FAQs

You’ll receive a tracking number by email once your order is shipped. Use it on our website or the carrier’s site to check your delivery status.

Most orders are delivered within 3–7 business days, depending on location.

If the package does not arrive within the estimated time, you can contact us to check the status.

Some states may charge additional taxes. Please confirm on the checkout page. If taxes apply, the tax amount will be displayed.

Yes, we offer free shipping to 48 states.

We currently offer free shipping within the contiguous United States (excluding Hawaii, Alaska, and Puerto Rico).

If your order hasn’t shipped yet, please contact us as soon as possible to request changes or cancellation.

FedEx/USPS/UPS

Grade A new LiFePO4 cells: 100% new, top-tier lithium iron phosphate cells with consistent quality and performance.

Smart multi-protection BMS: Offers safeguards against overcharging, over-discharging, short-circuit, overheating, low-temperature conditions, and more.

Solid-state, maintenance-free design: The battery is composed of solid materials. No liquid electrolyte to leak, no water required for topping up.

Shock-resistant build: Filled with cushioning materials and tested for vibration and drop resistance.

Eco-friendly & long-lasting: Built for a long service life, reducing waste and environmental impact.

On the product pages of our website, you'll find some basic specifications. Your battery package also includes a user manual. If you lose it, please contact us for Digital Manual.

No, our batteries are deep-cycle batteries designed to provide stable, long-term current output, and they come with a built-in BMS. They cannot deliver high current in a short time.

• Store the Battery at 50–70% State of Charge.
• Disconnect All Loads and Chargers.
• Choose a Cool, Dry Storage Location.
• Check and Recharge Every 6 Months.

• Use a LiFePO₄-specific charger
• Match voltage correctly
• Choose an appropriate charging current
• Avoid mixing battery chemistries
• Use a DC-DC charger when charging from vehicle alternators

If you're unsure whether the charger is compatible, you can contact us for assistance in determining it.

4S4P refers to the series and parallel configuration of the battery cells:

• 4S: 4 groups of cells connected in series to reach the rated voltage.
• 4P: 4 strings of cells connected in parallel to increase capacity and output current.

Taking a 12.8V 100Ah battery as an example, a 4S4P configuration means 16 batteries connected in series and parallel, achieving a capacity of 51.2V 400Ah.

No, we strongly advise against mixing different brands of batteries together.
Different brands use varying cell chemistries, internal resistance, and BMS parameters, which can cause uneven charging/discharging.
This imbalance can lead to overheating, reduced lifespan, or even safety hazards.
For optimal performance and safety, always use identical batteries of the same brand, model, age, and capacity when connecting in series or parallel.

Charging Temperature: 0°C to 50°C / 32°F to 122°F

Discharging (Operating) Temperature: -20°C to 60°C / -4°F to 140°F

Storage Temperature: -10°C to 50°C / 14°F to 122°F

Voltage compatibility
Make sure your device’s operating voltage matches the battery’s rated voltage.
Physical size & installation space
Check dimensions to ensure the battery fits your device’s battery compartment.
Device manual recommendations
Follow the battery type, voltage and capacity specs in your equipment manual.
Discharge current / Power demand
Ensure the battery can support your device’s working current and power requirements.

The battery can be placed on its side, but please ensure that the positive and negative terminals on the top of the battery are not facing downwards to avoid being squeezed or coming into contact with water.

No, in this case, only the battery with Bluetooth functionality can be monitored.

Our batteries come with an IP65 rating, providing reliable protection against water, dust and salt spray.

We offer a five-year warranty. If you encounter any issues with your product, you can contact us, and we will resolve them for you.

Please contact us as soon as possible, and our customer service will provide a solution or arrange a replacement for you if necessary.

If you want to return an item because of personal reasons (such as unsuitable sze), we usually do not cover the cost of the return,
but if the item has quality problems, please contact our customer service and we will solve the problem as soon as possible.

We apologize for the inconvenience caused. Please do not send it back on your own. Reach out to us and we will handle the exchange for you.

If the product has quality issues upon receipt, we offer free returns or exchanges. However, if the return is due to consumer reasons, we cannot cover the shipping costs.

For more details, please refer to the return policy.