29.2V 15A Aluminum Shell LiFePO4 Battery Charger – WattCycle-US

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29.2V 15A Aluminum Shell LiFePO4 Battery Charger

Sale price $139.99 Regular price $259.99
  • Compact & Design: 6.93 X 4.67 X 2.32 inch | 3.85 lbs
  • 4X Protection: Over voltage / Over temperature / Short circuit / Reverse polarity connection Protection
  • LED display for clear charging status
  • 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 (1)

      Customer Reviews

      Based on 1 review
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      j
      john smith
      works as advertised

      works great and stays cool with the cooling fan

      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.

      Compact and Portable Design

      The WattCycle 29.2V 15A Lithium Battery Charger saves space, offers easy installation, and includes wall-mounting capability for added convenience.

      Enhanced Safety Features

      Equipped with over-voltage, over-temperature, short-circuit, and reverse polarity protection to ensure reliable and secure operation.

      LED Indicators for Clear Charging Status

      Easily monitor the charging progress with precise percentage display.

      3-Stage Charging Modes for Efficiency and Longevity

      Features pre-charge, constant current, and constant voltage modes for safe, fast charging while extending the charger's lifespan.

      Simple and Safe Charging

      Carefully follow the straightforward charging steps to ensure efficient and secure operation.

      Perfect Match for 24V Systems

      Specifically designed to charge 24V 100Ah lithium batteries efficiently

      Tech Specs

      SPECIFICATION

      Brand WattCycle
      Model 24V15A
      Input Voltage 100-120Vac50/60Hz
      Output Voltage 29.2V
      Output Current 15A
      Product Size (Inches) 6.93 X 4.67 X 2.32 inch
      Net Weight 3.85lbs / 1.7kg
      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 🟢(Always On Green)
      Charging (<80%) 🔴(Flashing)
      Charging (80%~90%) 🟡(Flashing)
      Charging (90%~100%) 🟢(Flashing)
      Charging Completed 🟢(Always On Green)

      Frequently Asked Questions

      Q1: Is it easy to install?

      A1:
      Yes , it is. You just need to connect the positive and negative terminals of the charger and battery, plug it in and use it.

      Q2: Is it suitable for all LiFePO4 batteries?

      A2:
      This charger is suitable for all sizes of LiFePO4 batteries.

      Q3: Is the charging process safe?

      A3:
      This charger uses the latest sparkless charging technology. At the same time, it has over-current, over-temperature, over-voltage and reverse polarity protection mechanisms.
      When overcharged or overheated, it will cut off power in time.
      During normal use, you don't need to worry about safety issues.

      Q4: Does it have a LED display?

      A4:
      This product does not use a LED display. WattCycle charger is designed with a light-up alert function, blinking red (abnormal status) to activate over-temperature/short-circuit/reverse polarity protection/over-power protection, green color is always on when it's fully charged, and red color is always on when it's charging. You can judge the status of the battery and charger according to the lighted status, and pay attention to whether the battery is full or whether there is any abnormality in time.

      Q5: What is the warranty policy?

      A5:
      From the original date of purchase, this product is covered by a 1-year warranty. Any non-human-made quality issues occurring during the warranty period will be repaired free of charge.

      Based on 2191 reviews
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      10%
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      1%
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      (7)
      No la he probado todavía pero tiene buena

      No la he probado todavía pero tiene buena pinta

      So far working well

      Bought 2 of these Mini 314 batteries and after one month seem to be working well. Two issues, price fluctuates depending which site, time of day, etc and the batteries arrived almost 1 week apart. We were lucking we had the time and flexibility to install them separate, but this is not ideal for anyone using the batteries in the same system.

      Disapointed.

      to [****]

      Hi again, I thank you for the free battery charger in lieu of the free battery charger & free battery as an attempt to fulfill your obligation to your company's Price Matching policy, however I do not find this to be satisfactory for the following reasons.

      As an attempt on my behalf I went ahead and bought the same battery again but this time during your BOGO sale as I was afraid that they would sell out, I did this a day before your first reply back to me in regards to your price matching (bought on 12-01-2025) - (you replied on 12-02-2025) had I known that WattCycle would not honor their "Price Matching Guarantee" OR their BOGO sale I would not have bought the second battery, so now I am out of two yes 2 batteries.

