Warranty Terms

• ▸Warranty Period: The specific warranty duration for the purchased LiFePO4 cells is expressly detailed on the Customer's original Ray Vault Energy invoice.
• ▸Coverage Scope: This warranty covers cell-to-cell replacement solely for confirmed manufacturing defects. Ray Vault Energy covers the replacement cell cost for genuine manufacturing faults during the stated warranty period.
• ▸Capacity Retention Guarantee: Ray Vault Energy guarantees that the cells will maintain a standard baseline of 60% to 70% of their original nominal capacity by the conclusion of the stated warranty period or upon reaching the manufacturer's maximum cycle count, whichever occurs first (specific retention values vary by cell manufacturer and will be communicated at the time of purchase).
• ▸Normal Degradation: Lithium Iron Phosphate cells chemically degrade and naturally lose a small percentage of their capacity over continuous charge and discharge cycles and over time. This standard capacity degradation with time and normal usage is a chemical reality of the technology and is strictly not classified as a manufacturing defect.

To qualify for a warranty evaluation, the Customer must rigidly adhere to all of the following conditions. Failure to meet any single condition instantly voids all coverage:

• ▸Identification Intactness: The original factory QR code and Ray Vault Energy serial numbers must be perfectly intact. Any evidence of tampering, scratching, sanding, or obscuring the QR code voids the warranty immediately.
• ▸Mandatory BMS Integration: The cell must be operated with a fully functional Battery Management System (BMS) that monitors individual cell voltages. Operating cells without a compatible BMS instantly voids the warranty.
• ▸Mandatory BMS Logs: The Customer must provide the BMS data logs for the claimed cell(s). These logs must confirm that the cells were operated under BMS protection and must show the reported fault. No warranty claim will be processed without BMS logs that confirm the issue.
• ▸Proper Bus-Bar Usage: The warranty remains valid only if appropriately sized flexible or high-quality rigid bus-bars are utilised to accommodate cellular expansion.
• ▸Terminal Integrity: Strict adherence to torque limits (5-7Nm) is required. Any damage to the terminal threads, including stripping, cross-threading, or snapping due to over-torquing, is strictly the Customer's liability and voids the warranty.
• ▸Pre-Assembly Top-Balancing: The Customer assumes full responsibility for properly top-balancing all cells prior to assembling them into a battery pack. Damage resulting from assembling unbalanced cells is not covered.

This warranty explicitly excludes damage, performance failure, or degradation resulting from the following:

• ▸Physical Abuse & Deformation: Any physical damage, including burnt terminals, casing punctures, leaks, or any form of cell bloating, swelling, or expansion caused by overcharging or improper compression.
• ▸Internal Abuse & Deep Discharge: Damage caused by severe over-discharging or overcharging. This will be independently verified by our technicians via high Internal Resistance (IR) mapping and Voltage Recovery Analysis.
• ▸Electrical Overstress: Accidental short-circuits, series/parallel configurations exceeding the cell's maximum rated limits, lightning strikes, or external electrical surges.
• ▸Environmental Damage: Exposure to extreme heat, fire, flooding, moisture ingress, or corrosive environments.

• ▸Claim Initiation: The Customer must submit the original invoice, clear photographs of the cell(s) (showing the QR code, terminals, and overall condition), the BMS data logs covering the period of the failure, and a description of the failure. Claims submitted without BMS logs will not be accepted for evaluation.
• ▸Testing & Inspection Deposit: To prevent the return of healthy, merely unbalanced cells, a non-refundable upfront inspection fee of Rs. 2,000 per cell is required before physical evaluation begins.
• ▸Evaluation & Refund: Ray Vault Energy will conduct strict IR mapping and voltage recovery tests. If the cell is confirmed to possess a genuine manufacturing defect, a replacement cell will be provided, and the Rs. 2,000 inspection fee will be credited back to the Customer. If the cell failure is deemed a result of user error, abuse, or BMS failure, the claim will be rejected and the inspection fee is forfeit.

Ray Vault Energy assumes no liability for incidental, indirect, special, or consequential damages resulting from the use or failure of the supplied LFP cells. This includes, without limitation, the failure of an entire battery pack due to a single cell, damage to connected equipment, lost profits, downtime, or safety incidents resulting from improper assembly or lack of adequate BMS protection. The total liability shall never exceed the purchase price of the individual defective cell.

Notice: By purchasing, accepting, and utilising the LiFePO4 cells, the Customer explicitly acknowledges and agrees to these strict Warranty Terms and conditions.

• ▸Duration & Cycle Life: The specific warranty duration (in years) and the maximum cycle count for your unit are expressly detailed on your original Ray Vault Energy invoice.
• ▸Performance Guarantee: Ray Vault Energy guarantees that the battery pack will retain a standard baseline of 60% to 70% of its original nominal capacity by the conclusion of the stated warranty period or upon reaching the maximum cycle count, whichever occurs first.
• ▸Manufacturer-Specific Variances: Because our inventory includes multiple manufacturing brands, exact capacity retention percentages and cycle life benchmarks (e.g., 6,000 cycles at 70% retention or 3,500 cycles at 60% retention) vary by manufacturer. If the manufacturer's specification differs from the standard baseline, the specific retention values and cycle limits will be explicitly communicated and documented at the time of purchase.
• ▸Coverage Scope: For the full duration of the valid warranty period, Ray Vault Energy will facilitate the free repair or replacement of defective cells or Battery Management Systems (BMS) resulting from manufacturing faults. All parts and handling charges are covered at no cost to the customer.

