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WattCycle Easter Sale - 6% discount of 12V 8AhWattcycle 12V 8Ah LiFePO4 battery size and weightWattcycle 12V 8Ah LiFePO4 battery with EV grade-A LiFePO4 cellsWattCycle 12V 8Ah LiFePO4 battery compared with 12V 8Ah lead-acid battery3 charging methodes of WattCycle 12V 8Ah LiFePO4 batterypackage content of WattCycle 12V 8Ah LiFePO4 batteryWattcycle 12V 8Ah LiFePO4 battery, small capacity battery​2 pcs Wattcycle 12V 8Ah LiFePO4 batteries3 pcs Wattcycle 12V 8Ah LiFePO4 batteries4 pcs Wattcycle 12V 8Ah LiFePO4 batteries
WattCycle Easter Sale - 6% discount of 12V 8Ah
Wattcycle 12V 8Ah LiFePO4 battery size and weight
Wattcycle 12V 8Ah LiFePO4 battery with EV grade-A LiFePO4 cells
WattCycle 12V 8Ah LiFePO4 battery compared with 12V 8Ah lead-acid battery
3 charging methodes of WattCycle 12V 8Ah LiFePO4 battery
package content of WattCycle 12V 8Ah LiFePO4 battery
Wattcycle 12V 8Ah LiFePO4 battery, small capacity battery​
2 pcs Wattcycle 12V 8Ah LiFePO4 batteries
3 pcs Wattcycle 12V 8Ah LiFePO4 batteries
4 pcs Wattcycle 12V 8Ah LiFePO4 batteries

【Easter Sale: 6% OFF, Final Price: €65,79】Wattcycle 12V 8Ah LiFePO4 Battery

Regular price €69,99 €99,99 | Save €30,00 (30% off)
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Key Features
  • ✔ L152 x W66 x H96mm, 0.95kg
  • ✔ 102.4W Output Power, 102.4Wh Usable Energy
  • ✔ 8A Max. Cont. Dis-/Charge Current, 30A ± 5A 1.2s Peak Discharge Current
  • ✔ Support 4P4S Connection to 1638.4Wh Energy

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Services and Benefits

Free Shipping

Enjoy free & fast shipping to most European countries on WattCycle orders. Ship from Germany or Poland. Your package will typically arrive within 2-7 business days, so you can sit back and relax without worry.
*Please see our Shipping Policy for more details.


Hassle-Free 3 Years Warranty

WattCycle guarantees the quality and performance of our batteries and provides a straightforward, hassle-free warranty.
*Please see our Warranty Policy for more details.


Lifetime Customer Support 24/7

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If you have any questions or concerns, feel free to contact us via Email (service@wattcycle.com) or WhatsApp.


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WattCycle Easter Sale - 6% discount of 12V 8Ah

【Easter Sale: 6% OFF, Final Price: €65,79】Wattcycle 12V 8Ah LiFePO4 Battery

1 Pack (Final: €65,79) - €69,99
  • 1 Pack (Final: €65,79) - €69,99
  • 2 Pack (€65,33/each) - €138,99
  • 3 Pack (€64,54/each) - €205,99
  • 👍 4 Pack (€63,92/each) - €271,99

【Easter Sale: 6% OFF, Final Price: €65,79】Wattcycle 12V 8Ah LiFePO4 Battery

Thanks for choosing WattCycle. At WattCycle, we're committed to your satisfaction with our product(s). We guarantee that all WattCycle products are strictly tested by our quality inspectors before delivery.

We understand that there may be situations where you need to return or exchange your purchase. The following "Return & Refund Policy" applies to WattCycle products.

Order Cancellation

WattCycle accepts order cancellation before the product is shipped or produced. If the order is canceled, you will get a full refund via the original payment method within 10 working days (Due to delays in processing refunds from a bank).

WattCycle cannot cancel the order if the product has already shipped out.

