Returns and Exchanges Policy
For items purchased from LiThink, you can request a return or exchange within 30 days of placing your order if you are not completely satisfied with your purchase. LiThink will cover the return shipping costs, provided the item is returned in its original packaging, complete with all instruction manuals and accessories, and in a resalable condition.
Important notice:
Unauthorized modifications (including, but not limited to, disassembly) will void the warranty. Returns of such items will not be accepted. If modified items are returned, we reserve the right to reject them and send them back at the customer's expense.
Warranty Claims Process (Please follow step by step to avoid delays):
Contact us with a detailed description of the issue:
① Describe the symptoms, when they started, and the measures taken.
② Include the order number, serial number (SN), and the troubleshooting steps you have already tried.
Limited Warranty Terms
Lithink is committed to delivering sustainable solutions for the future through innovation. Our commitment to quality and service reinforces this dedication. As a sign of our confidence in our products, we offer the following warranty from the date of purchase: If a Lithink product fails to meet the quality standards of this warranty (as assessed by our support team), we will repair the defect or replace the product with a new/refurbished model with equivalent or better specifications. In exceptional cases, a refund will be issued. This warranty is subject to the following terms and conditions, including the replacement schedule table.
Warranty period
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Product category
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Warranty period
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Batteries
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12V series (>30Ah)
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10 years
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24V Series (>30Ah)
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10 years
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12V Series (≤30Ah)
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5 years
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24V Series (≤30Ah)
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5 years
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Accessories
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Charge controller
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all models
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2 years
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Warranty coverage
1. Cancellation
Orders can be canceled within 180 minutes of being placed. For items that have already been shipped, the customer must be refused by the carrier.
2. Returns without giving a reason
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Time frame
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Shipping ccost coverage
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Conditions
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≤30 days
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We cover costs
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① Original condition
②c omplete accessories
③ in resalable condition
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31-45 days
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Customer covers costs
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As above + deduction of shipping costs, if applicable
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*Notes:
① Return period without giving a reason: The period begins on the delivery date recorded in the logistics system.
② Return within 31–45 days without giving a reason: For returns that are not due to an error on our part, the customer is responsible for the costs.
③ Returns made by customers without prior authorization will not be accepted. Please contact us before returning your item to receive a return label.
3. Return for personal reasons
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Time frame
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Covering shipping costs
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Conditions
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46-90 days
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Customer covers costs
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① Original condition
②c omplete accessories
③ in resalable condition
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*Notes:
① Return period for personal reasons: The period is calculated from the purchase date.
② Fees apply. For details, see Section 4.2 (Refund Policy).
4. Return due to a product defect
4.1 Exchanges
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Option
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Order year
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Costs
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New
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≤12 months
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Free
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12＜X≤60 months
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Pay the price difference
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Refurbished
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12＜X≤24 months
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Free
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24＜X≤36 months
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Customer bears the costs
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36＜X≤60 months
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Customer covers costs
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*Notes:
① Calculation formula for the additional payment when exchanging for a new device:
Current price - (Purchase price - monthly depreciation × months of use - return shipping costs)
② Monthly Depreciation = Purchase price ÷ Warranty months
③ Warranty period:
The remaining warranty period for the original order remains unchanged.
4.2 Refund
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Return type
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Purchase time
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Return Policy
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Refund amount
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Product quality issues
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3 to 12 months
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① Good looks
② No missing accessories
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Purchase price - monthly depreciation × months of use - return shipping costs
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12 to 24 months
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Purchase price - monthly depreciation × months of use - return shipping processing fee
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24 to 36 months
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36 to 48 months
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48 to 60 months
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*Notes:
① Monthly Depreciation = Purchase price ÷ Warranty months
② Purchased ≤ 3 months ago, full refund
③ Processing fee = One-way shipping × 1,1
5. Additional Information
● Missing accessories: Deduction of 5 to 10 Euro per item (assessed by customer service).
● International Returns: The customer is responsible for additional shipping costs for remote or island addresses.
● Lost/stolen packages: File a claim with the shipping company. If you need further assistance, please contact customer service.
● Please contact support@lithink.de first. Once customer service has approved your return, you will receive a return confirmation by email and can send the item back.
Buyer's obligations
1. Usage restrictions:
● Do not use incompatible chargers or expose to overvoltage.
● Do not use non-starter batteries to start the engine.
● No series/parallel connections unless specified.
2. Operating rules:
● Avoid contact with liquids, reverse polarity, and extreme temperatures/humidity.
● Prevent physical damage (impacts, punctures, etc.).
● No disassembly/modification/unauthorized repairs.
● Protect against corrosion and misuse.
Disclaimer and Warranty Limitations
1. Not covered:
● Normal wear and tear (scratches on the casing, loss of capacity)
● Force majeure (natural disasters, war, etc.)
● Damage caused by human actions (tampering, water contact, misuse)
● Problems caused by third parties (theft, unauthorized purchases)
● System error (poor ventilation, electrical load)
● Poor maintenance (loose connections, missing padding)
● Violations of usage restrictions
2. Special restriction clauses:
● Wear parts
● Damage caused by improper storage/transport/installation
● Failure to follow the manuals
After-Sales Policy
1. General Requirements:
● Refunds/replacements require the items to be returned.
● The warranty period begins on the original purchase date.
2. Battery warranty details:
● Only malfunctions are covered.
● Only malfunctions are covered (excluding capacity loss/cosmetic defects).
Warranty check
Claims will be denied if:
① The warranty period has expired.
② It is normal wear and tear.
③ There is damage caused by tampering.
④ The defects were not caused by the manufacturer.
⑤ Improper use/maintenance has occurred.
Special declaration
The use of batteries as a backup or primary power source for life-support systems or other medical devices is prohibited without the manufacturer's involvement in the system design and express written approval. To the extent permitted by law, the manufacturer disclaims all liability arising from such use. Furthermore, the manufacturer reserves the right to refuse customer service for batteries used in the scenarios described above and shall not be liable for such refusal.
The invalidity of any individual provision of this policy does not affect the validity of the remaining provisions.
Contact:
✉ Email:support@lithink.de