To maintain a valid warranty, the user must strictly adhere to all of the following operational guidelines:

• ▸Settings Verification: The connected inverter must be accurately configured to match the battery pack's recommended settings, specifically regarding voltage cut-offs and maximum charge/discharge current limits.
• ▸BMS Log Inspections: Ray Vault Energy reserves the right to extract and inspect the internal BMS data logs. The warranty will be voided if data logs demonstrate that the battery was consistently overheated, charged outside recommended temperature ranges, or over-discharged beyond system limits.
• ▸No Deep Discharge Standby: The BMS logs must confirm that the battery has not been drained to and left at a 0% State of Charge (SOC) for extended periods.
• ▸Environmental Requirements: The battery pack must be installed in a well-ventilated, dry indoor location.
• ▸Intact Identifiers: The original manufacturer serial number and the Ray Vault tracking ID must be clearly visible and untampered with.
• ▸Warranty Seals: Any evidence of opening the battery casing, modifying components, or breaking the factory warranty seals without explicit written authorisation from Ray Vault Energy instantly voids the warranty.

To maximise battery life and ensure warranty validity, the Customer must strictly adhere to the following operational parameters and environmental conditions:

• ▸Inverter Settings: The inverter or charge controller must be configured exactly according to Ray Vault Energy's recommended settings, particularly regarding voltage cut-offs and maximum charge/discharge currents.
• ▸Charging & Discharging Limits: The long-term maximum continuous charging and discharging current should not exceed 0.5C. Avoid accelerating loads harshly, as it may cause current spikes triggering the battery's self-protective cut-off.
• ▸State of Charge (SOC) Management: Avoid discharging the battery to less than 5%. Do not leave the battery in a deeply discharged state. If the battery capacity is completely depleted, it must be recharged within 48 hours. Leaving the battery at 0% SOC for extended periods will permanently damage the cells and void the warranty.
• ▸Installation Environment: The battery must be installed in a well-ventilated, dry, and level location. It must be protected from direct sunlight, moisture, dust accumulation, and insect/pest infestation.
• ▸Operating Temperatures: The system must operate within the safe temperature thresholds - Discharge: 0°C to 55°C (32°F to 131°F); Charge: 0°C to 50°C (32°F to 122°F).

This Limited Warranty does not cover damages, defects, or performance failures resulting from any of the following occurrences (including but not limited to):

• ▸Tampering & Unauthorized Access: Any evidence of opening the battery casing, attempting repairs, altering components, or breaking the factory warranty seals without explicit written authorisation from Ray Vault Energy.
• ▸Environmental Damage & Force Majeure: Damage caused by lightning strikes, external electrical surges, grid instability, fire, flooding, earthquakes, or prolonged exposure to water/moisture.
• ▸Physical Abuse: Physical damage, dropping, crash, collision, or any external forces applied to the battery casing or terminals.
• ▸BMS Violations: Logged data showing the battery was consistently overheated, subjected to extreme cold while charging, or severely over-discharged beyond hardware limits.
• ▸Improper Installation & Wiring: Loose terminal connections, under-sized cabling, incorrect series/parallel connections, reverse polarity connections, or integration with incompatible inverters.
• ▸Normal Wear & Tear: Normal capacity fade over time. LiFePO4 cells naturally lose a small percentage of capacity over thousands of cycles; this is a chemical reality, not a defect.

If a product failure occurs within the Warranty Period, the Customer must follow the procedure below to initiate a claim:

• ▸Notification: The Customer must contact Ray Vault Energy technical support at inquire@rayvault.lk or via our official phone lines within 14 days of identifying a potential defect.
• ▸Required Documentation: The Customer must provide the original purchase invoice, a description of the alleged defect, photographic evidence of the installation (including inverter settings and wiring), and the serial number/tracking ID.
• ▸Initial Remote Diagnosis: Our engineering team may require the extraction of BMS data logs to diagnose the issue remotely before authorising a physical return.

• ▸The Customer is strictly responsible for the safe transportation of both the faulty battery pack (to our facility) and the temporary backup unit.
• ▸Any physical or electrical damage occurring to the temporary backup unit while in the Customer's possession will be the sole financial liability of the Customer.
• ▸The warranty period of any repaired or replaced battery will be the remaining unused portion of the original Warranty Period.

Except as expressly stated herein, Ray Vault Energy makes no other warranties, guaranties, or conditions, express or implied, by operation of law or otherwise. We strictly disclaim any implied warranties of merchantability or fitness for a particular purpose.

In no event shall Ray Vault Energy (Pvt) Ltd be held liable for any incidental, indirect, special, or consequential damages of any nature whatsoever. This includes, without limitation, lost profits, loss of use, downtime costs, loss of electrical power, or damage to connected equipment (such as inverters or household appliances), regardless of the legal theory on which such a claim is based. The total liability of the Manufacturer under this warranty shall never exceed the original purchase price of the Battery Pack.

Notice: By purchasing, accepting, and operating the Ray Vault Energy Battery Pack, the Customer explicitly acknowledges and agrees to these Warranty Terms and Technical Guidelines.