# YUASA SWL+850 VRLA Battery 12V 28.8Ah

**URL:** https://aio.lv/en/product--panasonic-15009--12530622
**Data updated:** 2026-06-22 11:35 (EEST)
**Category:** UPS Batteries
**Manufacturer:** Panasonic
**Manufacturer code:** 15009
**EAN:** 8595611306075
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 125.49 €
**Prices and availability valid until:** 2026-07-23 23:59
**Price without VAT (21%):** 103.71 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--panasonic-15009--12530622

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 09.07.2026 | free |
| Pickup points | 14.07.2026 | 1.89 EUR |
| Courier delivery to door | 14.07.2026 | 4.99 EUR |

## Summary description

The YUASA SWL+850 is a high-performance VRLA battery designed for reliable power backup in UPS systems and telecommunications. With a 12V voltage and 28.8Ah capacity, this lead-acid battery features an extended service life of 15 years or more. It is engineered for high-rate discharge applications, providing consistent energy storage and long-term durability for critical infrastructure and professional equipment.

## Long description

The YUASA SWL+850 VRLA battery is a high-performance, maintenance-free lead-acid power source designed for critical backup applications. Engineered by GS Yuasa, this battery utilizes advanced AGM technology and HT Element X Alloy to provide exceptional reliability and a long service life of over 15 years. As an upgraded successor to the standard SWL series, it offers full compatibility and enhanced durability, making it an ideal choice for professional-grade energy storage in demanding environments.
Advantages
The SWL+ series stands out due to its extended design life, classified under the EUROBAT 12+ category, which ensures a superior return on investment for long-term infrastructure projects. The integration of hybrid pure lead technology and the exclusive HT Element X Alloy significantly reduces grid corrosion and water loss, effectively slowing down structural deformation. This robust construction allows the battery to maintain stable performance even under severe operating conditions, while the hermetically sealed design provides the flexibility to operate the unit in various positions without the need for maintenance.
Suitable for
Uninterruptible power supplies (UPS) for servers and workstations
Telecommunications and data center infrastructure
Medical equipment and emergency lighting systems
Industrial control systems and security electronics
Professional backup power for critical electronic hardware
This battery is specifically optimized for high-rate discharge applications. It may not be the most cost-effective solution for simple, low-drain consumer electronics or applications requiring frequent, deep-cycle usage where a dedicated deep-cycle battery would be more appropriate.
Key specifications
Voltage: 12V
Capacity: 28.8Ah
Technology: AGM (VRLA)
Connection: M5 thread and screw
Dimensions: 125mm x 166mm x 175mm
Weight: 10.1kg
Operating temperature range: -20°C to +50°C
Self-discharge rate: 3% per month at 20°C
How to use
The battery is designed for straightforward installation in compatible UPS systems and industrial cabinets. Ensure the connection points are clean and secure using the provided M5 screw terminals. While the battery can be operated in any position, it is recommended to avoid permanent upside-down installation to ensure optimal valve regulation. Once installed, the battery is maintenance-free and does not require electrolyte refilling or specific handling beyond standard safety precautions for lead-acid products.
What to consider before purchase
Verify the physical dimensions and terminal type match your existing equipment requirements.
Ensure the 12V/28.8Ah capacity meets the power demands of your specific UPS system.
Confirm the operating environment temperature remains within the recommended range for maximum lifespan.
Check that your charging equipment is compatible with AGM VRLA battery profiles.
Usage recommendations: To maximize the 15-year service life, store and operate the battery in a temperature-controlled environment near 20°C. Avoid deep discharge cycles whenever possible and ensure the charging system is properly calibrated to prevent overcharging or undercharging.

## FAQ

### How much does the YUASA SWL+850 VRLA Battery 12V 28.8Ah cost, and is it available for purchase?

The price is 125.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 4 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 09.07.2026 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, Installment. All transactions are 100% secure and encrypted.

### Can YUASA SWL+850 VRLA Battery 12V 28.8Ah be purchased with a lease?

Yes, the purchase is available both on credit and with an interest-free installment plan. Learn more about installments and credit options: https://aio.lv/en/payment#b3

### 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 Panasonic 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 Panasonic 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/12530622/68889825_large.webp