Lost / Damaged Products Received

If the product was not delivered or lost, please immediately contact us. We will inquire about the situation and send you a statement. After you sign and send us the statement, we will re-arrange the shipment of your order.

If the product you received was damaged, or if you received an incorrect or incomplete product, please immediately contact us with proof of videos or pictures and product serial number (This number is on a sticker on the product, below the barcode.). After providing the above certificates and serial numbers, we will provide you with a solution based on the damaged or missing items.

30-Days Money-Back Guarantee

Within 30 days of purchase, if you are unsatisfied with the product and there are no quality issues, you are entitled to a refund upon returning the item in its complete, unused condition with original packaging intact. However, you will be responsible for covering the round-trip costs (including shipping fees and handling charges). Costs vary by country/region. Please contact us to confirm the specific costs..

If 30 days have passed since the purchase, a full refund cannot be offered.

Attention: For products that have been used (Unboxing), WattCycle reserves the right to refuse the return.

Return Shipping Cost

WattCycle Pays For Return Shipping

WattCycle will pay for the cost of return shipping if the reason for the return was the result of our error.

Examples of instances may include:

Item arrived defective and cannot be fixed with a replacement part.

We shipped out the wrong item.

We shipped it to the wrong address.

We shipped a duplicate order.

Item malfunctioned during the 30 day returns period. (The customer should install and operate the item properly per the product manual instruction.)

Attention

For items that arrive damaged or are defective, the customer MUST provide videos or photos to support the claim that the item arrived damaged or is malfunctioning. If a customer refuses to or fails to provide videos or photos of a claimed malfunctioning/damaged item, this return will be treated as “buyer’s remorse” and the customer is solely responsible for shipping it back. Once we have received the approved returned item, we will review its condition. If the item is found to be defective, we will issue a refund within 3 working days.

Customer Pays For Return Shipping

In the case of a return due to customer error, return shipping is the customer’s responsibility and shipping charges are paid by the customer. Fees vary by country, please contact us for specific fees.

Attention

Any order offered with special shipping charges is subject to a deduction from our actual outbound shipping costs.

After the 30-day returns period, customers may use the WattCycle Warranty Policy for repairs if the item is faulty or malfunctioning. Please refer to the WattCycle Warranty Policy for details.

Return Item & Address

After confirming with our customer service team that a return is possible, we will provide you with a return solution based on your order's fulfillment warehouse.

If your order was shipped from a German warehouse, we are unable to provide a return label. You will need to contact our customer service team to obtain the return address and arrange the return yourself.

If your order was originally shipped from a Polish warehouse, we will provide you with a return label. You simply need to take the product with the return label attached to a courier station to ship it back.

Refund

For non-quality-related issues and unopened packages, you will be responsible for covering the round-trip costs (including shipping fees and handling charges). Costs vary by country/region.

For quality-related issues reported more than 30 days after the purchase date, WattCycle will provide a partial refund based on the product's usage condition.

Refund Timeline: Once the product is returned to the WattCycle warehouse, WattCycle will process the refund within 7 business days and send you a refund confirmation notification.

Refund Method: The refund will be issued to your original payment method and account.

Attention

If you do not receive the refund within 10 business days, please contact us, and we will assist you in checking the refund status.

Disclaimer

WattCycle does not offer refunds for the following cases:

Discounted or promotional items.

WattCycle products purchased through other entities (e.g., distributors or retail partners).

Returns from a country/region different from the original shipping address of the order. If the return address differs from the original shipping location, resulting in shipping costs exceeding the initial fees, the user will be responsible for covering the additional shipping fees.

Products showing signs of wear, use, or alterations from their original condition.

Products damaged or lost during the return process.

Changes to This Policy

We reserve the right to modify this Return & Refund 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.

Contact

Shenzhen Washi Energy Co., Ltd.

