# Sealed lead‑acid battery EATON 12V 5Ah model BAT-CSB-HR1221WF2 for UPS and backup power

**URL:** https://aio.lv/en/product--eaton-bat-csb-hr1221wf2--10490421
**Data updated:** 2026-02-12 21:57 (EET)
**Category:** UPS Batteries
**Manufacturer:** EATON
**Manufacturer code:** BAT-CSB-HR1221WF2
**EAN:** 9008790228155
**Warranty:** 2 Years
**Availability:** Out of stock

## Summary description

EATON 12V 5Ah sealed lead‑acid battery (BAT-CSB-HR1221WF2) designed for UPS systems and small backup power applications. Provides 12 volts nominal voltage and 5 ampere‑hours capacity in a maintenance‑free, valve‑regulated design. Suitable for emergency lighting, telecom equipment, alarm systems and compact UPS units where reliable short‑term backup is needed.

## Long description

EATON 12V 5Ah sealed lead‑acid battery model BAT-CSB-HR1221WF2 is a compact, valve‑regulated rechargeable battery designed for use in UPS systems and small backup power applications. It provides a nominal voltage of 12 volts and a rated capacity of 5 ampere‑hours in a maintenance‑free construction. The sealed design prevents leakage and allows installation in a range of orientations, making it suitable for emergency lighting, telecom equipment, alarm systems and small uninterruptible power supplies that require dependable short‑term backup.
Advantages
The battery offers a sealed, valve‑regulated design that reduces maintenance and the need for regular electrolyte checks. Its compact size and 5Ah capacity deliver a balance between energy density and physical footprint for confined installation spaces. The construction provides stable voltage output under typical discharge conditions and is compatible with common UPS charging regimes. Its sealed nature minimizes gas release and permits indoor installation without special ventilation.
Подходит для
 Резервное питание небольших ИБП
 Аварийное освещение
 Телекоммуникационное оборудование
 Системы охранной и сигнализации
Key specifications
 Nominal voltage: 12 V
 Capacity: 5 Ah (ampere‑hours)
 Technology: Sealed lead‑acid, valve‑regulated (VRLA)
 Maintenance: Maintenance‑free, no need to add electrolyte
 Orientation: Multi‑position installation (subject to manufacturer installation guidance)
 Typical use: Short‑term backup and cyclic/standby applications
How to use
Install the battery in a compatible UPS or backup enclosure following the equipment manufacturer’s instructions. Ensure correct polarity when connecting terminals and secure the battery to prevent movement. Use a charger or UPS charging circuit designed for sealed lead‑acid VRLA batteries and follow recommended float and cyclic charge settings. Do not overcharge or deep‑discharge the battery beyond recommended limits to preserve lifespan. Observe ambient temperature ranges specified by the UPS or battery manufacturer for optimal performance.
Usage recommendations
Store and operate the battery in a dry, cool environment. Periodically check the host equipment’s battery status indicators and perform charging cycles as recommended to avoid capacity loss from prolonged storage in a discharged state. Replace batteries in matched sets when used in series and recycle used batteries according to local regulations.

## 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 EATON 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 EATON 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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