{{ totalProductsCount }}

In cart {{totalProductsCount}} item(s)

Total:
{{sum | formatAmount}}

Your cart is empty

header-product Off-grid solar inverter QOLTEC 3500W model 53864 for standalone photovoltaic systems
232.49 €

Off-grid solar inverter QOLTEC 3500W model 53864 for standalone photovoltaic systems

Off-grid solar inverter QOLTEC 3500W 53864 Photo 1
Off-grid solar inverter QOLTEC 3500W 53864 Photo 2
Off-grid solar inverter QOLTEC 3500W 53864 Photo 3
Off-grid solar inverter QOLTEC 3500W 53864 Photo 4
Off-grid solar inverter QOLTEC 3500W 53864 Photo 5
Off-grid solar inverter QOLTEC 3500W 53864 Photo 6
Off-grid solar inverter QOLTEC 3500W 53864 Photo 7
Off-grid solar inverter QOLTEC 3500W 53864 Photo 8
Off-grid solar inverter QOLTEC 3500W 53864 Photo 9
Off-grid solar inverter QOLTEC 3500W 53864 Photo 10
Off-grid solar inverter QOLTEC 3500W 53864 Photo 1
Off-grid solar inverter QOLTEC 3500W 53864 Photo 2
Off-grid solar inverter QOLTEC 3500W 53864 Photo 3
Off-grid solar inverter QOLTEC 3500W 53864 Photo 4
Off-grid solar inverter QOLTEC 3500W 53864 Photo 5
Off-grid solar inverter QOLTEC 3500W 53864 Photo 6
Off-grid solar inverter QOLTEC 3500W 53864 Photo 7
Off-grid solar inverter QOLTEC 3500W 53864 Photo 8
Off-grid solar inverter QOLTEC 3500W 53864 Photo 9
Off-grid solar inverter QOLTEC 3500W 53864 Photo 10
Keep track of price changes You keep track of price changes
Watch the price drop

Leave your address - as soon as the price of the product goes down, you'll know about it right away

You keep track of price changes

Off-grid solar inverter QOLTEC 3500W model 53864 for standalone photovoltaic systems

{{email}}
You keep track of price changes

Off-grid solar inverter QOLTEC 3500W model 53864 for standalone photovoltaic systems

{{email}}
{{selectedOffer && selectedOffer.price | formatAmount}}

Short description

Off-grid solar inverter QOLTEC 3500W (model 53864) converts DC from photovoltaic panels or batteries into AC for standalone power systems. Designed for off-grid use, it supports typical household and small commercial loads, provides continuous 3500W output, and protects equipment with built-in safety features. Suitable for remote cabins, backup power, and mobile installations.
Available for order: 26 pcs.
Warranty: 2 Years
SKU: 11419565
Manufacturer: QOLTEC
free shipment

Cheapest delivery:

Venipak Locker LV

Pick-up points

Venipak Locker LV

Cost

1.89 €

Deliver

{{selectedOffer.parcelStationDeliveryString}}

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 4.99 € (Weight: 5.00 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 €
0 credit

pay in 3 equal parts

today

0 €

afterward

3 mth. х 77.5 €

overpayment

0 €

All payment Methods:
Bank transfer, Bank cards on-line, Apple Pay, Google Pay, Installment
36 months installment: from 6.46 euros per month
Together cheaper
{{product.price | formatAmount}}
{{product.title}}
{{productBundle.reference.specialPrice | formatAmount}}
{{productBundle.title}}
{{productBundlePreviousPrice | formatAmount}}
{{productBundleSpecialPrice | formatAmount}}

You saving {{productBundleYouSave | formatAmount}}

Product information

Description

Off-grid solar inverter QOLTEC 3500W model 53864 converts DC power from photovoltaic panels or battery banks into AC power for standalone photovoltaic systems. Designed for off-grid operation, the inverter provides a continuous 3500W AC output and incorporates built-in protective functions to safeguard connected equipment and the unit itself. The device is suitable for typical household and small commercial loads, remote cabins, backup power and mobile installations such as RVs or boats.

Advantages

The QOLTEC 3500W inverter delivers a stable continuous output of 3500W for off-grid applications and performs reliable DC-to-AC conversion for photovoltaic arrays and battery systems. Integrated safety features reduce the risk of damage to appliances and the inverter, and the product is engineered specifically for standalone (off-grid) use where grid connection is unavailable or not required.

Suitable for

  • Remote cabins and off-grid homes
  • Backup power for essential household loads
  • Mobile installations (RVs, boats)
  • Small commercial sites or workshops without grid access
  • Standalone photovoltaic systems with battery storage

Key specifications

  • Brand: QOLTEC
  • Model: 53864
  • MPN: 53864
  • EAN: 5901878538648
  • Category: Power Inverters
  • Continuous AC output: 3500W
  • Function: DC to AC conversion for standalone photovoltaic systems
  • Designed for: off-grid (standalone) operation with built-in safety features

How to use

Install the inverter in a dry, well-ventilated location following the manufacturer's installation guide. Connect the DC input to a compatible photovoltaic array or battery bank, ensuring correct polarity and secure connections. Connect the AC output to the intended load or distribution panel in accordance with local electrical regulations. Confirm the total continuous load does not exceed the 3500W rating and install protective devices (fuses, circuit breakers) where required. For final wiring and commissioning, engage a qualified installer or electrician.

Usage recommendations

Match inverter capacity to expected household or site loads and size the photovoltaic array and battery storage to meet daily energy requirements. Provide adequate ventilation and secure mounting, apply grounding and surge protection practices, and consult the QOLTEC user manual and applicable local electrical codes before connecting the system. For complex installations or persistent faults, contact a certified installer.

hot
The product description was generated using AI technologies based on the customer's request. Inaccuracies may occur.

Description

Machine translation. Load original

Similar products

{{product.title}} Show details Hide details

{{highlightedFeature.featureTitle}}:

{{getProductFeatureValueById(product, highlightedFeature.featureId)}}

{{product.price | formatAmount}}
Might be useful
{{product.manufacturerName}}
{{product.categoryName}}
{{product.title}}
{{product.specialPrice}}
{{product.price}}

Customer reviews

Customer questions

FAQ

How much does the Off-grid solar inverter QOLTEC 3500W 53864 cost, and is it available for purchase?

The price is 232.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 26 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 Off-grid solar inverter QOLTEC 3500W 53864 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 3500W 53864 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.
shipping
Fast Delivery Get your orders as quickly as possible — right to your door, parcel lockers, or pickup points across Latvia and the EU.
payment
Secure Payment Pay the way you prefer: cash, VISA, MasterCard, Apple Pay, Google Pay, bank transfer, or 0% installment plan.
warranty
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.