Fronius International Limited Warranty Terms - Battery
Document Code: EL_0225
A modern building facade with integrated solar panels, featuring the prominent red Fronius logo. A solid red square graphic is overlaid on the left side of the image.
A. General Provisions
1. General
1.1 FRONIUS INTERNATIONAL GmbH, located at Froniusstrasse 1, 4643 Pettenbach, Austria ('FRONIUS'), provides a limited, optional manufacturer's warranty ('LIMITED WARRANTY') for products manufactured and described in more detail below, according to the following warranty terms ('WARRANTY TERMS').
1.2 The LIMITED WARRANTY exclusively covers defects of the COVERED PRODUCTS (as defined in Section 2.2). It applies solely to the COVERED PRODUCT itself and not to any digital services provided by FRONIUS.
1.3 This LIMITED WARRANTY is the sole and exclusive warranty provided by FRONIUS concerning the COVERED PRODUCTS. This WARRANTY is granted in addition to, and does not restrict, statutory warranty obligations.
2. Scope of the Limited Warranty
2.1 Temporal and Territorial Scope of the Limited Warranty:
The LIMITED WARRANTY applies to COVERED PRODUCTS purchased from August 1, 2025, onwards. FRONIUS reserves the right to change the WARRANTY TERMS at any time at its sole discretion; any such change(s) will apply to purchase agreements for COVERED PRODUCTS concluded after the date of the change. The applicable WARRANTY TERMS are always those in effect in the country of first sale (the 'COUNTRY') at the time of concluding the purchase agreement for the COVERED PRODUCT. The period of the LIMITED WARRANTY (the 'WARRANTY PERIOD') is described in detail in Section 7. The LIMITED WARRANTY is geographically limited to the countries listed in Section B. Different warranty terms for overseas territories and associated island territories are also listed in Section B for the respective country groups. FRONIUS provides no warranty, express or implied, in countries not listed in Section B.
2.2 Material Scope of the Limited Warranty:
The LIMITED WARRANTY applies to COVERED PRODUCTS manufactured by Fronius Solar & Energy which were (a) purchased from FRONIUS or an authorized FRONIUS dealer or an installation professional as new devices and (b) commissioned by an installation professional specializing in the installation of photovoltaic systems in accordance with the FRONIUS Operating Instructions, which are the specifications and instructions for assembly, installation, operation, maintenance, and use of the COVERED PRODUCT provided by FRONIUS for the respective COVERED PRODUCT at the time of purchase ('OPERATING INSTRUCTIONS'). The LIMITED WARRANTY applies only to hardware devices or device parts (i.e., hardware components only, not software or digital services) from FRONIUS belonging to the following product groups:
- Fronius Reserva (Reserva BMS, Reserva Modul)
Certain product types or product models may only be available in certain regions. The LIMITED WARRANTY applies only to product types and product models that have been made available on the market by FRONIUS in the respective COUNTRY. The following products are expressly excluded and are not COVERED PRODUCTS under this LIMITED WARRANTY. FRONIUS PROVIDES NO WARRANTY FOR THE FOLLOWING PRODUCTS:
- Parts of the COVERED PRODUCTS subject to wear and tear (e.g., DC disconnectors, fuses, housing parts),
- all parts or accessories not originally sold or made available by FRONIUS - this applies, for example, but not exclusively, to all other components of the photovoltaic system, system extensions, system monitoring, and data communication components.
2.3 Personal Scope of the Limited Warranty:
A person who has acquired a COVERED PRODUCT for personal use in accordance with the provisions of Section 2.2 ('WARRANTY HOLDER') is entitled to warranty claims. If the WARRANTY HOLDER transfers ownership of the COVERED PRODUCT to a third party, including their legal successor, the warranty claims as they exist at the time of transfer shall pass to the said third party, and the LIMITED WARRANTY shall not be extended, renewed, or otherwise prolonged by such transfer. Persons or entities who do not acquire the COVERED PRODUCT for personal use, but for resale or other transfer of use, are not entitled to this LIMITED WARRANTY, nor do they receive the benefits arising from this LIMITED WARRANTY.
3. Covered Defects
3.1 Product Warranty
3.1.1 FRONIUS warrants that under normal installation, use, and service conditions, and by following the OPERATING INSTRUCTIONS (see Section 2.2) during the WARRANTY PERIOD (see Section 7), each COVERED PRODUCT will be free from material and manufacturing defects that are caused by the manufacture of the COVERED PRODUCT and affect the functionality of the COVERED PRODUCT ('COVERED DEFECTS').
