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WattCycle 12V 12Ah LiFePO4 Battery

$4999 $6999
Free Shipping, taxes and discounts calculated at checkout.
  • EV Grade A+ Cells
  • IP65 Water & Dust-proof
  • 153.6W Energy
  • Low-temp Protection
  • Max.4S4P Connection

Features
  • Compact: 5.94 x 3.89 x 3.93 Inches
  • Safe: Low-temperature cut-off protection
  • Premium: EV grade A+ LiFePO4 cells
  • Durable: 5,000-15,000 deep discharge cycles
  • Reliable: Built-in 12A BMS | 156.3W | 156.3Wh
  • Scalable: Expandable max 4S4P, up to 2.45kWh
  • Waterproof: IP65
  • Certification: SDS/UN38.3/FCC/CE/ROHS/UL

User Manual

📄 12V 12Ah User Manual.PDF

Shipping Service

Destinations:

  • We only ship orders toContinental 
  • Currently we DO NOT ship to Alaska, Hawaii, and Puerto Rico.

Shipping Fee:

  • FREE shipping on all orders
  • Shipping method: UPS Ground

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.

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.

1. For the battery >50Ah, the warranty period is 5+2 years.(Extra 2 years warranty service is only for customers of official website.)
2. For the battery ≤50Ah, the warranty period is 3 years.
3. For the battery charger, the warranty period is 2 years.
4. For other battery chargers, the warranty period is 1 year.

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 support.us@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.

Compact Power Solution

Reliable Energy Storage for Small-Scale Applications and Portable Devices

Description
  • Eco-friendly Innovation: The LiFePO4 battery, made from advanced lithium-ion material, offers a safer and more environmentally friendly alternative to traditional lead-acid batteries, free from heavy metals.
  • High-Performance Power: The 12V battery encased with EV grade A+ cells boasts high energy density, long cycle life, excellent safety, and zero harmful hydrogen gas emissions.
  • Enhanced Charging Efficiency: The lithium battery supports fast and solar charging through an RV's solar panel with the proper controller or inverter. Its advanced design boosts charging efficiency by 15% over traditional lead-acid and standard lithium batteries, ensuring reliable power outdoors.
  • Durable and Water-Resistant: The WattCycle LiFePO4 battery features a compact, IP65-rated case made of non-conductive ABS plastic, offering excellent resistance to impact, shock, chemicals, and heat. The insulation ensures no electrical leakage, allowing safe use even in rainy conditions—just keep the poles dry.
  • Scalable Battery:  The WattCycle LiFePO4 12V battery supports series and parallel connections, allowing for increased capacity and voltage. For optimal performance, use identical batteries purchased within six months, with up to four batteries connectable.
  • Comprehensive Protection:  This advanced system provides eight layers of protection, including safeguards against overcharging, over-discharging, overcurrent, overload, low temperatures, high temperatures, short circuits and ensures cell balancing.
  • Reliable Service::  WattCycle batteries provide 3 years of free warranty service and lifetime technical support. For any questions or issues, our dedicated team is ready to assist.

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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.

Smaller, More Portable in Daily Use

Grade A+ Cells & 12A BMS

Guarantee Your Safe LiFePO4 Adventures

Why Lithium Is A Better Choice?

Safeguard of Your House

More Applications

Tech Specs

GENERAL

Dimensions (Inches) 5.94 (L) x 3.89  (W) x3.93 (H) 
Weight 2.22lbs / 1kg
Waterproof Rating IP65
Warranty 5 years
Housing Material ABS (Flame Retardant Plastic)
Terminal M8 bolts

BATTERY

Cell EV Grade A+ LiFePO4 Cells
Nominal Voltage 12.8V
Nominal/Usable Capability 12Ah
Energy 153.6Wh
Cycle Life 5,000 cycles @100% DOD, 6,000 cycles @60% DOD, 15,000 cycles @40% DOD
Max Depth of Discharge (DOD) 100%
Max. Expansion 4S4P
Certifications SDS/UN38.3/FCC/CE/ROHS/UL
Internal Resistance ≤40mΩ

BMS

BMS 12A
Max. Continuous Output Power 153.6W
Max. Continuous Charge Current 12A
Max. Continuous Discharge Current 12A

CHARGE

Charge Voltage 14.6V ± 0.2V
Charge Method CC/CV
Recommend Charge Current 10A
Charge Temperature 0℃ to 50℃ / 32℉ to 131℉
Discharge Temperature： -20℃ to 55℃ / -4℉ to 131℉
Storage Temperature 0℃ to 55℃ / 32℉ to 131℉
Low-Temperature Protection Yes (32℉/0℃)
Low-Temperature Charging Protection Auto Recovery Yes (41℉/5℃)

Frequently Asked Questions

Q1：Can I use it under the low-temperature environment?