Room A503, Building A, Lankun Group, Baoxin Road, Dajingshan, Buxin Community, Xin'an Street, Baoan District, Shenzhen

Why Choosing WattCycle 12V 8Ah LiFePO4 Battery

With brand new grade A+ LiFePO4 cells and 8A BMS, WattCycle 12V 8Ah small capacity battery provides 5000+ cycles and supports 100% DOD (depth of discharge) and 8A max. cont. dis-/charge current.

Super Safe 8A BMS Protection

Equipped with advanced 8A BMS, WattCycle 12V 8Ah LiFePO4 battery provides protection against over-voltage, over-current, deep discharge, short circuits, overcharging, and extreme temperatures (high/low).

Portable Power Supply, Power Multi Applications

WattCycle 12V 8Ah LiFePO4 battery with 102.4W output power and 102.4Wh usable energy supplies multi-applications, such as camping light, Fan, Bluetooth Speaker, iPad, Phone, and so on.

Power Your Garden Tools Effortlessly

WattCycle 12V 8Ah small capacity battery with portable and compact design is a good match with garden tools. Lightweight, Long-Lasting!

One Battery, Endless Adventures

Carry the portable battery and start an exciting outdoor adventure. IP67 waterpoof and dustproof rating, 102.4W output power, and 102.4Wh usable energy meet your needs from fishing to family fun.

PRODUCT DESCRIPTION

Portable Battery Design: WattCycle 12V 8Ah LiFePO4 battery is smaller (L152 x W66 x H96mm) and lighter (0.95kg) than a traditional 12V 8Ah lead-acid battery (AGM battery). Its energy density reaches 107.79Wh/kg, while the 12V 8Ah lead-acid battery (AGM battery) achieves only 22.02Wh/kg.

EV-Grade A+ LiFePO4 Cells: WattCycle 12V 8Ah LiFePO4 battery is equipped with high-quality EV-grade A+ cells, guaranteeing a lifespan of over 5000+ cycles and up to 10 years. The LiFePO4 cells make the lithium battery more compact, which can enhance the working efficiency of the battery cell and ensure that there will not be any accidental situation such as power outage in the process of using.

Comprehensive BMS Protection: WattCycle 12V 8Ah LiFePO4 battery features an 8A battery management system (BMS) that provides protection against over-voltage, over-current, deep discharge, short circuits, overcharging, and extreme temperatures (high/low). It also enables cell balancing.

IP67 Dust & Water Resistant: WattCycle 12V deep cycle LiFePO4 batteries are designed with a compact case that is IP67 rated for dust and water resistance. The high impact resistance battery case is made of non-conductive ABS plastic, which has strong resistance to impact, shock, chemicals, and heat. The insulating material ensures that there is no leakage of electricity during use. It can be used normally, even on rainy days, but you need to be careful that the positive and negative poles do not get wet.

Up to 1638.4Wh Energy Solution: WattCycle 12V deep cycle LiFePO4 batteries support up to 4 in series and 4 in parallel configurations. Using the 16 WattCycle 12V 8Ah LiFePO4 batteries, a 48V 32Ah battery system can be built, delivering a continuous charge/discharge current of 32A, massive energy storage of 1638.4Wh, and an output power of 1638.4W.

Safer & More Environmentally Friendly: Compared with traditional lead-acid batteries, WattCycle 12V 8Ah small capacity battery is made of the latest lithium-ion technology. The battery doesn't contain any heavy metal elements; it's safer and more environmentally friendly.

Versatile Applications: Ideal for small devices such as fish finders, electric fishing reels, fishing gear, camping equipment, amateur radio equipment, and motorized toy cars.

