • Battery Longevity: Prolonged charging at 100% SOC (State of Charge) can accelerate cell aging. Disconnecting the charger helps maintain optimal battery health and extends its lifespan.
    Do I have to buy a special charger for LiFePO4 batteries?

    We recommend using a WattCycle LiFePO4 battery charger, which is specifically designed to meet the unique charging needs of LiFePO4 batteries. Alternatively, you can also charge the battery using photovoltaic solar panels through MPPT or use an inverter with a built-in AC to DC charging function.

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