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43.8V 18A Aluminum Shell LiFePO4 Battery Charger

$16999 $26999
Free Shipping, taxes and discounts calculated at checkout.
  • Compact & Design: 11.06 X 5.04 X 3.35 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.

      Shipping Warehouse:

      • Address: 20533 East Walnut Drive North, Walnut, California 91789
      • Tel: 909 9600600
      • Email: 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.

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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) 11.06 X 5.04 X 3.35 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 524 reviews
      88%
      (463)
      9%
      (49)
      1%
      (7)
      0%
      (1)
      1%
      (4)
      Struggling to get support

      The first time I used it, after charging for a few hours it started cycling on and off every few minutes with the voltage on the battery increasing. When it hit 14.8V I unplugged it since that seemed beyond the battery specs.

      I asked WattCycle support if that was normal and the reply I got was “ We recommend that you can stop charging before it full charged, which can avoid such situation.”. I already have a lead acid charger which can partially charge my lithium batteries - I bought this charger so I can fully charge them when needed

      So, I still do not know if the charger is functioning correctly or not. I would love to change my review if can get a satisfactory answer from WattCycle, but right now I am not happy with this purchase. (WattCycle are you reading these reviews? If so, I would love to be contacted to discuss this further so I can understand if this is normal behavior or if the charger has a problem.)

      Absolutely love these batteries. I already had 3 of the 12v 100Ah for my Ranger Z520 and when I bought my Clubcar I knew I was going with the 12v 50Ah. I dropped 320lbs off my golf cart and I used to have to charge the lead acid batteries every day just to get around my neighborhood. So far the first charge on the WattCycle 12v 50Ah has lasted 4 days!!! I am extremely satisfied with my purchase!!!!

      Runs hot

      Can't beat the price and it's compact but it runs hot. The surface is smooth plastic without vents or fins. Maybe it is fine running hot. I would make sure that as much surface as possible is exposed.

      4 bank charger

      So far so good

      Great battery at a great price

      Very well constructed, packaged, and documented battery.

      Battery

      These batteries are so lite compared to my acid battery,and the trolling motor I can run so much longer and still have enough battery left to fish another day.wow nice😊

      Seem to work well

      I bought these for a rv to replace lead batteries. Pleased so far. Good reserve power now. App is a plus.

      Much small and more powerful battery

      Wattcycle battery with small size and double power. I have test it on my boat, it is much better than old style battery; the charge time is much quick than the old lead battery. Even only having for one week but I love it.

      Great product for the price

      So far it has charged all my batteries as it is supposed to. Easy install and smaller than my minn kota.

      Smashing Smallmouth Bass

      Couldn't be any happier I bought 3 100ah Pro trolling motor batteries and a 4 bank Charger Works Great

      Great battery and excellent service!

      Batteries received quickly and well packaged. Watt Cycle honored a price drop the day after I ordered without hesitation. Communication has been excellent. I requested information regarding the batteries to program my charger isn’t it was answered promptly.
      The batteries are great looking and up to this point perform well. I’m very pleased with my purchase!

      Worked well.

      I purchased this charger to fully charge my 3 new 12v 100ah batteries before hooking them up in series for my golf cart. Did the job quickly.
      Now I have the 36v charger installed that is also working very well.
      Batteries have performed well for the 2 weeks they have been in the cart. Less weight, a tad bit faster and longer run time.
      Happy so far!!

      I’ve purchased. 12v 20ah and a 12v 100ah.Incredible price.US soon.

      Purchased 12v 20 ah and 100ah batteries with BMS. Incredible price. Only negative is it’s made in China

      I would buy again...in 10 years.

      I have purchased at least 4 of these batteries as storage for the 30KW whole-house solar system that I am building and have not had any issues with any of them. I thank Will Prowse for reviewing these batteries on YouTube, which has given me confidence that I had made a great purchase!

      Great battery

      Works great in a DIY solar power box I built.

      Great battery and great customer service.

      We've all been seeing the reviews on YouTube. Well, they are correct, the battery is everything it's cracked up to be. I have purchased 3 Minis so far. I had a question about one and got a response back in less than 24 hours.
      This battery is a great product at an unbelievable price. The Bluetooth model is well worth the money.
      Thanks for the great customer service.

      Awesome

      This charger charges extremely fast. I use it on my two Watt Cylce 100 watt batteries in parallel. I have even used it to charge my batteries while plugged into my 3500 watt generator and it works perfect.

      very good unit

      This battery works very well for what I need it for, I just ordered another one.

      Great customer service

      Ordered 8 of these and was very impressed by the quality. Once I was ready to put them into service I found one battery that would not communicate via bluetooth. Contacted the seller and in short order they sent me a replacement . Excellent customer service.

      I LIKE THE BLUETOOTH

      I LIKE THE BLUETOOTH

      Furnace Power Backup

      I used this battery with an inverter for furnace power backup and testing shows I can get 7-8 hours on very cold days. The battery easily meets it's AH rating and the Bluetooth functionality is great.

      Great battery

      Love the Bluetooth feature and app to see exactly what percentage is left.

      Great light weight long lasting batteries

      So pleased with them !!