# 12V 0.8Ah GEL Lead-Acid Battery COSI CSB-120.8 for standby power and small UPS

**URL:** https://aio.lv/en/product--cosi-csb-1208-gel--10634250
**Data updated:** 2026-02-12 22:01 (EET)
**Category:** Batteries
**Manufacturer:** COSI
**Manufacturer code:** CSB-120.8 GEL
**EAN:** 3100001461286
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 9.14 €
**Prices and availability valid until:** 2026-07-28 23:59
**Price without VAT (21%):** 7.55 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--cosi-csb-1208-gel--10634250

## 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

Sealed 12V 0.8Ah GEL lead-acid battery by COSI, model CSB-120.8 GEL. Designed for standby power, small uninterruptible power supplies (UPS), alarm systems, and compact equipment requiring a maintenance-free rechargeable battery. Valve-regulated GEL construction reduces leakage and allows flexible mounting. Provides reliable short-term backup and cyclic support in compact installations.

## Long description

Sealed 12V 0.8Ah GEL lead-acid battery COSI CSB-120.8 is designed to provide maintenance-free standby power and short-term backup for compact installations. The valve-regulated GEL construction minimizes electrolyte leakage and permits flexible mounting orientations, making this battery suitable for small UPS units, alarm systems and other devices that require a dependable rechargeable power source in a compact form factor.
Advantages
The GEL electrolyte and valve-regulated design ensure a sealed, maintenance-free battery that resists leakage and vibration. Its compact 12V 0.8Ah capacity delivers reliable short-term backup and supports cyclic use in small equipment. The battery’s sealed construction reduces the need for ventilation and simplifies installation in confined or upright/sideways mounting positions.
Suitable for
Small uninterruptible power supplies (UPS) for consumer or small office equipment
Alarm and security systems requiring a compact standby battery
Compact electronic devices and control units that need short-term backup
Portable or installation-constrained applications where sealed, maintenance-free power is required
Key specifications
Nominal voltage: 12 V
Nominal capacity: 0.8 Ah
Battery type: GEL lead-acid, valve-regulated, sealed
Designed use: standby power and cyclic support for compact equipment
How to use
Install the COSI CSB-120.8 in accordance with the equipment manufacturer’s instructions, observing correct polarity and secure terminal connections. Use in well-matched charging systems designed for sealed GEL lead-acid batteries and follow recommended charge voltages and temperature compensation specified by the charging device. For standby applications, connect the battery to the UPS or alarm system as directed and verify proper operation and charging status after installation.
Usage recommendations
Store and operate the battery within the temperature range recommended by the equipment manufacturer; avoid exposure to extreme temperatures. Periodically check connected equipment for correct charging behavior and replace the battery at the end of its service life or if capacity becomes insufficient for the intended backup duration.

## FAQ

### How much does the 12V 0.8Ah GEL Lead-Acid Battery COSI CSB-120.8 cost, and is it available for purchase?

The price is 9.14 € (valid at the time of publication and already includes all taxes). The item is available for order — 10 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 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

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