3.1.2 Defects that do not affect the proper functioning of the COVERED PRODUCT (including, but not limited to, cosmetic defects and imperfections) are not covered and are therefore excluded.
3.1.3 The LIMITED WARRANTY applies only to material and manufacturing defects of the COVERED PRODUCTS themselves. The LIMITED WARRANTY does not cover or include (a) any services, including, but not limited to, services or labor by the installation professional of the COVERED PRODUCT, including negligence or intentional breach by the installation professional or non-compliance with the applicable OPERATING INSTRUCTIONS (as defined in Section 2.2) – or (b) materials and equipment provided by the purchaser or any third party or by the installation professional and not by FRONIUS.
3.2 Performance Warranty
3.2.1 FRONIUS warrants that the COVERED PRODUCT will (1) maintain a residual battery capacity ('SOH': expressed as a percentage) in accordance with Section B, calculated based on the usable energy specified there for the respective COUNTRY, until the end of the WARRANTY PERIOD, or (2) achieve the respective energy efficiency level for the respective COUNTRY, whichever occurs first ('PERFORMANCE WARRANTY'). The PERFORMANCE WARRANTY is only valid if the PURCHASED PRODUCT has been operated under normal use in accordance with the OPERATING INSTRUCTIONS.
3.2.2 For the PERFORMANCE WARRANTY, the residual usable energy is measured and calculated by FRONIUS at an ambient temperature of 25±3°C using the following charging/discharging procedure:
- Charge with constant current at 0.2 C (CC, equivalent to 6.17 A) up to a cell voltage of 3.55 V.
- Then, charge with constant voltage (CV) up to 3.55 V and until the charging current drops to ≤ 2 A or the state of charge (SOC) reaches 100%,
- The battery is deactivated for 4 hours (idle state),
- Discharge with constant current at 0.2 C down to a cell cut-off voltage of 2.9 V.
3.2.3 If modules are retrofitted, the terms of the OPERATING INSTRUCTIONS must be observed. Otherwise, the PERFORMANCE WARRANTY does not apply to retrofitted modules.
3.2.4 If a COVERED PRODUCT is replaced or repaired, the replaced or repaired COVERED PRODUCT will be covered by warranty for the remainder of the original WARRANTY PERIOD. The original WARRANTY PERIOD does not restart, is not extended, and a new warranty certificate is not issued because the COVERED PRODUCT has been repaired or replaced.
4. Warranty Exclusions
4.1 The LIMITED WARRANTY does not apply, and defects are not considered COVERED DEFECTS, if they were caused, in whole or in part, by any of the following:
- Normal wear and tear or degradation or surface defects, dents, or marks that do not affect the performance or functionality of the COVERED PRODUCT.
- Misuse, abuse, neglect, or intentional or deliberate acts or omissions.
- Non-compliance with the OPERATING INSTRUCTIONS during installation, commissioning, startup, or operation.
- Improper, unprofessional, negligent, intentionally incomplete, or non-standard installation, commissioning, startup, maintenance, or repair.
- Improper transport, storage, delivery, or packaging.
- Use of the COVERED PRODUCT in a manner inconsistent with its normal use or the OPERATING INSTRUCTIONS or any other maintenance manual or documentation.
- Non-compliance with safety regulations for proper use, including, but not limited to, failure to install necessary software updates in a timely manner.
- Insufficient ventilation of the COVERED PRODUCT.
- Any repair, replacement, modification, opening, or tampering with the COVERED PRODUCT that has not been previously approved by FRONIUS, including the use of materials, equipment, or components not supplied or approved by FRONIUS.
- Events due to circumstances for which FRONIUS is not responsible or that are not due to normal operating conditions, such as (but not limited to) power fluctuations, surges, lightning, fire, water (including condensation), sabotage, accidents, weather conditions, foreign object effects, and damage caused by the WARRANTY HOLDER or third parties.
- Accidents or other events beyond FRONIUS's reasonable control or force majeure events.
- Violations of applicable laws or regulations, including, but not limited to, violations of electrical or building codes or regulations.
- Defective or negligent conditions at the installation site of the COVERED PRODUCT.
- Failure to charge the COVERED PRODUCTS within 14 days with a charge level of 0%.