A1：
Yes, you can.
It is equipped with a built-in 12A Battery Management System (12A BMS) that includes low-temperature cut-off protection. This feature prevents charging or discharging when the internal temperature falls below a certain threshold, protecting the battery from damage and ensuring safe operation in cold environments.

Minimum Discharge Temperature: -4°F (-20°C)
Maximum Discharge Temperature: 158°F (70°C)

Q2：What is the maximum number of WattCycle 12V 12Ah LiFePO4 batteries connected in series or parallel?

A2：
The maximum number of the LiFePO4 battery that can be connected in series or parallel depends on various factors,
such as the specific application requirements, the capacity of the battery management system (BMS), and the limitations of the charging and discharging systems.
Generally, batteries can be connected in series to increase voltage or in parallel to increase capacity.

As for the WattCycle 12V 12Ah LiFePO4 Battery, you can connect up to four in series or/and parallel configurations (denoted as 4S or/and 4P). This allows you to increase the voltage (series) or capacity (parallel) of your battery system to meet your specific needs.

Q3: Can it charge for my mobile phone?

A3：
Yes, you can.
The battery can charge phones. In fact, most modern phones use LiFePO4 batteries as their primary power source. You can use a charger or an external power bank (such as a portable charger) to charge your phone, which are typically powered by LiFePO4 batteries as well.

Q4: Is it recommended for purchasing for my child's toy car?

A4：
Yes, it is a suitable choice for powering your child's toy car.
It offers a good balance of voltage and capacity, providing sufficient power for extended playtime.
Additionally, lithium batteries are lightweight, durable, and offer longer lifespan compared to traditional lead-acid batteries, making them a reliable option for powering toy cars.
However, please ensure compatibility with your specific toy car model and consider safety precautions while handling and charging the battery.

Q5：Can I drop it away after I use it?

A5：
LiFePO4 batteries are recyclable. Used LiFePO4 batteries can be processed through specialized recycling systems, where useful materials can be recycled and reused, reducing the need for original resources.

In order to meet the needs of environmental protection, we strongly recommend that you correctly recycle used LiFePO4 batteries.

Q6：Are there any risks of leakage from it?

A6：
LiFePO4 batteries usually do not leak during normal use and proper handling. The main reasons are as follows:

1) Closed design:LiFePO4 batteries usually adopt a closed design, and the internal chemicals are sealed in the battery casing and will not come into direct contact with the environment. This prevents harmful substances in the battery from leaking or spilling.

2) High stability: LiFePO4 batteries have good chemical stability and will not produce volatile organic compounds or harmful gases during normal use. This reduces the battery’s negative impact on the environment.

Q7：Does the battery get hot during the charging?

A7：
Yes, it will get hot during charging. This is because when charging, the current passing through the battery causes an internal chemical reaction in which some of the energy is converted into heat. This internal reaction causes the battery to generate heat, so the surface of the battery will feel warm and sometimes even become hot.

The amount of heat generated depends on a variety of factors, including the battery's charging rate, charger design, ambient temperature, and the condition of the battery (for example, whether the battery is over-discharged). Under normal use conditions, moderate heat is normal, but if the battery is abnormally hot, it may indicate a problem that requires inspection and treatment.

Q8：I usually charge my battery at night. Will charging it overnight damage the battery?

A8：
Charging it overnight will usually not damage the battery, provided you are using a suitably designed charger and the battery itself is in good condition.

At the same time, our battery is installed with 12A BMS.
BMS monitors the voltage of the battery, and once it detects that the voltage reaches the preset overcharge threshold, it will take measures to stop charging. This is usually accomplished by cutting off the charging current or sending a signal to the charger to stop charging. This prevents the battery from continuing to receive charging and causing the voltage to exceed the safe range, thereby avoiding overcharging.

However, charging for a long time may increase the temperature of the battery, which may have a certain impact on the battery life.
To maximize the life of your battery, it is recommended to follow the charging recommendations and to regularly check the status of your battery.
If you are concerned about the safety or longevity of your battery, consider using a smart charger with an auto-stop function, as well as regular battery inspection and maintenance.

Q9：Can it power kayaks?

A9：
The battery may not be enough to provide sustained power support for a large kayak. Typically, larger kayaks require larger capacity and higher wattage power sources to provide adequate power. It is recommended to select a battery with appropriate capacity and power based on the size, weight and usage needs of the kayak.

Q10：How long can it last after a full charge?

A10：
The battery capacity means it can deliver 12 ampere hours (Ah) of power under ideal conditions. The duration depends on the power requirements of the connected device. In general, the following formula can be used to estimate the battery's duration:

Duration (Hours) = Battery Capacity (Ah) / Device Power (in Watts, W)

For example, if the device has a power of 60W, then:

Duration (hours) = 12Ah / 60W = 0.2 hours = 12 minutes

This is an estimate under ideal circumstances. In actual use, the battery duration may be affected by various factors, such as temperature, usage environment, equipment efficiency, etc.