# Battery charger UPS Mean Well LAD-120B 27.6V 3.4A 120W single output

**URL:** https://aio.lv/en/product--mean-well-lad-120b--9875592
**Data updated:** 2026-02-12 21:54 (EET)
**Category:** Other goods
**Manufacturer:** mean well
**Manufacturer code:** LAD-120B
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 45.57 €
**Prices and availability valid until:** 2026-08-21 23:59
**Price without VAT (21%):** 37.66 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--mean-well-lad-120b--9875592

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | Monday | free |
| Pickup points | 30.07.2026 | 1.79 EUR |
| Courier delivery to door | 30.07.2026 | 4.99 EUR |

## Summary description

Mean Well LAD-120B is a 120W single-output battery charger and UPS designed to provide 27.6V at up to 3.4A. It combines charging and power supply functions for lead-acid or compatible batteries, offering continuous DC output and battery backup for equipment. Suitable for telecom, industrial control and devices requiring regulated 27.6V power and failover protection.

## Long description

Mean Well LAD-120B is a 120W single-output battery charger and UPS that provides a regulated 27.6V DC output with up to 3.4A charging current. Designed for continuous DC power delivery and battery backup, it integrates charging circuitry and an automatic transfer function to keep connected equipment powered during mains interruptions. The unit supports sealed and flooded lead-acid battery types and is intended for installations where a stable 27.6V supply and reliable failover are required, such as telecommunications, industrial controllers and access control systems.
Advantages
The LAD-120B combines a precision battery charger with an uninterrupted power supply function in a compact enclosure, delivering a constant 27.6V output while maintaining battery float charge. Its 120W rating and 3.4A charge capability allow it to support moderate loads while keeping the battery charged. Built-in protections for over-voltage, over-current and reverse connection protect both the charger and the connected battery. The design facilitates easy integration into 24–28V DC systems and reduces the need for separate charger and UPS components.
Suitable for
Telecommunications equipment and base stations requiring 27.6V backup
Industrial control panels and PLCs operating from a 27.6V DC bus
Access control, security and surveillance systems with battery standby
Small server racks or network appliances needing regulated 27.6V supply and failover
Key specifications
Output voltage: regulated 27.6V DC
Maximum charging current: up to 3.4A
Rated power: 120W single output
Battery types supported: sealed and flooded lead-acid compatible
Functions: combined battery charger and automatic UPS/backup transfer
Protections: over-voltage, over-current, reverse polarity protection
Form factor: compact DIN-rail / chassis-mount compatible design (check mounting option)
How to use
Install the LAD-120B according to local electrical codes and the manufacturer’s mounting instructions, ensuring proper ventilation and secure mounting. Connect the AC input to a suitable mains supply and wire the DC output to the load and to a matched lead-acid battery following correct polarity. Configure battery capacity and charge settings if applicable, then power on the unit. During normal operation the charger provides regulated 27.6V to the load while maintaining the battery on float charge; on mains failure the unit transfers to battery supply to maintain output continuity.
Usage recommendations
Use a battery with compatible voltage and sufficient capacity to meet runtime requirements. Periodically inspect battery connections and charge status, maintain adequate ventilation around the unit, and replace batteries according to manufacturer aging guidelines to ensure reliable backup performance.

## FAQ

### How much does the Battery Charger UPS Mean Well LAD-120B 27.6V 3.4A cost, and is it available for purchase?

The price is 45.57 € (valid at the time of publication and already includes all taxes). The item is available for order — 3 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 Monday 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 mean well 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 mean well 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/9875592/52290999_large.webp