4.2 Furthermore, the warranty does not cover loss of profit or (consequential) damages suffered by the WARRANTY HOLDER arising from the COVERED PRODUCT, its use, or as a result of material or processing defects (e.g., due to downtime or faulty operation, loss or damage of data caused by the COVERED PRODUCT). The statutory claims of the WARRANTY HOLDER are not affected.
5. Warranty Services
5.1 If a COVERED DEFECT occurs within the WARRANTY PERIOD, FRONIUS will, at its sole discretion and based on the applicable warranty model for the COVERED PRODUCT (see Section 6):
- repair the COVERED PRODUCT,
- or replace the COVERED PRODUCT with a functionally equivalent product (FRONIUS reserves the right to use other or newer devices if necessary),
- or, if no replacement product is available and repair is not possible or would only be possible at disproportionate cost, credit the WARRANTY HOLDER with a credit for the purchase of a new FRONIUS product in the amount calculated as follows: Selling Price x (100 % - useful life / performance warranty period)
6. Warranty Models
6.1 FRONIUS only assumes costs incurred in connection with the warranty services defined in Section 5 to the extent that the respective warranty model 'FRONIUS WARRANTY' or 'FRONIUS WARRANTY PLUS' applicable to the COVERED PRODUCT and the COUNTRY (see Section 2.1 above) applies. Information on the warranty models applicable to the respective COUNTRY can be found in Section B. If the COVERED PRODUCT is located outside the COUNTRY at the time of the claim, any additional costs incurred shall be borne by the WARRANTY HOLDER.
6.2 Warranty Model 'LIMITED WARRANTY FRONIUS WARRANTY'
6.2.1
FRONIUS provides the following as part of the LIMITED WARRANTY FRONIUS WARRANTY:
- The required replacement part or equivalent replacement device - new or refurbished - is provided, or the market value is compensated.
6.2.2
The following costs are not reimbursed by FRONIUS under the LIMITED WARRANTY FRONIUS WARRANTY:
- On-site repair costs incurred in connection with the repair or provision of a replacement part or device (travel costs, installation and removal costs, repair work on the COVERED PRODUCT, working hours, installation and removal of replacement parts, assembly of replacement devices, etc.) or the repair or replacement of the site conditions (e.g., but not limited to, roof materials).
- Shipping or transport costs (including customs duties, export certificates, etc.) of the COVERED PRODUCTS to FRONIUS, to the specialized installation professional, or to a FRONIUS Service Center, as well as the return of replacement parts or devices to the WARRANTY HOLDER or the specialized installation professional.
6.3 Warranty Model 'LIMITED WARRANTY FRONIUS WARRANTY PLUS'
6.3.1
FRONIUS provides the following as part of the LIMITED WARRANTY FRONIUS WARRANTY PLUS:
- The required replacement part or equivalent replacement device - new or refurbished - is provided, or the market value is compensated.
- FRONIUS bears the labor costs directly associated with the removal and replacement of the COVERED PRODUCT, provided these services are performed by FRONIUS or by an authorized installation professional provided by FRONIUS.
- FRONIUS covers the costs of standard domestic shipping (excluding express shipping and excluding air or sea freight) of the COVERED PRODUCTS to the nearest FRONIUS Service Center or to another address specified by FRONIUS, as well as the costs of replacement parts or devices to the WARRANTY HOLDER or the specialized installation professional.
- FRONIUS may, at its sole discretion, arrange for the shipment of a replacement part or product to the WARRANTY HOLDER before the defective COVERED PRODUCT is shipped to FRONIUS. In this case, FRONIUS is entitled to demand financial security from the WARRANTY HOLDER for the value of the replacement part or product, including transport costs, and FRONIUS retains ownership of the replacement part or device until FRONIUS receives the COVERED PRODUCT.
6.3.2
The following costs are not reimbursed by FRONIUS under the LIMITED WARRANTY FRONIUS WARRANTY PLUS:
- Travel costs, customs duties, and export certificates.
- Costs for work on other equipment of the WARRANTY HOLDER that is different from the COVERED PRODUCTS (e.g., necessary modifications to the existing photovoltaic system, home installation, or other equipment).
- Due to technical progress, it is possible that a replacement part or device provided may not be compatible with the monitoring system or other components installed on site. Any resulting expenses and costs are not part of this LIMITED WARRANTY and are not covered by FRONIUS.
- Express delivery costs.
- All other items excluded in Section 6.3.1.
