# COSI AGM VRLA Lead-Acid Battery 12V 1.3Ah T1 Terminal

**URL:** https://aio.lv/en/product--cosi-csb-1213--2013538
**Data updated:** 2026-11-03 02:04 (EET)
**Category:** UPS Batteries
**Manufacturer:** COSI
**Manufacturer code:** CSB-121.3
**EAN:** 3100000074432
**Warranty:** 2 Years
**Availability:** Out of stock

## Summary description

COSI VRLA AGM lead-acid battery with 12V voltage and 1.3Ah capacity. Features T1 terminals (4.75mm), maintenance-free design, dimensions 97x43.5x53mm, and weight up to 0.70kg. Designed for UPS, security systems, emergency lighting, and telecommunications.

## Long description

The COSI AGM VRLA Lead-Acid Battery 12V 1.3Ah T1 Terminal is a reliable and compact energy storage solution utilizing advanced Absorbed Glass Mat technology. Designed to deliver consistent power, this maintenance-free lead-acid battery features a sealed construction that prevents electrolyte leakage and allows for flexible installation in various positions. It is engineered to meet the demanding backup power requirements of modern electronic devices and critical infrastructure.
Advantages
This battery incorporates AGM technology where the electrolyte is absorbed into microscopic fiberglass mats, enhancing internal efficiency and durability. The sealed valve-regulated design ensures that the unit requires no active maintenance throughout its operational lifespan and prevents spills regardless of the mounting orientation. Its compact physical footprint and lightweight construction make it easy to integrate into restricted spaces within electronic enclosures and backup systems.
Suitable for
Uninterruptible power supply units
Security and alarm systems
Fire safety systems
Emergency lighting installations
Telecommunication systems
Electronic cash registers
Electric scales
Electric bicycles
When it may not be suitable
This battery is not designed to serve as a primary high-capacity traction power source for heavy-duty electric vehicles or large machinery. Due to its specific capacity limitations, it should not be applied in scenarios demanding continuous deep-cycle discharge at high amp draws.
Key specifications
Nominal voltage: 12 Volts
Capacity: 1.3 Amp-hours
Terminal type: T1 measuring 4.75 mm in width
Technology: AGM VRLA lead-acid
Dimensions: 97 mm length, 43.5 mm width, 53 mm height
Weight: Maximum 0.70 kg
How to use
Connect the battery to a compatible charging system or equipment using appropriate T1 terminal connectors, ensuring correct polarity alignment during installation. The unit can be placed in any orientation except inverted, thanks to the sealed AGM construction. Recharge the battery promptly following a discharge cycle to maintain optimal capacity and prevent premature degradation.
What to consider before purchase
Verify that the physical dimensions of 97x43.5x53 mm fit your device compartment
Confirm that the T1 terminal type matches your existing wiring connectors
Ensure the 12V voltage and 1.3Ah capacity align with your equipment power requirements
Usage recommendations: Store the battery in a clean, dry, and temperature-controlled environment when not in use. Perform periodic inspections of the terminals and housing, and recharge the unit regularly during extended storage to prevent self-discharge damage.

## FAQ

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer. 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