# Long WPL28-12TM · UPS battery 12V 28Ah

![Long WPL28-12TM · UPS battery 12V 28Ah](https://bateriasonline.es/1067-home_default/long-wpl28-12tm.jpg)

> Long WPL28-12TM: 28 Ah UPS battery, 166×125.5×176 mm, AGM. Equivalent to Q-Battery 12LSX-9 and Ritar RT12280S. Ask for a no-obligation quote.

**Category:** [UPS batteries](https://bateriasonline.es/en/ups-batteries) → [Long](https://bateriasonline.es/en/long-batteries)

- **Canonical URL**: https://bateriasonline.es/en/long-wpl28-12tm
- **Language**: en
- **Brand**: Long
- **Reference**: BOL-LONG-WPL28-12TM
- **MPN**: WPL28-12TM
- **Last updated**: 2026-11-06

## Technical specifications

| Feature | Value |
|---|---|
| Brand | Long |
| Range | WPL Series |
| Application | UPS systems |
| Technology | AGM |
| Voltage | 12 V |
| Capacity | 28 Ah |
| Length | 166 mm |
| Width | 125.5 mm |
| Height | 176 mm |
| Weight | 9.18 kg |

## Quick description

Long WPL28-12TM: UPS battery with 12 V and 28 Ah, measuring 166 × 125.5 × 176 mm.

## Description

## The Long WPL28-12TM at a glance

The Long WPL28-12TM replaces the original batteries in a UPS. Before ordering the WPL28-12TM, check the terminal type and terminal orientation in your UPS.
The WPL28-12TM belongs to the Long WPL Series range. [More Long batteries](https://bateriasonline.es/en/long-batteries)

## Equivalents and alternatives to the Long WPL28-12TM

Other AGM batteries that fit the WPL28-12TM's tray with the same polarity: an AGM can only be replaced by another AGM.

| Model | Technology | Capacity | Dimensions (mm) |
|---|---|---|---|
| Q-Battery 12LSX-9 | AGM | 28 Ah | 165 × 125 × 175 |
| Ritar RT12280S | AGM | 28 Ah | 165 × 126 × 174 |
| Long WPL28-12T | AGM | 28 Ah | 166 × 125.5 × 176 |
| Long WPL28-12TN | AGM | 28 Ah | 166 × 125.5 × 176 |

## Long WPL28-12TM vs WPL36-12 and WPL34-12N

The real differences between the WPL28-12TM and the closest Long models:

| Model | Capacity | Dimensions (mm) | Weight |
|---|---|---|---|
| Long WPL28-12TM (this one) | 28 Ah | 166 × 125.5 × 176 | 9.18 kg |
| Long WPL36-12 | 36 Ah | 197 × 131 × 180 | 11 kg |
| Long WPL34-12N | 34 Ah | 197 × 131 × 168 | 10.3 kg |

- Long WPL36-12: 8 Ah more, a different case (197 × 131 × 180 mm).
- Long WPL34-12N: 6 Ah more, a different case (197 × 131 × 168 mm).

## What it means that the WPL28-12TM is AGM

Inside, the WPL28-12TM has glass fibre separators (AGM) that hold the electrolyte. It is fitted in cars with advanced Start-Stop and in deep-cycle equipment.

## What to look at before buying the WPL28-12TM

- Measure the space: the WPL28-12TM takes up 166 × 125.5 × 176 mm.
- With 28 Ah, the WPL28-12TM replaces an original battery of that capacity or slightly less.

## Frequently asked questions about the Long WPL28-12TM

### WPL28-12TM or WPL36-12: which one suits me?

Compared with the WPL28-12TM, the Long WPL36-12 has 8 Ah more. With 36 Ah, the WPL36-12 runs longer between charges than the WPL28-12TM (28 Ah). Mind the space: the WPL36-12 measures 197 × 131 × 180 mm.

### How much does the Long WPL28-12TM weigh?

9.18 kg, with 28 Ah of capacity. For reference, the Long WPL36-12 (36 Ah) weighs 11 kg.

### Which battery is equivalent to the Long WPL28-12TM?

Only other AGM batteries with its dimensions and polarity: Q-Battery 12LSX-9, Ritar RT12280S and Long WPL28-12T. Neither an EFB nor a conventional battery replaces the WPL28-12TM.

## More batteries to compare with the WPL28-12TM

- [All uPS batteries](https://bateriasonline.es/en/ups-batteries)
- [Full Long catalogue](https://bateriasonline.es/en/long-batteries)
- [Q-Battery 12LSX-9](https://bateriasonline.es/en/q-battery-12lsx-9) · 28 Ah, 165×125×175 mm
- [Ritar RT12280S](https://bateriasonline.es/en/ritar-rt12280s) · 28 Ah, 165×126×174 mm

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