6.3.3
If FRONIUS decides that the COVERED PRODUCT must be repaired or replaced, the WARRANTY HOLDER is obliged to cooperate with the installer to ensure proper or unobstructed access to the COVERED PRODUCT or its delivery to the address specified by FRONIUS. FRONIUS does not assume any costs for repairs, replacements, or installations that have not been pre-approved in writing by FRONIUS.
7. Warranty Period
7.1 The WARRANTY PERIOD begins six (6) months after the initial delivery by FRONIUS.
7.2 The WARRANTY PERIOD is ten (10) years, unless otherwise specified in Clause 3.2.1. Warranty claims must be submitted within the WARRANTY PERIOD in accordance with Section 8.
8. Warranty Claims
8.1
To ensure efficient processing, the WARRANTY HOLDER should first contact the specialized installation professional when a COVERED DEFECT occurs and instruct them to process the warranty claim with FRONIUS and to handle the communication with FRONIUS as described below.
8.2
The WARRANTY HOLDER or the specialized installation professional must notify FRONIUS in writing (email is sufficient) immediately upon discovery of a COVERED DEFECT and in any case before the end of the WARRANTY PERIOD, explaining which COVERED PRODUCT is affected and why this LIMITED WARRANTY applies.
8.3
The WARRANTY HOLDER must provide FRONIUS with the following documents and information:
- the commissioning protocol (including acceptance date, commissioning date, and report from the energy supplier),
- the invoice (including serial number),
- a photograph with a clearly legible rating label,
- further information requested by FRONIUS to assess the COVERED DEFECT and the scope of warranty services to be provided.
8.4
After reviewing the submitted documents and information, FRONIUS will decide, at its sole discretion, on the type of warranty service (within the meaning of Section 5) in accordance with these WARRANTY TERMS. In the event of a repair, FRONIUS will clarify the details, including invoicing, directly with the specialized installation professional.
9. General Provisions
9.1 If any provision of these WARRANTY TERMS is declared or found to be invalid or unenforceable, in whole or in part, this shall not affect the validity or enforceability of the remaining provisions. The invalid or unenforceable provision shall be replaced by a valid or enforceable provision that most closely approximates the material and economic content of the invalid or unenforceable provision.
Notices to FRONIUS concerning the LIMITED WARRANTY or the WARRANTY TERMS should be sent to support@fronius.com or to Fronius International GmbH, Froniusplatz 1, 4600 Wels, Austria.
10. Governing Law, Jurisdiction
10.1 Claims arising from or in connection with the LIMITED WARRANTY or the WARRANTY TERMS shall be governed by Austrian law, excluding the United Nations Convention on Contracts for the International Sale of Goods and the rules of private international law. The place of performance for obligations arising from this warranty is Wels, Austria. If the WARRANTY HOLDER is a consumer within the meaning of Article 6 of Regulation (EC) No 593/2008, the choice of Austrian law shall not deprive the consumer of the protection afforded by the mandatory provisions of the law of the country in which they have their habitual residence, from which they cannot derogate by agreement.
10.2 The exclusive place of jurisdiction for all disputes arising from and in connection with the LIMITED WARRANTY or the WARRANTY TERMS is Wels, Austria. This does not apply if the WARRANTY HOLDER is: a consumer, resides in the European Union, Norway, Iceland, or Switzerland, and FRONIUS has directed its activities to the WARRANTY HOLDER's country of residence.
B. Country-Specific Regulations
11. Country Group 1
11.1 Country Group 1 includes the following countries: Austria, Belgium, Bulgaria, Czech Republic, Denmark, Estonia, Finland, Germany, Hungary, Iceland, Ireland, Latvia, Liechtenstein, Lithuania, Luxembourg, Netherlands, Norway, Poland, Romania, Slovakia, Slovenia, Sweden, Switzerland, Ukraine, United Kingdom.
11.2 In the countries of Country Group 1, the following values apply for the PERFORMANCE WARRANTY according to Section 3.2:
| Product Configuration | Usable Energy | SOH | Total Energy Output |
|---|---|---|---|
| Fronius Reserva 6.3 | 6.31 kWh | 80% | 19.69 MWh |
| Fronius Reserva 9.5 | 9.47 kWh | 29.59 MWh | |
| Fronius Reserva 12.6 | 12.63 kWh | 39.38 MWh | |
| Fronius Reserva 15.8 | 15.79 kWh | 49.28 MWh |
11.3 For Ukraine, the WARRANTY MODEL 'LIMITED WARRANTY FRONIUS WARRANTY' according to Section 6.2 applies during the generally applicable WARRANTY PERIOD according to Section 7.
