# Sealed AGM battery Green Cell CSB-1228/AGM55 12V 28Ah for UPS and backup power

**URL:** https://aio.lv/en/product--green-cell-csb-1228agm55--4303730
**Data updated:** 2026-02-12 14:07 (EET)
**Category:** UPS Batteries
**Manufacturer:** Green Cell
**Manufacturer code:** CSB-1228/AGM55
**EAN:** 5907813968334
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 60.49 €
**Prices and availability valid until:** 2026-07-29 23:59
**Price without VAT (21%):** 49.99 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--green-cell-csb-1228agm55--4303730

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 15.07.2026 | free |
| Pickup points | 20.07.2026 | 1.89 EUR |
| Courier delivery to door | 20.07.2026 | 4.99 EUR |

## Summary description

Green Cell CSB-1228/AGM55 is a sealed lead-acid AGM battery with nominal 12V voltage and 28Ah capacity. Designed for UPS systems, emergency lighting, alarm systems and other backup power applications. Maintenance-free, spill-proof construction with reliable discharge and recharge performance to provide stable power for standby and cyclic use.

## Long description

Green Cell CSB-1228/AGM55 is a sealed AGM lead-acid battery with a nominal voltage of 12V and a rated capacity of 28Ah. It is designed for stationary and portable backup power applications, including uninterruptible power supplies (UPS), emergency lighting and alarm systems. The battery features a maintenance-free, spill-proof construction and is intended for both standby and cyclic use where stable discharge and reliable recharge performance are required.
Advantages
The sealed AGM design provides low self-discharge, reduced risk of leakage and the ability to operate in multiple mounting positions. Maintenance-free operation eliminates the need for water topping and simplifies installation and service. The battery delivers consistent voltage under load and supports reliable recharge characteristics suitable for UPS and other backup systems.
Suitable for
Uninterruptible Power Supplies (UPS)
Emergency and safety lighting
Alarm and security systems
Backup power for telecom and network equipment
Portable power and small-scale standby systems
Key specifications
Nominal voltage: 12 V
Rated capacity: 28 Ah
Battery type: Sealed lead-acid, AGM (Absorbent Glass Mat)
Design: Maintenance-free, spill-proof
Intended use: Standby and cyclic applications
How to use
Install the Green Cell CSB-1228/AGM55 in accordance with the equipment manufacturer’s battery compartment instructions, observing correct polarity. Ensure terminals are clean and connections are secure to minimize voltage drop. Charge the battery using a charger appropriate for sealed lead-acid AGM batteries and follow recommended charging voltages and current limits provided by the system or charger manufacturer. Do not open or attempt to service the sealed battery.
Usage recommendations
Store and operate the battery in a dry, ventilated environment at moderate temperatures; avoid prolonged exposure to extreme heat or freezing conditions. For long-term backup systems, perform periodic charging cycles and voltage checks to maintain capacity. Replace the battery when capacity falls below the level required by your UPS or backup device to ensure uninterrupted operation.

## FAQ

### How much does the Green Cell CSB-1228/AGM55 12V 28Ah AGM battery cost, and is it available for purchase?

The price is 60.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 61 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 15.07.2026 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 Green Cell 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 Green Cell 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/4303730/21679887_large.webp