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header-product Hybrid solar inverter QOLTEC 53865 3500W with Wi‑Fi, 3500 W continuous output
260.49 €

Hybrid solar inverter QOLTEC 53865 3500W with Wi‑Fi, 3500 W continuous output

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Hybrid solar inverter QOLTEC 53865 3500W Photo 1
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Short description

Hybrid solar inverter QOLTEC 53865 3500W with Wi‑Fi is designed to convert DC from solar panels and batteries into 3500 W AC for household or small commercial use. The unit combines solar MPPT input and battery backup capabilities with integrated Wi‑Fi for monitoring and control. Suitable for off‑grid, backup power and self‑consumption systems, it improves energy independence and provides reliable AC supply.
Available at price 260.49 €: 136 pcs.
Total available for order: 138 pcs.
Warranty: 2 Years
SKU: 11412182
Manufacturer: QOLTEC
free shipment

Cheapest delivery:

Venipak Locker LV

Pick-up points

Venipak Locker LV

Cost

1.89 €

Deliver

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Customer service center
2b. Kengaraga str., Riga, Latvia, LV-1063
06.07.2026 {{selectedOffer.officeDeliveryString}}
free
Courier Delivery Please note that in case of a large parcel additional delivery costs may apply!
09.07.2026 {{selectedOffer.courierDeliveryString}}
From 6.31 € (Weight: 6.89 kg)
Parcel couriers
Venipak Locker LV / Latvijas Pasts pakomāts / Unisend LV / DPD Paku skapis / Omniva LV / Venipak Pickup LV / Latvijas Pasts nodaļa
09.07.2026 {{selectedOffer.parcelStationDeliveryString}}
From 1.89 €
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3 mth. х 86.83 €

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All payment Methods:
Bank transfer, Bank cards on-line, Apple Pay, Google Pay, Installment
36 months installment: from 7.24 euros per month
Together cheaper
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Product information

Description

The QOLTEC 53865 hybrid solar inverter 3500W with Wi‑Fi converts DC power from solar panels and batteries into a 3500 W AC output suitable for household and small commercial applications. The device integrates a solar MPPT input with battery backup functionality and built‑in Wi‑Fi for remote monitoring and control of power flow, providing a compact solution for off‑grid, backup and self‑consumption energy setups.

Advantages

The inverter delivers a continuous AC output of 3500 W while managing solar input and battery charging via an MPPT regulator. Built‑in Wi‑Fi enables remote status monitoring and basic control through compatible apps or web interfaces. The hybrid design supports switching between grid, solar and battery sources to maintain power continuity. Its compact form factor and integrated features reduce the need for additional external controllers.

Suitable for

  • Residential solar systems for daytime self‑consumption and night backup
  • Small commercial premises requiring uninterrupted power for essential loads
  • Off‑grid cabins, holiday homes and remote locations with battery storage
  • Backup power applications where automatic source switching is required

Key specifications

  • Continuous AC output power: 3500 W
  • Hybrid topology with MPPT solar input and battery support
  • Integrated Wi‑Fi for remote monitoring and control
  • AC output suitable for common household and commercial loads
  • Designed for off‑grid, backup and self‑consumption installations

How to use

Install the inverter according to local electrical codes and the manufacturer’s installation guide, mounting it in a dry, ventilated location away from direct sunlight and heat sources. Connect solar panels to the MPPT input and batteries to the designated battery terminals, observing correct polarity. Connect the AC output to the load distribution or transfer switch as required. Configure Wi‑Fi and monitoring via the supplied software or app to view real‑time generation, battery state and system status. Perform a functional test to verify proper operation before placing the system into regular use.

Usage recommendations

Use PV modules and batteries that match the inverter’s voltage and power ranges, and include appropriately rated overcurrent protection and isolation devices. For reliable long‑term operation, maintain adequate ventilation, avoid overloading beyond the continuous 3500 W rating, and follow periodic inspection schedules for wiring and connections. When integrating with a grid supply or other generators, ensure correct configuration of transfer or anti‑islanding settings according to applicable regulations.

Description

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Stock data
Warehouse Stock Delivery to the store Store Price
WH323 136 06.07.2026 Best delivery 260.49 € Best price
EU1 1 07.07.2026 283.49 €
WH356 1 13.07.2026 357.49 €
260.49 €
Stock: 136
Delivery Date: 06.07.2026 Best delivery
Warehouse: WH323
283.49 €
Stock: 1
Delivery Date: 07.07.2026
Warehouse: EU1
357.49 €
Stock: 1
Delivery Date: 13.07.2026
Warehouse: WH356

Customer reviews

Customer questions

FAQ

How much does the Hybrid solar inverter QOLTEC 53865 3500W cost, and is it available for purchase?

The price is 260.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 138 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 06.07.2026 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 solar inverter QOLTEC 53865 3500W 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 solar inverter QOLTEC 53865 3500W 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.
warranty
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.