# Charger QOLTEC Intelligent microprocessor 12V/24V 25A — rectifier with repair function for AGM and GEL batteries

**URL:** https://aio.lv/en/product--qoltec-eb1997419513--11644325
**Data updated:** 2026-02-16 06:59 (EET)
**Category:** Battery chargers
**Manufacturer:** QOLTEC
**Manufacturer code:** EB1997419513#
**EAN:** 310000231957
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 60.18 €
**Prices and availability valid until:** 2026-07-29 23:59
**Price without VAT (21%):** 49.74 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--qoltec-eb1997419513--11644325

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 06.07.2026 | free |
| Pickup points | 09.07.2026 | 1.89 EUR |
| Courier delivery to door | 09.07.2026 | 4.99 EUR |

## Summary description

Microprocessor-controlled QOLTEC charger providing 12V and 24V charging at up to 25A. Acts as a rectifier and includes a battery repair/maintenance function for AGM and GEL lead-acid batteries. Designed for workshop, garage or stationary installations to charge, maintain and recover sulfated batteries. Offers automatic voltage detection and regulated current for safe, efficient charging.

## Long description

QOLTEC Intelligent microprocessor charger delivers regulated charging for 12V and 24V lead-acid battery systems with up to 25A output. Designed as a workshop or stationary rectifier, the unit provides automatic voltage detection and microprocessor-controlled charging stages to ensure efficient energy delivery and reduce overcharging risk. The charger also features a repair/maintenance mode specifically intended for AGM and GEL batteries to help recover and maintain batteries affected by sulfation.
Advantages
The microprocessor control enables adaptive charging curves, automatic voltage recognition and current regulation for safe operation across different battery voltages. The repair function offers a controlled desulfation routine for AGM and GEL batteries, extending service life when recovery is possible. Compact design and straightforward connections make the device suitable for fixed installation in workshops, garages or other service areas where reliable battery charging and maintenance are required.
Suitable for
 Charging and maintaining 12V and 24V lead-acid batteries
 Workshops and garages for routine battery service
 Recovery of sulfated AGM and GEL batteries
 Stationary installations where a compact rectifier is needed
Key specifications
 Output voltages: automatic selection between 12V and 24V
 Maximum charging current: up to 25 A
 Microprocessor-controlled multi-stage charging algorithm
 Repair/desulfation mode for AGM and GEL lead-acid batteries
 Protections: regulated current and overcharge prevention via controlled charging stages
 Intended use: stationary/bench installation in non-mobile environments
How to use
Place the charger on a stable, dry surface and ensure adequate ventilation around the unit. Connect the charger to the battery following correct polarity: positive terminal to positive, negative to negative. The charger will automatically detect the battery system voltage (12V or 24V) and start the appropriate charging sequence. For batteries showing signs of sulfation, select the repair mode according to the charger’s user interface or settings, then monitor charging progress and battery temperature periodically. Disconnect the charger once the charging cycle or maintenance routine is complete and the battery is within recommended voltage ranges.
Usage recommendations
Use the charger in well-ventilated areas and avoid exposing the device to moisture or direct heat sources. For best results with AGM and GEL batteries, follow manufacturer guidance for charge and maintenance voltages, and do not leave the battery unattended for extended periods during aggressive recovery cycles. Regular inspection of battery terminals and electrolyte condition (where applicable) improves safety and charging effectiveness.

## FAQ

### How much does the QOLTEC Intelligent microprocessor charger 12V/24V 25A cost, and is it available for purchase?

The price is 60.18 € (valid at the time of publication and already includes all taxes). The item is available for order — 2 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. All transactions are 100% secure and encrypted.

### 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. More information about warranty service: https://aio.lv/en/warranty

## Image

https://aio.lv/img/cache/product/11644325/66896256_large.webp