      Due to the miscommunication / misunderstanding on how WattCycle conducts their business with those of us that use our Amazon Credit cards for our transactions with WattCycle I will be returning what WattCycle has sent me, Two batteries, two battery chargers and two small battery monitors instead of the four (4) each that was offered through your online store front Price Matching offer & your BOGO sale.

      I am now glad that I went ahead and paid for the S050 Shipping Protection for $14.98 as now I won't have to pay for their return.

      What upsets me the most though is now it’s too late for me to buy from another company during their sales event along with my disappointment with your companies policies.

      Please understand that all I ask for is what Wattcycle has offered on their web sight, nothing more but nothing less.

      I can not comment on their performance or their durability since I have not used them but I am sure that they are a great product but I can not due business with a company that will not honer what they advertised. Mr. Kelly

      Everything came fast packaged, and delivered professionally I highly recommend

      B
      Shipping Protection
      Brad Cougle
      Not really sure why I got this.

      Don't think I needed this since purchasing in the USA has built in coverage, doesn't it? Happy to have my $20 go to another battery.

      Bardzo lekka jak na razie jest OK sprawdzimy końcowo na wodzie

      Bardzo lekka jak na razie jest OK sprawdzimy końcowo na wodzie .

      Megvagyok elégedve

      Megvagyok elégedve, ez a jövő akkumlátora!

      Bateria 628 Ah

      compre la bateria a mediados de Noviembre, aun no he podido montarla porque el taller no tiene disponibilidad hasta finales de Enero, solo puedo decir que la bateria tiene muy buen aspecto y que el paquete llego dentro del plazo indicado y en buen estado

      Great Product

      Very nice and efficient charger. I purchased in order to charge / maintain my new 100aH WattCycle battery until I can install in RV in the Spring. While my on-board charge controller is Li capable, this is an excellent back-up.

      Lot of energy as expected

      Lot of energy as expected. Ready for next power outage.

      NAGYON JÓL MŰKÖDIK

      NAGYON JÓL MŰKÖDIK.

      It works great without any problem

      It works great without any problem. I like it very much.

      So far so great!

      So far so good.Its been running my Planar D4 heater for 2 days. Still full charge! The only reason for the 4 star is I ordered a 280ah, the battery I was sent says 300ah on the side. Emailed the company about it, have had no response.

      Augment Ecoflow Delta Pro 3 battery storage

      Works wonderfully with the Ecoflow 800 watt alternator charger plugged into a Delta Pro 3.

      Great deal in what appears to be a quality battery! Chargef it up and anxiously awaiting warmer weather to install in RV.

      Even Second-hand batteries from WattCycle are TOP-NOTCH!

      I like using second-hand products, it's part of my "waste-not" way of life. That's why I decided to try out WattCycle's second-hand batteries as an addition to my home's energy storage.

      Got a second-hand 24V 100Ah a week ago and just had the opportunity to test it, using a Victron SmartShunt. The battery charged to 28.4V (which means that it's not 100% balanced) and gave out 100.6Ah of energy, down to 20.0V. Impressive. I will be testing the battery again, after balancing. I would expect it to go over 102Ah.

      Quick delivery and battery works much better

      Quick delivery and battery works much better than 12 volt lead acid equivalent so far

      Great value!

      I use 2 of the 280ah batteries and have been extremely happy with them over the last 1.5 years. I also choose to install the 314ah minis in most of my customers RVs as I own an RV solar installation company. Happy customers!

      Reliable battery

      This Battery has been performing well, would recommend!

      Group 24 Smart 100AH Batteries for Trolling Motor

      Only been out on my boat fishing a few times since I've had these, they have worked great! Way better than bigger, heavier, less efficient lead acid batteries. Hoping these batteries last close to 10 years as advertised, so far so good

      worth considering getting this

      we have all seen how badly some packages get damaged or dropped going thru delivery company's warehouses. The batteries are well build and packed with an inch of medium density foam in a heavy paper carton, but would get damaged if the carton is dropped.

      Like the battery but failed capacity test

      I love the form factor of this battery but unfortunately it failed three capacity tests. Customer service has been great but it still failed. Not by much but was below 100ah

      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.