# Buffered Switching Power Supply PULSAR HPSB-12V20A-E 13.8V output 15A charging, 65Ah battery support

**URL:** https://aio.lv/en/product--pulsar-hpsb-12v20a-e--11988064
**Data updated:** 2026-03-11 18:20 (EET)
**Category:** Power Supplies (PSU)
**Manufacturer:** PULSAR
**Manufacturer code:** HPSB-12V20A-E
**EAN:** 5902135319482
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 174.99 €
**Prices and availability valid until:** 2026-07-27 23:59
**Price without VAT (21%):** 144.62 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--pulsar-hpsb-12v20a-e--11988064

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 17.07.2026 | free |
| Pickup points | 22.07.2026 | 1.89 EUR |
| Courier delivery to door | 22.07.2026 | 4.99 EUR |

## Summary description

PULSAR HPSB-12V20A-E is a buffered switching power supply providing a regulated 13.8V output with up to 15A charging current and support for a 65Ah backup battery. Designed for continuous DC power and battery buffering in security, access control, CCTV and telecom installations, it features switching topology for efficiency and stable voltage for reliable device operation.

## Long description

PULSAR HPSB-12V20A-E is a buffered switching power supply that delivers a regulated 13.8V DC output with an integrated charging circuit capable of up to 15A charging current. Intended for continuous operation, the unit provides stable DC power and battery buffering for connected equipment. The design supports connection of a single 65Ah lead-acid backup battery to maintain power during mains interruptions. Switching topology ensures high efficiency and reduced heat generation compared with linear supplies.
Advantages
The device offers accurate voltage regulation at 13.8V to ensure reliable operation of CCTV cameras, access control panels and telecom devices. An internal charging stage manages battery charging up to 15A, including protections against overcharge, which prolongs battery life. Compact switching design delivers efficiency and lower energy loss, while integrated monitoring points and status indicators simplify setup and diagnostics.
Suitable for
 Security and alarm systems requiring buffered DC power
 CCTV camera installations and video recorders
 Access control panels and gate automation
 Small telecom equipment and network devices
 Applications needing a 13.8V regulated supply with battery backup
Key specifications
 Output voltage: regulated 13.8V DC
 Continuous output current capability: up to 20A total supply capacity
 Battery charging current: up to 15A (built-in charging circuit)
 Supported backup battery capacity: up to 65Ah (lead-acid)
 Topology: switching power supply for improved efficiency
 Intended use: continuous DC supply with battery buffering for security and telecom devices
How to use
Install the unit in a ventilated location following local electrical regulations. Connect the mains supply to the designated input terminals, then connect the DC outputs to the system loads ensuring correct polarity. Attach a compatible 65Ah lead-acid backup battery to the battery terminals, observing polarity and using appropriate cable cross-section. Verify indicator LEDs or monitoring terminals to confirm normal charging and output voltage before leaving the system in service.
Usage recommendations
 Use the power supply within its rated ambient temperature and avoid obstructing ventilation openings. Select battery cabling of appropriate gauge to minimize voltage drop during high charging or discharge currents. Periodically check battery condition and terminal connections; replace batteries that show reduced capacity to maintain reliable backup performance.

## FAQ

### How much does the PULSAR HPSB-12V20A-E buffered switching power supply cost, and is it available for purchase?

The price is 174.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 999 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 17.07.2026 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 PULSAR HPSB-12V20A-E buffered switching power supply 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 PULSAR 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 PULSAR 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/11988064/67443520_large.webp