43.8V 18A Aluminum Shell LiFePO4 Battery Charger – WattCycle-US

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43.8V 18A Aluminum Shell LiFePO4 Battery Charger

Sale price $169.99 Regular price $269.99
  • Compact & Design: 6.65 x 4.17 x 4.34 inch | 6.94 lbs
  • 4X Protection: Over voltage / Over temperature / Short circuit / Reverse polarity connection Protection
  • 3 Charging Modes for efficiency and longevity
  • Wall Mountable and convenient installation

FAQs

Making the switch to LiFePO4 shouldn't be a solo mission. At WattCycle, our dedicated team of engineers and battery experts are just a phone call or email away, ready to answer your questions and guide your lithium journey.

      User Manual

      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.

      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.

      Description

      Maintenance & User Precautions

      • Before charging, carefully review the battery's user manual to ensure its compatibility with the charger's technical specifications.
      • Ensure that the charger's positive and negative terminals are correctly connected to the corresponding terminals of the battery (positive to positive, negative to negative).
      • During the charging process, ensure that the input/output connectors are securely attached.
      • lf any abnormalities or damage to the charger or battery are noticed during the charging process, immediately disconnect the input/output cables.
      • If using alternative input cables, ensure that the cable can handle the charger's maximum input current and that the charger's input voltage is within its operating range.
      • lf an extension for the output connection is needed, ensure that the connection cable can handle the charger's maximum output current, and the voltage drop between the charger and the battery connection should be kept as low as possible. ideally less than 1% of the battery voltage, Otherwise, it may affect the charging effectiveness.
      • The internal voltage of the charger is high and poses a significant risk .In case of any defects, please contact service@wattcycle.com promptly. Users and non-professional repair personnel are prohibited from disassembling or modifying this product without authorization.
      • Do not use the charger during thunderstorms or lightning storms.
      • Keep the charger body dry and avoid using it in damp or rainy environments.
      • Avoid using the charger in direct sunlight or near heat sources.
      • Do not use the charger in or near flammable or explosive gas areas.
      • Use the charger in a well-ventilated and dust-free area.
      • Do not cover the ventilation ports and leave at least 10 centimeters of space around them.
      • Avoid shaking, impacting or throwing the charger with force.

      Reviews (0)

      Customer Reviews

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      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.

      36V 18A Battery Charger – Premium Charging Performance

      Experience top-tier charging with the WattCycle 36V 18A LiFePO4 Battery Charger. Designed for efficiency and reliability, it’s the perfect companion for your 36V lithium batteries.

      Built to Last: Durable Aluminum Shell Design

      Featuring a rugged aluminum shell, this charger is built to withstand harsh conditions, ensuring long-lasting performance and protection.

      Advanced Safety Protections for Peace of Mind

      Equipped with overcharge, overcurrent, and short-circuit protection, this charger ensures safe and reliable charging every time.

      Optimized for EZGO TXT

       Designed to meet the charging needs of EZGO TXT golf carts.

      Compact & Portable: Perfect for On-the-Go Charging

      With its lightweight and compact design, this charger is easy to carry and store, making it ideal for travel or everyday use.

      Tech Specs

      SPECIFICATION

      Brand WattCycle
      Model 36V18A
      Input Voltage 100-240Vac50/60Hz
      Output Voltage 43.8V
      Output Current 18A
      Product Size (Inches) 6.65 x 4.17 x 4.34 inch
      Net Weight 6.94lbs / 3.15kg
      Relative Humidity 5%~95%
      Atmospheric Pressure 70KPa to 106KPa
      Temperature Range In operation: -10°C to 45°C/14°F to 113°F
      In storage: -40°C to 75°C/-40°F to 167°F

      CHARGING MODE

      Waiting Mode 🟢(Flashing)
      Charging (<80%) 🔴(Flashing)
      Charging (>80%) 🟡(Flashing)
      Charging Completed 🟢(Always On Green)
      Based on 1948 reviews
      89%
      (1731)
      10%
      (196)
      1%
      (12)
      0%
      (4)
      0%
      (5)
      Getting ready for the life in the wild

      Getting ready for the life in the wild. Everything working and looks great for now! App shows the state of the batteries and voltage for each battery cell.

      Thank you very much for the battery

      Thank you very much for the battery. I put it on the boat to start the outboard motor and took out a heavy battery. I hope this energy it puts out will last like it does now that it is new

      Off grid

      Been really busy can't wait to setup my second off grid battery system

      I have had excellent service from WattCycle customer support so far

      I have had excellent service from WattCycle customer support so far. They have been responsive and addressed all my inquiries in very short time.

