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WattCycle 12V 8Ah LiFePO4 Battery

$3999 $5999
Free Shipping, taxes and discounts calculated at checkout.
  • Compact: 5.94 x 2.59 x 3.77 inches | 2.22 lbs
  • Safe: Low-temperature cut-off protection
  • Premium: EV grade A+ LiFePO4 cells
  • Durable: 5,000-15,000 deep discharge cycles
  • Reliable: Built-in 8A BMS | 102.4W | 102.4Wh
  • Scalable: Expandable max 4S4P up, to 1.53kWh
  • Waterproof: IP65
  • Certification: SDS/UN38.3/FCC/CE/ROHS/UL

User Manual

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.

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Efficient Power Source

Versatile Energy Solution for a Wide Range of Applications

Description

  • Safe & Environmentally friendly: Compared to traditional lead-acid batteries, this lithium battery is crafted from premium A+ lithium-ion cells. It’s free of heavy metals, offering a safer and more environmentally friendly option.
  • Superior Product Performance: The 12V battery offers superior energy density, extended cycle life, enhanced safety, and emits no harmful hydrogen gas.
  • Enhanced Internal Structure: The lithium battery features a square battery assembly with a new, compact structural design. This optimization enhances the efficiency of the battery cells and ensures consistent, reliable performance, eliminating the risk of unexpected power outages during use.
  • Compact Powerhouse: Compared to traditional large batteries, our deep cycle lithium battery is exceptionally compact and lightweight, measuring just 5.9x2.5x3.7 inches and weighing only 2.2 lbs. This design significantly saves space and simplifies installation.
  • IP65-rated Resistance: The battery is housed in a compact, IP65-rated case, offering superior dust and water resistance. Crafted from high-impact, non-conductive ABS plastic, the case is highly resistant to shock, chemicals, and heat, ensuring safe and durable performance.
  • Enhanced Insulation: The insulating material prevents electrical leakage, allowing the battery to operate reliably even in rainy conditions. However, it's essential to keep the battery poles dry.
  • Diverse Applications: The battery is versatile, suitable for RVs, outdoor camping, automobiles, boats, golf carts, trolling motors, wheelchairs, ride-on toys, backup power, emergency lighting, alarms, home energy storage, and renewable energy systems. For ride-on toys, use a larger capacitor to prevent power issues due to load protection, and select the appropriate battery capacity for your specific needs.
  • Quality Assurance and After-sales Service: WattCycle batteries come with a lifetime of technical support and a 3-year warranty. They require no maintenance and are easy to install. For any questions or issues, our support team is here to help.
 

Reviews (27)

Customer Reviews

Based on 27 reviews
85%
(23)
15%
(4)
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T
That Intellect
Great battery

Packs a huge punch in a small and lightweight package! Make sure you don't past the current limits otherwise these are the best batteries there are for medium current 12 volt hobbies.

J
Jinfrey
Reliable and long-lasting battery

This LiFePO4 battery is a solid performer. Its long lifespan, waterproof design, and low-temperature protection make it an excellent option for outdoor use or as a backup power source. The built-in BMS is an added layer of safety. While not the most powerful battery on the market, it is a reliable choice for moderate power needs. I've found it to perform consistently well.

N
Notloc
Decent battery that is VERY lightweight. Doesn't like High Current loads though.

This battery is surprisingly light, way less than half the weight of a similar SLA battery, which is really nice in portable applications. The dimensions of the battery are exactly the same as its sealed lead acid counterpart so it slots right into any of those applications just nicely.
That being said, the battery operates as expected most of the time. It charges with the correct charger as expected and handles most loads without any issue. I am kind of curious on the capacity of the battery. It did seem like it was not lasting as long as a true 8 Amp Hour battery. But that's just my speculation I don't have the equipment to actually test that. Though, it did last decently long enough.
The one major issue that I ran into, is that it doesn't like really high current loads. Anything above 5 amps draw it seems like the battery protection circuit really jumps into try and protect the battery by dropping the voltage low. So using this with a small inverter is kind of a case by case basis situation, just be aware of that.
Overall though, this is a pretty nice lightweight battery that can be used for a multitude of different applications. I've currently got this employed in a solar battery pack that I use on the go and it's great for keeping most of my devices charged and some extra light when needed.

S
Steven
Flawless order and process

The batteries were put into service on the day they were delivered. I’m using the batteries for an electric gate. I believe these will be a big improvement over the lead acid batteries that I have replaced twice in 5 years. Time will tell if I last longer than your batteries. :)

I am in the process of building a small solar array, and will need some batteries for my project. I have been looking at some of your other larger amp hour batteries for this project, and since my order and process was flawless, I may be ordering perhaps two more of your batteries.

I’ve attached a photo of my small solar array that I’ve put together. I ordered a small shed to store my batteries and associated equipment. When it arrives and I put it together I will look at your batteries.

A
AmateurWheels
Works for my transfer pump

I use various LIFEPO4 batteries in amateur radio applications. This one is smaller than some of those, so I decided to use it with my diesel transfer tank. I have a fill-rite pump in a 50 gallon tank that I use to fill my tractor. I've filled my tractor 2x now, appx 15 gallons, and haven't charged it yet. I know that isn't a great test, but it's what I've done so far!

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Smaller, More Portable in Daily Use

Unlocking Essential Advantages

Top-Tier Safety with BMS

Power up with the Reliable Battery

Efficient Gardening with WattCycle

Power Your Life with Versatile Lithium Solutions

Tech Specs

GENERAL
Dimensions (Inches) 5.94 (L) x 2.55 (W) x3.77(H) 
Weight 2.22lbs / 1kg
Waterproof Rating IP65
Warranty 5 years
Housing Material ABS (Flame Retardant Plastic)
Terminal F2 bolts

BATTERY
Cell EV Grade A+ LiFePO4 Cells
Nominal Voltage 12.8V
Nominal/Usable Capability 8Ah
Energy 102.4Wh
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 8A
Max. Continuous Output Power 102.4W
Max. Continuous Charge Current 8A
Max. Continuous Discharge Current 8A

CHARGE
Charge Voltage 14.6V ± 0.2V
Charge Method CC/CV
Recommend Charge Current 10A (0.2C)
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℃)