TECH SPECIFICATIONS

  • Technology LiFePO4 Technology
  • Nominal Voltage 12.8V
  • Standard Charging Voltage 14.6V ± 0.2V
  • Nominal/Usable Capacity 8Ah
  • Max. Continuous Output Power 102.4W
  • Energy 102.4Wh
  • Battery Dimensions L152 x W66 x H96 mm
  • Weight 0.95 kg
  • Waterproof Rating IP67
  • Warranty 3 Years
  • Casing Material ABS (Flame-Retardant Plastic) + PC / UL 94 V-0
  • Series & Parallel Configurations Max. 4 in Parallel, Max. 4 in Series
  • BMS 8A
  • Max. Continuous Charge/Discharge Current 8A (1C)
  • Short Circuit Protection Yes
  • Release Condition Cut-Off Load
  • Overheat Protection During Charging 60℃ – 70℃
  • Overheat Protection During Discharging 65℃ – 75℃
  • Overheat Protection Release Condition Drops to 5℃ – 15℃
  • Low-Temperature Protection During Charging -5℃ – 5℃
  • Low-Temperature Protection During Discharging -25℃ – -15℃
  • Low-Temperature Protection Release Condition Rises to 5℃ – 15℃
  • Charging Temperature 0℃ – 65℃
  • Discharging Temperature -20℃ – 70℃
  • Storage Temperature 0℃ – 60℃

FAQ's

What is the lifespan of WattCycle 12V 8Ah LiFePO4 battery?

WattCycle LiFePO4 lithium batteries can be used for 4000-15000 life cycles. Depending on usage, it can be used for 10 years or more. Even though there is more upfront cost with a WattCycle LiFePO4 Battery, the upgrade of your battery system saves you big in the long run.

How long will a 12V 8Ah battery last​?

The battery’s runtime is influenced by multiple factors, including its capacity, connected load, and condition. For example, a new battery performs better than a used one, as its capacity slightly decreases with repeated charge cycles. However, you can estimate runtime using a simple formula based on power consumption and battery capacity:

Runtime (hours) = Battery Capacity (Wh) / Total Device Power Consumption (W)

Example:
If you have a 12V 8Ah battery and connect a 50W lamp and a 50W speaker, the runtime will be:
102.4Wh / (50W + 50W) = approx. 1 hour

Can I charge a 12V 8Ah battery with a car charger?

Car battery chargers are designed for large SLI (Starting, Lighting, Ignition) batteries and deliver high charging currents. This current is too intense for smaller batteries like the WattCycle 12V 8Ah, 12Ah, or 20Ah. While the LiFePO4 battery can technically be recharged this way, doing so will significantly shorten its lifespan and may cause permanent damage to the battery.

Always use a LiFePO4-compatible charger to ensure safe charging and preserve the battery’s performance and longevity.

What is the charging current for a 12V 8Ah battery?

The WattCycle 12V 8Ah LiFePO4 battery features a built-in 8A BMS and can deliver a maximum continuous charge and discharge current of 8A.

Can lithium batteries be charged below freezing temperatures?

No! It is critical that all WattCycle LiFePO4 batteries are not charged when temperatures are below freezing. Charging a lithium-ion battery at an internal temperature below -4°C can cause long-term or permanent damage.

WattCycle’s low-temperature protection:

  • Automatic Cutoff: All WattCycle batteries include a low-temperature cutoff feature that halts charging when the battery’s temperature is between -5°C and 5°C.
  • Automatic Resume: When the temperature rises to between 5℃ - 15℃, the battery will automatically resume charging.
How to store LiFePO4 batteries?

1. Recommended Storage Conditions

  • To achieve optimal storage results, LiFePO4 batteries should be kept in a cool, dry place.
  • Ideal Storage Temperature: 15°C – 25°C.
    Humidity: Keep humidity as low as possible to avoid moisture buildup.

2. Recommended Charge Level During Storage
LiFePO4 batteries should be stored at a partial state of charge (SOC) between 50% and 80%.

Why Avoid Full Charge/Discharge?

  • Storing the battery fully charged or fully discharged can stress the cells and lead to gradual capacity loss over time.
  • A partial charge helps preserve battery health during storage.

Additional Tips:

  • Check Periodically: If storing for extended periods (>3 months), check the SOC every 3–6 months and recharge to 50–80% if needed.
  • Avoid Extreme Temperatures: Never store in freezing (<0°C) or excessively hot (>60°C) environments.

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