Warranty Policy
Our warranty policy is designed to give drone operators, fleet owners, and enterprise customers confidence in the reliability, safety, and performance of our Li-ion battery systems.
1. Warranty Coverage
This warranty applies exclusively to Li-ion battery packs manufactured and/or sold by Techlanz Private Limited under the VOUWL brand.
We warrant that our battery packs are free from defects in materials and workmanship when used under normal operating conditions and in accordance with product documentation.
2. Warranty Period
The warranty is valid for either:
- The specified warranty duration, or
- The maximum warranty cycle life listed for the battery model,
whichever occurs first, starting from the date of purchase.
Proof of purchase or a valid warranty card is required for all warranty claims.
3. What This Warranty Covers
Manufacturing & Assembly Defects
Coverage includes defects arising from:
- Faulty materials
- Improper soldering
- Internal short circuits due to assembly errors
- Improper sealing or enclosure defects
Performance Assurance
During the warranty period, the battery pack must retain at least 70% of its rated capacity, provided:
- The battery is used as per recommended guidelines
- Charging, discharging, and storage conditions are followed
BMS Compliance
For batteries equipped with TrakR or BMS monitoring systems:
- Regular data updates must be available
- Warranty verification may require access to BMS logs
- Monthly data sharing is required to remain eligible for warranty support
4. Conditions for Valid Warranty Claims
To qualify for warranty service, the following conditions must be met:
- Battery must be operated within specified voltage, current, and temperature limits
- Battery must be physically presented for inspection
- Storage temperature must be maintained between 20°C and 40°C when not in use
- Only compatible chargers approved for the battery must be used
- No overcharging, deep discharging, or misuse
- All labels, seals, and markings must remain intact
- TrakR / BMS devices must not be removed or tampered with
5. What This Warranty Does Not Cover
Improper Storage Damage
- Storage in extreme temperatures
- High humidity storage conditions
User-Induced Damage
Including but not limited to:
- Overcharging or over-discharging
- Use beyond rated voltage or capacity
- Physical damage (crushing, puncture, impact)
- Exposure to fire, water, or chemicals
- Power connector burnout
- Battery fires
- Balance connector failures
- Cable corrosion, cuts, or damage
- Short-circuit related damage
Unauthorized Modifications
- Repairs or alterations by third-party or unauthorized service providers
- Any form of battery pack tampering
Normal Wear & Tear
- Gradual capacity loss beyond the specified warranty period or cycle count
6. Warranty Claim Process
Follow these steps to initiate a warranty claim:
- 1
Contact Customer Support
Reach out via our official customer care email or phone number to obtain an RMA (Return Merchandise Authorization) number.
- 2
Submit Required Information
- Proof of purchase
- Description of the issue
- BMS data logs
- Photos or videos (if requested)
- 3
Ship the Battery Pack
- Ship the battery to the address provided with the RMA number
- Return shipping costs are covered by Techlanz Private Limited if the claim is approved
7. Warranty Remedies
If a defect is verified, Techlanz Private Limited may, at its discretion:
- Repair the defective battery pack
- Replace it with a refurbished unit of equal or higher value
- Provide a prorated discount coupon based on remaining warranty period or cycle count, redeemable on your next purchase
8. Important Notes
- Warranty decisions are based on technical evaluation and BMS diagnostics
- Final warranty determination rests with Techlanz Private Limited
- This warranty is non-transferable unless explicitly stated
Need Help?
For warranty support, diagnostics, or documentation, contact our Customer Support Team:
