CONTACT · RFQ · SUPPORT
Tell us what needs to work.
Product, distributor, installer, OEM/ODM, compatibility and technical-support enquiries are welcome.
Send a structured enquiry
Required fields are kept short. For the fastest technical reply, include the exact inverter model, capacity, country and quantity.
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What helps us respond
- Name, company and country
- Distributor, installer, EPC or service partner
- Application, load and required capacity
- PV capacity and exact inverter model
- Quantity, timeline and target market
- Certification and OEM requirements
Prefer email?
Technical support request
Identify
Battery model, serial number, purchase source, country and installation date.
Describe
Inverter model, firmware, settings, alarm code and when the issue occurs.
Document
Clear photos, wiring overview, screen messages, BMS/inverter logs and test results.
Warranty and service scope are subject to the applicable product configuration, sales contract and approved installation conditions.
For a product quotation
Include the delivery country, requested capacity, quantity and exact inverter model. If you need cables, brackets, wheels, private labels, manuals or other accessories, list them in the message so the quotation can separate included and optional items.
For an existing-system problem
Attach clear photographs of the battery label, inverter label, connections and screen messages. Include the battery serial number, inverter firmware, alarm code and a short description of what happened before the fault.
Direct contact
Email: mark@graspmart.com. Please keep the same email subject when sending additional files so the product and order history remain together.