      My battery arrived shortly after I ordered it and the packaging was great.

      I do not plan to install the battery before May 2026.
      I will report back on the battery itself after a full summer of heavy use.
      In the mean time, it is stored properly and I make sure the state of charge stays in a safe zone till next summer.

      No Issues

      No issues with shipping so did not have to use it. I was not a fan that it was automatically added to my order and I paid for it without noticing.

      Great customer service

      Have a Great piece of mind with their customer service. Battery works great on fishing electronics.

      E
      Shipping Protection
      Emile Benoit

      Recieved battery in good condition. Charged and installed works great in my RV.

      Great Purchasing Decision

      I bought this battery to build an array with one brand, that I could afford. The company, battery, and experience went well. I ran into a unique event while using it and the service department sprang into action to quell my concern. I learned there was no issue. The battery was functioning normally.

      i thought all new batteries had Bluetooth

      i thought all new batteries had Bluetooth, other wise its great.

      It doesn't show recharging power if batteries are under charging

      It doesn't show recharging power if batteries are under charging

      Zatim neodzkouseno

      Zatim neodzkouseno, ale vypadají dobře.

      A very nice and well presented battery. Very happy!

      Very nice product. Bluetooth connection is a nice idea. Also having the charge and discharge circuits controlable is also a good idea. A quick note onthe app used on thephone. it connects well and provides data on the current battery operation and conditions.
      I would like to see some sdditional functions please;

      Suggested features for app and battery software.

      A. Data logging
      Include logging of battery temerature, voltage, current and power. Logged data to be time stamped with charge, discharge events logged

      B. Alarm and Warnings
      Include function to log alarm and warning events. include battery conditions (voltage, current, temperature and operational mode).include time of the event occuring
      I am very very happy with my batteries. They work very well. Thank you

      I would be happy to discuss the above feature additions with you.

      Nog nicht benutzt

      Nog nicht benutzt, nur eingebaut aber erster Eindruck ist gut

      Great product and good support, they live up to their word!

      The 4) 12V 628AH batteries I purchased came in good time and the price was very fair! If I had one wish it would be for the distance of the Bluetooth connectivity to be longer. Had one with a little dent and they made it right and updated their packaging to make sure it doesn't happen to others. So far I've gotten better support from Wat Cycle than any other vendor, they actually answer questions and work with you on issues!

      All charged up

      I purchased the 14.6V 20A Aluminum Shell LiFePO4 Battery Charger when I purchased two 100AH Mini batteries. I chose the aluminum shell for better heat dissipation since I live in the Southwest. Upon receiving the batteries and charger I put the charger to work fully charging the new batteries. The charger worked flawlessly and quickly charged the batteries. This is my second WattCycle battery charger, I also have a 60 amp charger that I use for my 300AH batteries. That are both very well built efficient chargers.

      Absolutely the BEST Batteries!

      I purchased two of these batteries for our travel trailer earlier this year along with an upgraded converter to match the LiFePO4 charging profile. They replaced two aging Group 24 lead acid deep cycle batteries. They ran perfectly the entire season between solar and generator charging. The weight savings itself is incredible. BT is such an awesome feature to be able to check individual cell voltage and balancing. With the new parallel function on the app, both discharge at the same rate. I can't say enough good things about these batteries.

      Works like my other new WattCycle batteries!

      I ordered a 12v 100Ah Bluetooth Mini like the other two that I have. It charged up just great and ran a water pump for a while yesterday. So far so good. The only issue I have is that the firmware on this battery will not allow me to use GoKWh or BMS Meta like the other two will. Until the WattCycle app shows total cycles, there is no way to check this value other than the two alternative apps.

      Great Batteries But.........

      I love these batteries. I replaced 10 100Ah 12V batteries in series/parallel. If you have a 24V system, I highly recommend that you go with a native 24V battery.

      The only hiccup at this point is that there is no way to parallel these batteries (software), so sometimes the batteries will discharge at a slightly different rate. Tech support is working on this, and a software/firmware fix is promised soon.

      I do professional Battery/solar system installations in RVs and have seen quite a few batteries through the years, and the build quality of these batteries is definitely top-notch!

      The 12 V 628 AMP hour battery is performing well.

      It has been in operation now for 6 days.
      We are happy with this product.
      We are suppliers and installers of off-grid solar systems and Wattcycle is now on our supplier list.
      We just bought a second battery!

      Great battery

      Using the 100 ah battery on a 36 lb thrust trolling motor on a kayak. Ran all day fishing + still came back with 80%. Great to know I can always make it back home.

      T
      Shipping Protection
      Thor Powell
      Seems to be a good

      Seems to be a good option