# Ritar HR12-28W · High-rate UPS battery 12V 7Ah

![Ritar HR12-28W · High-rate UPS battery 12V 7Ah](https://bateriasonline.es/3267-home_default/ritar-hr12-28w.jpg)

> Ritar HR12-28W: 7 Ah high-rate UPS battery, 151×65×100 mm, AGM. Equivalent to Fulbat FPH12-35W and Ritar HR12-32W.

**Category:** [High-rate UPS batteries](https://bateriasonline.es/en/high-rate-ups-batteries) → [Ritar](https://bateriasonline.es/en/ritar-batteries)

- **Canonical URL**: https://bateriasonline.es/en/ritar-hr12-28w
- **Language**: en
- **Brand**: Ritar
- **Reference**: BOL-RITAR-HR12-28W
- **MPN**: HR12-28W
- **Price**: 44,39 € (VAT incl., Spain)
- **Last updated**: 2026-11-06

## Technical specifications

| Feature | Value |
|---|---|
| Brand | Ritar |
| Range | RITAR HR |
| Application | High-rate UPS systems |
| Technology | AGM |
| Voltage | 12 V |
| Capacity | 7 Ah |
| Length | 151 mm |
| Width | 65 mm |
| Height | 100 mm |
| Weight | 2.08 kg |
| Terminal type | F1 / F2 |

## Quick description

The Ritar HR12-28W is a high-rate UPS battery with 12 V and 7 Ah, measuring 151 × 65 × 100 mm.

## Description

## Where the Ritar HR12-28W fits

The Ritar HR12-28W is a high-rate battery for UPS: optimised to deliver a lot of power for a few minutes, the typical regime of a mains outage. Its key figure is watts per cell over 15 minutes, not amp-hours.
The HR12-28W belongs to the Ritar RITAR HR range. [The full range of Ritar batteries](https://bateriasonline.es/en/ritar-batteries)

## Equivalents and alternatives to the Ritar HR12-28W

Other AGM batteries that fit the HR12-28W's tray with the same polarity: an AGM can only be replaced by another AGM.

| Model | Technology | Capacity | Dimensions (mm) |
|---|---|---|---|
| Fulbat FPH12-35W | AGM | 9 Ah | 151 × 65 × 99 |
| Ritar HR12-32W | AGM | 8 Ah | 151 × 65 × 100 |
| Ritar HR12-36W | AGM | 9 Ah | 151 × 65 × 100 |

## Ritar HR12-28W vs HR12-32W and HR12-36W

Torn between the HR12-28W and another similar Ritar? This is what changes:

| Model | Capacity | Dimensions (mm) | Weight |
|---|---|---|---|
| Ritar HR12-28W (this one) | 7 Ah | 151 × 65 × 100 | 2.08 kg |
| Ritar HR12-32W | 8 Ah | 151 × 65 × 100 | 2.2 kg |
| Ritar HR12-36W | 9 Ah | 151 × 65 × 100 | 2.45 kg |

- Ritar HR12-32W: 1 Ah more, the same dimensions.
- Ritar HR12-36W: 2 Ah more, the same dimensions.

## What it means that the HR12-28W is AGM

The HR12-28W is AGM: the electrolyte is absorbed in glass fibre mats, so it is sealed and spill-proof. Being sealed, the HR12-28W can be fitted in the boot or under a seat with no risk of spills.

## Check this before ordering the Ritar HR12-28W

- Length, width and height of the HR12-28W: 151 × 65 × 100 mm.
- With 7 Ah, the HR12-28W replaces an original battery of that capacity or slightly less.

## Part numbers and codes for the Ritar HR12-28W

Look for any of these HR12-28W codes on your current battery or in the manufacturer's catalogue:

| Commercial reference | HR12-28W |
|---|---|
| Terminal type | F1 / F2 |
| Not to be confused with | Ritar HR12-20W (5 Ah) |

## Frequently asked questions about the Ritar HR12-28W

### HR12-28W or HR12-32W: which one suits me?

Compared with the HR12-28W, the Ritar HR12-32W has 1 Ah more. With 8 Ah, the HR12-32W runs longer between charges than the HR12-28W (7 Ah). Both measure 151 × 65 × 100 mm, so they fit the same tray.

### How much does the Ritar HR12-28W weigh?

2.08 kg, with 7 Ah of capacity. For reference, the Ritar HR12-32W (8 Ah) weighs 2.2 kg.

### Which battery is equivalent to the Ritar HR12-28W?

Only other AGM batteries with its dimensions and polarity: Fulbat FPH12-35W, Ritar HR12-32W and Ritar HR12-36W. Neither an EFB nor a conventional battery replaces the HR12-28W.

## Other options if you are unsure about the HR12-28W

- [Other high-rate UPS batteries](https://bateriasonline.es/en/high-rate-ups-batteries)
- [The whole Ritar range](https://bateriasonline.es/en/ritar-batteries)
- [Ritar HR12-20BW](https://bateriasonline.es/en/ritar-hr12-20bw) · 5 Ah, 152×50×101 mm

---
*bateriasonline.es — Batteries and accessories · 2026-11-10*