# Smart Microprocessor Battery Charger QOLTEC for AGM/GEL/LiFePO4 12V 12A with Repair Function

**URL:** https://aio.lv/en/product--qoltec-eb288214880--12365830
**Data updated:** 2026-04-26 18:54 (EEST)
**Category:** Battery chargers
**Manufacturer:** QOLTEC
**Manufacturer code:** EB288214880#
**EAN:** 310000243995
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 36.43 €
**Prices and availability valid until:** 2026-07-12 23:59
**Price without VAT (21%):** 30.11 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--qoltec-eb288214880--12365830

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 22.06.2026 | free |
| Pickup points | 29.06.2026 | 1.99 EUR |
| Courier delivery to door | 29.06.2026 | 4.99 EUR |

## Summary description

12V 12A smart microprocessor battery charger by QOLTEC designed for charging AGM, GEL and LiFePO4 batteries. Features multiple charging modes, automatic current and voltage regulation, and a repair function to attempt recovery of deeply discharged cells. Ideal for maintaining and restoring 12V lead‑acid and LiFePO4 batteries in vehicles, boats and backup systems.

## Long description

The Smart Microprocessor Battery Charger QOLTEC for AGM/GEL/LiFePO4 12V 12A with Repair Function is a compact charger designed for 12V battery systems. It supports AGM, GEL and LiFePO4 chemistries and provides regulated charging current up to 12A with automatic voltage and current control. The unit includes multiple charging modes and a dedicated repair function that attempts to recover deeply discharged cells, making it suitable for routine maintenance and occasional restoration of vehicle, marine and backup batteries.
Advantages
This charger uses microprocessor control to manage multi‑stage charging profiles and to adapt charging parameters to the connected battery type, improving charging efficiency and helping to prevent overcharge. The repair function applies controlled low‑current pulses to attempt recovery of sulfated or deeply discharged lead‑acid cells. Compact construction and clear status indicators simplify installation and monitoring. Automatic regulation of current and voltage reduces the need for manual intervention during normal use.
Suitable for
Maintenance charging of 12V AGM and GEL lead‑acid batteries
Charging and balancing of 12V LiFePO4 batteries in small systems
Restoring deeply discharged or sulfated 12V lead‑acid batteries using the repair mode
Use in cars, small boats, motorcycles, caravans and standby power systems
When it may not be suitable
This charger is designed for 12V battery systems and is not suitable for higher‑voltage battery banks without appropriate DC‑DC conversion. It is not intended for use with lithium chemistries other than LiFePO4, or with batteries that have internal damage such as a shorted cell; in such cases replacement may be required. The repair function can attempt recovery but cannot guarantee restoration of batteries that are physically or chemically irreversibly damaged.
Key specifications
Nominal battery voltage: 12V
Maximum charging current: 12A
Supported battery types: AGM, GEL, LiFePO4
Charging modes: multi‑stage (including bulk, absorption, float) and repair mode
Protection features: automatic current and voltage regulation, polarity protection, overcharge prevention
Form factor: compact tabletop or panel‑mountable unit with connection leads and indicators
How to use
Connect the charger to the battery following the polarity markings: positive to positive, negative to negative. Select the appropriate battery type before initiating charge if the unit provides manual mode selection; otherwise the charger will detect and apply a suitable profile. Monitor the charger indicators to follow charging progress and wait until the charger reaches float or maintenance mode to disconnect for long‑term maintenance. Use the repair function only when a battery is deeply discharged and conventional charging does not start; follow safety instructions and manufacturer guidance when attempting repair cycles.
What to consider before purchase
Confirm compatibility with your battery chemistry and nominal voltage (12V systems only)
Check the battery capacity and ensure the 12A maximum charging current is appropriate
Verify required protections (reverse polarity, overcharge) are present for safe operation
Ensure physical dimensions and connection type suit your installation location
Usage recommendations
For routine maintenance, keep the charger connected in float/maintenance mode to maintain state of charge without overcharging. Use the repair function sparingly and only when necessary; if a battery does not respond after repair attempts, consider professional testing or replacement. Follow standard battery safety practices: work in a ventilated area, avoid sparks, and use protective equipment when connecting or disconnecting.

## FAQ

### How much does the QOLTEC 12V 12A Smart Battery Charger cost, and is it available for purchase?

The price is 36.43 € (valid at the time of publication and already includes all taxes). The item is available for order — 8 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 22.06.2026 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/12365830/68371435_large.webp