Wirentech warrants that eligible products are free from defects in materials and workmanship under normal use and service during the applicable warranty period.

The warranty period begins on the date of delivery or the date of the original proof of purchase, whichever can be reasonably verified.

Current warranty terms by product category:

• Lithium Batteries: 5-year limited warranty
• Chargers / Converters / Accessories: 1-year limited warranty
• Other components: 1-year limited warranty
  

Note: Final warranty periods are subject to the product page or official order confirmation.

This warranty covers verified manufacturing defects, including but not limited to:

• Failure under normal intended use
• Verified battery management system (BMS) faults
• Verified cell or assembly defects
• Wrong item shipped by Wirentech

This warranty does not cover issues caused by:

• Improper installation, misuse, abuse, or negligence
• Unauthorized modification, repair, or disassembly
• Improper charging, incorrect system integration, or incompatible equipment
• Cosmetic damage that does not affect performance
• Damage caused by water ingress, fire, collision, or external force
• Normal wear and tear or performance decline within reasonable use conditions
• Commercial, rental, racing, or other abnormal applications unless explicitly approved

To start a warranty claim, please contact our support team and provide:

• Order number
• Product model
• Problem description
• Photos or videos of the issue
• System information, installation details, and troubleshooting records if requested

If a valid warranty claim is confirmed, Wirentech may, at its sole discretion:

• Provide troubleshooting support
• Repair the product
• Replace the product with the same or equivalent model
• Offer a partial or full refund where applicable

For verified quality-related warranty cases, Wirentech will [cover / partially cover / assess case by case] the return or replacement shipping cost.

For non-quality issues, shipping and related handling costs may be the responsibility of the customer.

This warranty is non-transferable and applies only to the original purchaser unless otherwise stated in writing.

Orders are typically processed within [1–3 business days] after payment confirmation, excluding weekends and public holidays.

Wirentech currently ships to:

• [United States]
• [Canada]
• [EU / UK ]

Note: Final warranty periods are subject to the product page or official order confirmation.

Estimated delivery time depends on destination, warehouse availability, and carrier service. Typical delivery time is:

- United States orders: 2–7 business days
- Canada orders: 5–10 business days
- EU orders: 3–7 business days
- UK orders: 5–10 business days

These delivery times are estimates only and are not guaranteed.

• [Free shipping on selected orders / Free shipping on all orders / Shipping calculated at checkout]

Any remote area surcharge, special handling fee, or customs-related fee (if applicable) will be shown before order confirmation or communicated separately.

You can track your order at any time by visiting our Order Tracking page and entering your order number used at checkout.

Certain lithium battery products may be subject to shipping restrictions due to local transport regulations, hazardous goods requirements, or carrier limitations. Wirentech reserves the right to adjust shipping methods or cancel restricted orders where necessary.

Please inspect your package upon arrival. If the package is damaged, lost, or if the wrong item was received, contact us within 48 hours of delivery and provide photos, videos, and shipment details so we can investigate and assist.

Wirentech is not responsible for shipping delays caused by force majeure, customs inspections, weather events, carrier disruptions, or other circumstances beyond our reasonable control.

If an order is refused, undeliverable, or returned due to an incorrect address provided by the customer, the customer may be responsible for return shipping, reshipping cost, and any applicable handling fees.

You may request a return within 30 days after receiving your order.

To be eligible for a return, the item must:

• Be purchased directly from Wirentech
• Be in its original condition
• Include original packaging, accessories, manuals, and proof of purchase
• Not show signs of misuse, improper installation, or damage caused after delivery

Note: Final warranty periods are subject to the product page or official order confirmation.

For non-quality-related return requests:

• Return requests must be submitted within the return window
• The customer may be responsible for return shipping costs
• A [restocking / processing] fee may apply
• Original outbound shipping charges, if any, may be non-refundable

If the product is confirmed to be defective, damaged on arrival, or the wrong item was shipped, Wirentech will work with the customer to provide troubleshooting, replacement, repair, or refund as appropriate.

For approved quality-related returns, return shipping and handling will be [covered by Wirentech / assessed case by case].

To request a return, contact our support team first and provide:

• Order number
• Product name / model
• Reason for return
• Photos or videos if applicable
  

Do not return products without prior authorization. Unauthorized returns may be refused or delayed.

Once the returned item is received and inspected, we will notify you whether the refund is approved. If approved, the refund will be issued to the original payment method within [3–5 business days]. Processing time may vary depending on your payment provider.

If you need a replacement or exchange, please contact us before returning the item. Exchange handling depends on stock availability and the condition of the returned product.

The following items may not be eligible for return unless defective:

• Used or installed products
• Customized or special-order items
• Clearance or final-sale items
• Products returned without original packaging or missing parts

Orders may be cancelled before shipment. Once an order has shipped, cancellation is no longer guaranteed and may be treated as a return request subject to applicable fees and shipping charges.