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header-product Off-grid solar inverter QOLTEC 11000W model 53862, pure sine wave, battery-charger compatible
776.99 €

Off-grid solar inverter QOLTEC 11000W model 53862, pure sine wave, battery-charger compatible

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Off-grid solar inverter QOLTEC 11000W 53862 Photo 1
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Off-grid solar inverter QOLTEC 11000W 53862 Photo 11
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Off-grid solar inverter QOLTEC 11000W model 53862, pure sine wave, battery-charger compatible

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Short description

Off-grid solar inverter QOLTEC 11000W model 53862 converts DC from batteries or solar arrays to AC for standalone systems. Designed for off-grid use, it delivers 11 kW continuous output, supports pure sine wave output and battery charging, and is suitable for powering household appliances, tools and small commercial loads. Offers reliable power conversion and integration with battery banks.
Available for order: 35 pcs.
Warranty: 2 Years
SKU: 11424040
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 12.97 € (Weight: 16.40 kg)
Parcel couriers
Venipak Locker LV / Latvijas Pasts pakomāts / Unisend LV / DPD Paku skapis / Omniva LV
09.07.2026 {{selectedOffer.parcelStationDeliveryString}}
From 1.89 €
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3 mth. х 259 €

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All payment Methods:
Bank transfer, Bank cards on-line, Apple Pay, Google Pay, Installment, Leasing for legal entities
36 months installment: from 21.58 euros per month
Leasing for legal entities: from 27.04 euros per month
Together cheaper
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Product information

Description

The QOLTEC 11000W off-grid solar inverter model 53862 is a standalone power conversion device that transforms DC from battery banks or solar arrays into AC suitable for household and small commercial equipment. Designed for off-grid applications, this inverter delivers a continuous output of 11 kW with a pure sine wave output, ensuring stable and clean power for sensitive electronics, motors and appliances. It also includes a built-in battery charger function to manage charging from AC sources when available, enabling hybrid operation and flexible energy management in systems without grid connection.

Advantages

This inverter produces a pure sine wave output to reduce electrical noise and protect sensitive devices. With an 11 kW continuous rating it supports high-demand loads while maintaining stable voltage and frequency. The integrated battery charger function simplifies system design by allowing controlled charging of battery banks from AC sources, and the unit is engineered for off-grid reliability with features that support battery integration and standalone operation.

Suitable for

  • Powering household appliances such as refrigerators, washing machines and lighting in off-grid homes
  • Supplying small commercial loads including workshops, shops and remote offices
  • Integrating with solar PV arrays and battery banks for standalone energy systems
  • Running sensitive electronics and motor-driven equipment that require a pure sine wave

Key specifications

  • Continuous AC output power: 11000 W
  • Output waveform: pure sine wave
  • Input sources: DC from batteries or solar arrays, AC for battery charging
  • Integrated battery charger: included (specifications depend on installation)
  • Application: off-grid standalone inverter for residential and small commercial systems

How to use

Install the inverter according to local electrical codes and manufacturer guidance, mounting it in a dry, ventilated location with adequate clearance. Connect the DC input to a compatible battery bank with appropriately sized cables and fuses; connect the AC output to the distribution panel or loads. If using the battery charger function, connect an AC source as required and configure charging parameters per battery type. Commission the system by verifying DC voltages, polarity, and protective devices before energizing the AC output, and monitor performance during initial operation.

Usage recommendations

Use appropriately sized battery capacity and cabling to match the 11 kW continuous output; ensure overcurrent protection and correct grounding. For reliable operation, select batteries compatible with the inverter's charger settings and perform periodic maintenance checks on connections, ventilation, and firmware updates where applicable. When powering inductive loads, account for high startup currents and configure system protections accordingly.

Description

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Customer reviews

Customer questions

FAQ

How much does the Off-grid solar inverter QOLTEC 11000W 53862 cost, and is it available for purchase?

The price is 776.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 35 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, Leasing for legal entities. All transactions are 100% secure and encrypted.

Can Off-grid solar inverter QOLTEC 11000W 53862 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 Off-grid solar inverter QOLTEC 11000W 53862 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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Fast Delivery Get your orders as quickly as possible — right to your door, parcel lockers, or pickup points across Latvia and the EU.
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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.