11.4 For all other countries in Country Group 1, the WARRANTY MODEL 'FRONIUS WARRANTY PLUS' according to Section A.6.3 applies during the generally applicable WARRANTY PERIOD according to Section 7.
11.5 Other specific terms:
a. Other, unnamed overseas and external territories and associated island territories: Not all services and transport costs between Fronius and these territories are covered.
12. Country Group 2
12.1 Country Group 2 includes the following countries: Albania, Andorra, Bosnia-Herzegovina, Croatia, Cyprus, France, Georgia, Greece, Italy, Malta, Macedonia, Montenegro, Portugal, San Marino, Serbia, Spain, Turkey, Vatican City.
12.2 In the countries of Country Group 2, the following values apply for the PERFORMANCE WARRANTY according to Section 3.2:
| Product Configuration | Usable Energy | SOH | Total Energy Output |
|---|---|---|---|
| Fronius Reserva 6.3 | 6.31 kWh | 80% | 16.57 MWh |
| Fronius Reserva 9.5 | 9.47 kWh | 24.86 MWh | |
| Fronius Reserva 12.6 | 12.63 kWh | 33.14 MWh | |
| Fronius Reserva 15.8 | 15.79 kWh | 41.43 MWh |
12.3 For Georgia, the WARRANTY MODEL 'LIMITED WARRANTY FRONIUS WARRANTY' according to Section 6.2 applies during the generally applicable WARRANTY PERIOD according to Section 7.
12.4 For all other countries in Country Group 2, the WARRANTY MODEL 'FRONIUS WARRANTY PLUS' according to Section A.6.3 applies during the generally applicable WARRANTY PERIOD according to Section 7.
12.5 Other specific terms:
a. French overseas territories: Transport is not supported between Fronius and the overseas territories (Dom-Tom).
b. Other, unnamed overseas and external territories and associated island territories: Not all services and transport costs between Fronius and these territories are covered.
13. Country Group 3
13.1 Country Group 3 includes the following countries: Australia, New Zealand.
13.2 In the countries of Country Group 3, the following values apply for the PERFORMANCE WARRANTY according to Section 3.2:
| Product Configuration | Usable Energy | SOH | Total Energy Output |
|---|---|---|---|
| Fronius Reserva 6.3 | 6.31 kWh | 70% | 19.57 MWh |
| Fronius Reserva 9.5 | 9.47 kWh | 29.36 MWh | |
| Fronius Reserva 12.6 | 12.63 kWh | 39.14 MWh | |
| Fronius Reserva 15.8 | 15.79 kWh | 48.93 MWh |
13.3 During the generally applicable WARRANTY PERIOD according to Section 7, the WARRANTY MODEL 'FRONIUS WARRANTY PLUS' according to Section 6.3 applies.
13.4 Other specific terms:
a. Other, unnamed overseas and external territories and associated island territories: Not all services and transport costs between Fronius and these territories are covered.
13.5 Other specific terms:
13.5.1 In Australia, this warranty is provided and all warranty claims in Australia must be addressed to: Fronius Australia Pty Ltd, 90-92 Lambeck Drive, Tullamarine, VIC 3043, Phone +61 (0)3 8340 2900, Email pv-support-australia@fronius.com. The benefits provided to the consumer by this manufacturer's warranty are in addition to other rights and legal remedies available to the consumer under the law, which are not affected by this manufacturer's warranty. Our goods come with guarantees that cannot be excluded under the Australian Consumer Law. You are entitled to a replacement or refund for a major failure and for compensation for any other reasonably foreseeable loss or damage. You are also entitled to have the goods repaired or replaced if the goods fail to be of acceptable quality and the failure does not amount to a major failure. The general terms and conditions of delivery and payment found on our website (www.fronius.com.au) under 'Terms and Conditions' apply, unless these warranty terms provide for more favorable provisions. Prior warranty terms are superseded by these terms.
13.5.2 Section 10.2 does not apply if the WARRANTY HOLDER is a consumer or if the warranty agreement is a small business contract within the meaning of Section 23(4) of Schedule 2 of the Australian Competition and Consumer Act 2010 (Cth).
