Refund policy

1. Return Window

You may request a return of an eligible product within 30 calendar days after delivery.

Contact us before sending any product back. Returns sent without prior written authorization or to an unconfirmed address may be refused.

To request a return, email sales@fluxbatteryhub.com with:

• Order number and purchasing email;

• Product name, SKU, quantity, and lot number if available;

• Reason for the return;

• Photographs of the product, packaging, labels, and any defect or damage; and

• Requested resolution.

If the return is approved, we will provide written return instructions and the correct return address.

The commercial office address shown on our website is not automatically the return warehouse.

2. Eligible Change-of-Mind Returns

A standard, non-customized product may be eligible for a change-of-mind return if it is unused, unopened where product integrity or contamination control requires sealed packaging, in its original condition, and returned with its original packaging, labels, accessories, manuals, and proof of purchase.

The customer is responsible for approved change-of-mind return shipping and safe packaging.

Original shipping and expedited-service charges are not refundable for a change-of-mind return.

We do not charge a restocking fee for an eligible unopened standard product.

3. Products That Cannot Normally Be Returned

Except where a product is defective, damaged in transit, incorrectly supplied, materially non-conforming, or return is required by applicable law, we cannot accept returns of:

• Opened powders, chemicals, electrodes, separators, foils, electrolytes, sealed laboratory consumables, or other products whose integrity, traceability, cleanliness, shelf life, or safe resale cannot be verified after opening;

• Hazardous, regulated, temperature-sensitive, contaminated, or improperly stored materials;

• Products cut, coated, assembled, configured, labeled, packaged, or manufactured to the customer’s specification;

• Special-sourcing or non-standard products clearly identified as non-returnable before payment;

• Used equipment or equipment showing installation damage, contamination, modification, misuse, or missing parts; or

• Downloadable files or services already fully provided, except where required by law.

If you are unsure whether a product is returnable, contact us before ordering or opening the package.

4. Damage, Defects, Wrong Items, and Non-Conforming Products

Inspect the shipment promptly.

Contact us preferably immediately and no later than 7 calendar days after delivery if an item is visibly damaged, the wrong product or quantity was supplied, or there is a readily apparent defect.

For a hidden defect discovered later, contact us promptly after discovery and within any product-specific warranty period stated on the product page, quotation, or order confirmation.

Provide reasonable evidence such as photographs, video, packaging, labels, lot information, measurements, test conditions, or carrier records.

Do not dispose of the product or packaging until we confirm that it is no longer needed for review.

When our error, confirmed transit damage, or material non-conformity is established, we will provide an appropriate remedy, which may include replacement, reshipment, repair support, store credit, partial refund, or full refund.

We will cover reasonable approved return or reshipping costs in these cases.

5. Product Suitability and Product Non-Conformity

Battery research results depend on cell design, materials, process settings, storage, handling, test equipment, and experimental conditions.

A product is not defective solely because it does not produce a customer’s expected research result when it conforms to the published or agreed specification.

Customers should review specifications and confirm critical requirements with us before ordering.

6. Cancellations

Contact us as soon as possible to request cancellation.

An in-stock order may be cancelled for a full refund if it has not entered packing or shipment processing.

Customized, cut-to-size, non-standard, or special-sourcing orders may not be cancellable after procurement or production begins.

If an order has already shipped, the approved return rules and shipping-cost responsibilities apply.

We may cancel and refund an order if the product is unavailable, pricing or product information contains a material error, payment cannot be verified, or shipment would violate law, carrier rules, or safety requirements.

7. Exchanges

For an eligible standard product, the fastest exchange method is normally to obtain return approval and place a separate order for the replacement.

If the wrong item or a defective item was supplied, contact us before placing a replacement order so that we can arrange the appropriate remedy.

8. Inspection and Refunds

We will notify you after the returned product is received and inspected.

Approved refunds are sent to the original payment method within 10 business days after approval. Payment providers and banks may require additional time to post the refund.

Refunds are issued in the transaction currency.

We are not responsible for exchange-rate differences or payment-provider fees that we did not receive, except where applicable law requires otherwise.

If more than 15 business days have passed since we confirmed that a refund was issued, contact sales@fluxbatteryhub.com.

9. Consumer Rights

Nothing in this policy limits a mandatory consumer right that cannot lawfully be excluded.

If you are buying as a consumer in a jurisdiction that provides a statutory cancellation or withdrawal right, including an applicable EEA or UK right, that right applies in addition to this policy.

Consumer withdrawal rights may not apply to business or institutional purchases or to legally exempt customized, opened, sealed, or regulated products.

Where an electronic withdrawal or cancellation method is legally required, customers may use the withdrawal function made available on the store or contact us at sales@fluxbatteryhub.com.

We will provide the required instructions after verifying the order and applicable right.