# Long WP2.9-12TR · UPS battery 12V 2.9Ah

![Long WP2.9-12TR · UPS battery 12V 2.9Ah](https://bateriasonline.es/764-home_default/long-wp2-9-12tr.jpg)

> Long WP2.9-12TR: 2.9 Ah UPS battery, 79×56×107 mm, AGM. Equivalent to Fulbat FP12-2.9 and Long WP2.9-12T. 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-wp2-9-12tr
- **Language**: en
- **Brand**: Long
- **Reference**: BOL-LONG-WP2.9-12TR
- **MPN**: WP2.9-12TR
- **Last updated**: 2026-11-06

## Technical specifications

| Feature | Value |
|---|---|
| Brand | Long |
| Range | WP Series |
| Application | UPS systems |
| Technology | AGM |
| Voltage | 12 V |
| Capacity | 2.9 Ah |
| Length | 79 mm |
| Width | 56 mm |
| Height | 107 mm |
| Weight | 1.19 kg |

## Quick description

The Long WP2.9-12TR is an UPS battery with 12 V and 2.9 Ah, measuring 79 × 56 × 107 mm.

## Description

## Where the Long WP2.9-12TR fits

The Long WP2.9-12TR is a VRLA AGM battery for UPS and uninterruptible power systems: it stays charged for years waiting for an outage and delivers the energy instantly when it comes. Check dimensions, terminal type (F1 or F2) and capacity so it fits the unit.
The WP2.9-12TR belongs to the Long WP Series range. [The full range of Long batteries](https://bateriasonline.es/en/long-batteries)

## Equivalents and alternatives to the Long WP2.9-12TR

Other AGM batteries that fit the WP2.9-12TR's tray with the same polarity: an AGM can only be replaced by another AGM.

| Model | Technology | Capacity | Dimensions (mm) |
|---|---|---|---|
| Fulbat FP12-2.9 | AGM | 2.9 Ah | 79 × 56 × 105 |
| Long WP2.9-12T | AGM | 2.9 Ah | 79 × 56 × 107 |

## Long WP2.9-12TR vs WP4A-BS and WP4B-5

How the WP2.9-12TR compares with Long batteries of similar size and capacity:

| Model | Capacity | Dimensions (mm) | Weight |
|---|---|---|---|
| Long WP2.9-12TR (this one) | 2.9 Ah | 79 × 56 × 107 | 1.19 kg |
| Long WP4A-BS | 2.3 Ah | 113 × 48 × 85 | 1.21 kg |
| Long WP4B-5 | 2.3 Ah | 113 × 38 × 85.5 | 1.12 kg |

- Long WP4A-BS: 0.60 Ah less, a different case (113 × 48 × 85 mm).
- Long WP4B-5: 0.60 Ah less, a different case (113 × 38 × 85.5 mm).

## What it means that the WP2.9-12TR is AGM

The WP2.9-12TR is AGM: the electrolyte is absorbed in glass fibre mats, so it is sealed and spill-proof. It withstands many more cycles than a conventional lead battery, at the cost of being more sensitive to overcharging.

## Before ordering the WP2.9-12TR, check this

- Length, width and height of the WP2.9-12TR: 79 × 56 × 107 mm.
- With 2.9 Ah, the WP2.9-12TR replaces an original battery of that capacity or slightly less.

## Frequently asked questions about the Long WP2.9-12TR

### WP2.9-12TR or WP4A-BS: which one suits me?

Compared with the WP2.9-12TR, the Long WP4A-BS has 0.60 Ah less. With 2.9 Ah, the WP2.9-12TR runs longer between charges than the WP4A-BS (2.3 Ah). Mind the space: the WP4A-BS measures 113 × 48 × 85 mm.

### How much does the Long WP2.9-12TR weigh?

1.19 kg, with 2.9 Ah of capacity. For reference, the Long WP4A-BS (2.3 Ah) weighs 1.21 kg.

### Which battery is equivalent to the Long WP2.9-12TR?

Only other AGM batteries with its dimensions and polarity: Fulbat FP12-2.9 and Long WP2.9-12T. Neither an EFB nor a conventional battery replaces the WP2.9-12TR.

## More batteries to compare with the WP2.9-12TR

- [Other uPS batteries](https://bateriasonline.es/en/ups-batteries)
- [The whole Long range](https://bateriasonline.es/en/long-batteries)
- [Fulbat FP12-2.9](https://bateriasonline.es/en/fulbat-fp12-2-9) · 2.9 Ah, 79×56×105 mm
- [Long WP2.9-12T](https://bateriasonline.es/en/long-wp2-9-12t) · 2.9 Ah, 79×56×107 mm

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