# Battery COSI CSB-44.9 GEL 4V 4.9Ah GEL lead‑acid with T1 terminal

**URL:** https://aio.lv/en/product--cosi-csb-449-gel--10634248
**Data updated:** 2026-02-12 22:01 (EET)
**Category:** Batteries
**Manufacturer:** COSI
**Manufacturer code:** CSB-44.9 GEL
**EAN:** 3100001461347
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 7.96 €
**Prices and availability valid until:** 2026-07-21 23:59
**Price without VAT (21%):** 6.58 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--cosi-csb-449-gel--10634248

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 02.07.2026 | free |
| Pickup points | 07.07.2026 | 1.89 EUR |
| Courier delivery to door | 07.07.2026 | 4.99 EUR |

## Summary description

Sealed GEL lead‑acid battery COSI CSB-44.9 GEL with nominal voltage 4V and capacity 4.9Ah. Equipped with T1 terminals, it provides maintenance‑free power for backup systems, emergency lighting, alarm systems, and small UPS units. Designed for stable performance, low self‑discharge and safe operation in compact installations.

## Long description

Sealed GEL lead‑acid battery COSI CSB-44.9 GEL provides a nominal voltage of 4V and a capacity of 4.9Ah in a compact, maintenance‑free design. The battery uses GEL electrolyte technology to reduce gas emission and minimize water loss, delivering reliable standby power in small enclosures. T1 terminals allow simple connection to emergency lighting, alarm systems, compact UPS units and other low‑voltage backup applications where stable, long‑term performance and low self‑discharge are required.
Advantages
The GEL construction ensures leak‑free operation and enhanced vibration resistance compared with flooded cells. Low self‑discharge characteristics extend shelf life and reduce the need for frequent charging in standby applications. The maintenance‑free sealed design eliminates topping up and simplifies installation in confined spaces. T1 terminals provide secure, low‑profile connections compatible with a wide range of existing devices and mounting configurations.
Suitable for
 Emergency lighting and exit signage
 Security and alarm panels
 Small uninterruptible power supply (UPS) units
 Telecommunication backup and small control systems
 Portable equipment requiring compact sealed lead‑acid power
Key specifications
 Nominal voltage: 4 V
 Capacity: 4.9 Ah (rated)
 Electrolyte type: Absorbed glass mat / GEL (sealed gel lead‑acid)
 Terminal type: T1 (faston/quick‑connect style)
 Design: Valve‑regulated sealed lead‑acid, maintenance‑free
 Typical applications: Standby and cyclic use in small devices
How to use
Install the battery in a dry, well‑ventilated location away from direct heat sources. Ensure correct polarity when connecting to the device using the T1 terminals and secure connections to prevent intermittent contact. Use a charger or charger/maintainer compatible with sealed GEL lead‑acid batteries and follow recommended charging voltages for standby or cyclic service. Observe manufacturer guidelines of the host device for mounting orientation and clearances; the sealed design permits installation in many compact enclosures but avoid excessive vibration and temperatures outside the specified range.
Usage recommendations
For best long‑term performance, store the battery charged and perform periodic float charging if the battery is held in standby for extended periods. Use a charger designed for GEL lead‑acid chemistry and avoid overcharging to preserve capacity and service life. Replace batteries that show significant capacity loss or visible damage; never attempt to open or service the sealed unit.

## FAQ

### How much does the Battery COSI CSB-44.9 GEL 4V 4.9Ah cost, and is it available for purchase?

The price is 7.96 € (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 02.07.2026 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 COSI 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 COSI 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/10634248/54826200_large.webp