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header-product Hybrid off-grid solar inverter QOLTEC 3.5kVA/3.5kW 100A MPPT LCD BMS Pure Sine
383.49 €

Hybrid off-grid solar inverter QOLTEC 3.5kVA/3.5kW 100A MPPT LCD BMS Pure Sine

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Hybrid off-grid solar inverter QOLTEC 3.5kVA/3.5kW 100A MPPT LCD BMS Pure Sine

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Short description

Hybrid off-grid solar inverter QOLTEC with 3.5kVA (3.5kW) output and 100A battery current support. Integrated MPPT charge controller, LCD display for status and settings, and BMS compatibility for battery management. Designed for standalone solar systems to convert DC from panels/batteries to AC for household or small commercial loads, backup power, and energy storage integration.
Available for order: 1 pcs.
Warranty: 2 Years
SKU: 11079655
Manufacturer: QOLTEC
free shipment

Cheapest delivery:

Venipak Pickup LV, Venipak Locker LV

Pick-up points

Venipak Pickup LV

Venipak Locker LV

Cost

1.89 €

Deliver

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Customer service center
2b. Kengaraga str., Riga, Latvia, LV-1063
20.07.2026 {{selectedOffer.officeDeliveryString}}
free
Courier Delivery Please note that in case of a large parcel additional delivery costs may apply!
23.07.2026 {{selectedOffer.courierDeliveryString}}
From 6.32 € (Weight: 6.90 kg)
Parcel couriers
Venipak Pickup LV / Venipak Locker LV / Latvijas Pasts pakomāts / Unisend LV / DPD Paku skapis / Omniva LV / Latvijas Pasts nodaļa
23.07.2026 {{selectedOffer.parcelStationDeliveryString}}
From 1.89 €
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3 mth. х 127.83 €

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All payment Methods:
Bank transfer, Bank cards on-line, Apple Pay, Google Pay, Installment
36 months installment: from 10.65 euros per month
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Product information

Description

The Hybrid off-grid solar inverter QOLTEC 3.5kVA/3.5kW 100A MPPT LCD BMS Pure Sine is a compact hybrid inverter designed for standalone solar systems. It converts DC power from solar panels and batteries into clean pure sine AC suitable for household and small commercial appliances. The unit combines inverter, MPPT solar charge controller and battery management compatibility in a single enclosure, with an LCD for system status, configuration and fault information.

Advantages

This hybrid inverter provides continuous 3.5 kW output with pure sine wave quality for stable operation of sensitive electronics. The integrated MPPT charger optimizes solar energy harvest with up to 100 A battery charging capability, reducing dependence on external charge controllers. LCD feedback offers clear monitoring of input, output and battery parameters, and BMS compatibility enables coordinated battery protection and longer service life. Compact design simplifies installation in off-grid and backup setups.

Suitable for

  • Standalone residential solar systems for powering household appliances
  • Small commercial sites requiring backup power and off-grid operation
  • Energy storage systems combining solar panels and batteries with BMS integration
  • Backup power for medical devices, communication equipment, and office electronics

Key specifications

  • Rated power output: 3.5 kW (3.5 kVA)
  • Waveform: Pure sine wave output suitable for sensitive loads
  • Battery charging current: up to 100 A via integrated MPPT controller
  • Integrated MPPT charge controller for efficient solar harvesting
  • LCD display for status, settings and fault diagnostics
  • BMS compatibility for coordinated battery management
  • Suitable for DC input from solar panels and batteries; AC output for household loads

How to use

Install the inverter on a stable, ventilated surface away from direct sunlight and moisture. Connect the DC side to a solar array and battery bank following polarity and recommended cable sizing; connect AC output to the consumer distribution or loads via appropriate circuit protection. Use the LCD interface to configure charging parameters, AC priority and system modes. Verify BMS communication wiring if integrating an intelligent battery management system. Perform initial checks of input voltages and system grounding before enabling the inverter.

Usage recommendations

For reliable operation, use batteries and wiring sized for the inverter's 3.5 kW output and 100 A charging current. Ensure the BMS settings match the inverter charge profile and regularly monitor the LCD for warnings or fault codes. Maintain adequate ventilation and keep firmware and configuration aligned with manufacturer guidance where available.

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Customer questions

FAQ

How much does the Hybrid off-grid inverter QOLTEC 3.5kVA 3.5kW cost, and is it available for purchase?

The price is 383.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 1 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 20.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay, Installment. All transactions are 100% secure and encrypted.

Can Hybrid off-grid inverter QOLTEC 3.5kVA 3.5kW be purchased with a lease?

Yes, the purchase is available both on credit and with an interest-free installment plan. We work with leading banks and leasing companies in Latvia, allowing you to make your purchase on convenient terms — with a minimal down payment and a repayment period from 3 to 36 months. You can apply for credit or installments for the Hybrid off-grid inverter QOLTEC 3.5kVA 3.5kW online, and the application process is as simple as possible:
  • Select the product on the website and add it to your cart;
  • When placing your order, choose the payment method “Installments”;
  • Fill in the required details for the lending partner;
  • Receive a decision within a few minutes.
For more information about available payment options, interest-free installment terms, and credit conditions in Latvia, please visit the Payment page.

Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

What is the warranty period?

All QOLTEC products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized QOLTEC service centers and through AiO.lv

Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. We will assist with consultation, warranty claim processing, and coordination with certified service centers.
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14-Day Return Policy We are confident in our quality, but if the purchase doesn’t fit — you have 14 days to return the product with peace of mind.
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Quality Since 2008 AiO.lv has been on the market for over 18 years and has earned trust — with more than 6000 genuine positive reviews on Google.