# 12V 17Ah GEL Lead-Acid Battery COSI CSB-1217 GEL — 12V 17Ah, GEL, terminal T1 (4.75 mm)

**URL:** https://aio.lv/en/product--cosi-csb-1217-gel--10634243
**Data updated:** 2026-03-07 17:56 (EET)
**Category:** Batteries
**Manufacturer:** COSI
**Manufacturer code:** CSB-1217 GEL
**EAN:** 3100001461491
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 45.77 €
**Prices and availability valid until:** 2026-07-22 23:59
**Price without VAT (21%):** 37.83 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--cosi-csb-1217-gel--10634243

## 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 12V 17Ah GEL lead-acid battery COSI CSB-1217 GEL with immobilized electrolyte for maintenance-free operation. Features GEL technology for deeper discharge tolerance and improved cycling, rated capacity 17Ah at 12V, and T1 (4.75 mm) terminal type for standard connections. Suited for backup power, alarm systems, UPS, mobility aids and renewable installations requiring compact, valve-regulated storage.

## Long description

Sealed 12V 17Ah GEL lead-acid battery COSI CSB-1217 GEL provides valve-regulated, maintenance-free energy storage with immobilized electrolyte. Designed for applications that require compact, stable power, this GEL battery delivers a rated capacity of 17Ah at 12V and uses GEL technology to improve tolerance to deeper discharges and cycling life. The battery is equipped with T1 (4.75 mm) terminals for common, reliable connection in small and medium power systems.
Advantages
GEL construction reduces electrolyte stratification and permits safer operation in multiple mounting orientations. The sealed, valve-regulated design eliminates the need for regular topping up, lowering maintenance requirements. GEL formulation increases resistance to deep discharge and improves cycle stability compared with standard flooded lead-acid types. Compact dimensions and standard T1 terminals simplify installation in backup power units, alarm systems, UPS units and portable equipment.
Suitable for
Uninterruptible power supplies (UPS) for short-term backup
Alarm and security systems
Mobility aids and electric scooters with compatible voltage
Small renewable energy storage and off-grid kits
Emergency lighting and signage
Key specifications
Nominal voltage: 12V
Rated capacity: 17Ah (at standard discharge conditions)
Electrolyte type: GEL (immobilized electrolyte)
Terminal type: T1 (4.75 mm)
Design: Sealed, valve-regulated lead-acid (VRLA)
Maintenance: Maintenance-free (no topping up)
How to use
Install the battery in a dry, well-ventilated area away from direct heat sources. Ensure polarity is correct and use compatible T1 terminal connectors tightened to manufacturer-recommended torque. For initial commissioning, charge the battery with an appropriate 12V GEL/lead-acid battery charger using the recommended charge profile for GEL batteries. Observe recommended float and cyclic charge voltages to maximize life. Avoid prolonged deep discharges; recharge promptly after use and store the battery at partial charge if not used for extended periods.
Usage recommendations
Use a charger that supports GEL/VRLA chemistry and follow the charger manufacturer’s settings for charge current and voltage. Periodically check voltage and perform a charge cycle during storage every 3–6 months to prevent permanent capacity loss. When replacing an old battery, verify enclosure space and terminal compatibility with the T1 connector to ensure safe, reliable installation.

## FAQ

### How much does the COSI CSB-1217 GEL 12V 17Ah GEL battery cost, and is it available for purchase?

The price is 45.77 € (valid at the time of publication and already includes all taxes). The item is available for order — 2 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

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