# Long WPS4-12 · UPS battery 12V 4Ah

![Long WPS4-12 · UPS battery 12V 4Ah](https://bateriasonline.es/1047-home_default/long-wps4-12.jpg)

> Long WPS4-12: 4 Ah UPS battery, 90×70×107 mm, AGM. Equivalent to Fulbat FP12-4.5 and Ritar RT1245. 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-wps4-12
- **Language**: en
- **Brand**: Long
- **Reference**: BOL-LONG-WPS4-12
- **MPN**: WPS4-12
- **Last updated**: 2026-11-06

## Technical specifications

| Feature | Value |
|---|---|
| Brand | Long |
| Range | WPS Series |
| Application | UPS systems |
| Technology | AGM |
| Voltage | 12 V |
| Capacity | 4 Ah |
| Length | 90 mm |
| Width | 70 mm |
| Height | 107 mm |
| Weight | 1.5 kg |

## Quick description

Long WPS4-12: UPS battery with 12 V and 4 Ah, measuring 90 × 70 × 107 mm.

## Description

## Who the Long WPS4-12 is for

The Long WPS4-12 replaces the original batteries in a UPS. Before ordering the WPS4-12, check the terminal type and terminal orientation in your UPS.
The WPS4-12 belongs to the Long WPS Series range. [More Long batteries](https://bateriasonline.es/en/long-batteries)

## Equivalents and alternatives to the Long WPS4-12

Other AGM batteries that fit the WPS4-12's tray with the same polarity: an AGM can only be replaced by another AGM.

| Model | Technology | Capacity | Dimensions (mm) |
|---|---|---|---|
| Fulbat FP12-4.5 | AGM | 4.5 Ah | 90 × 70 × 107 |
| Ritar RT1245 | AGM | 4.5 Ah | 90 × 70 × 107 |
| Q-Battery 12LS-4.5 | AGM | 4.5 Ah | 90 × 70 × 107 |
| Ritar RT1250 | AGM | 5 Ah | 90 × 70 × 107 |
| Fulbat FP12-5.4 | AGM | 5.4 Ah | 90 × 70 × 107 |
| Long WP4.5-12 | AGM | 4.5 Ah | 90 × 70 × 107 |

## Long WPS4-12 vs WP4.5-12 and WPS5-12

What sets the WPS4-12 apart from its neighbours in the Long range:

| Model | Capacity | Dimensions (mm) | Weight |
|---|---|---|---|
| Long WPS4-12 (this one) | 4 Ah | 90 × 70 × 107 | 1.5 kg |
| Long WP4.5-12 | 4.5 Ah | 90 × 70 × 107 | 1.62 kg |
| Long WPS5-12 | 5 Ah | 90 × 70 × 107 | 1.62 kg |

- Long WP4.5-12: 0.5 Ah more, the same dimensions.
- Long WPS5-12: 1 Ah more, the same dimensions.

## AGM technology in the WPS4-12

Inside, the WPS4-12 has glass fibre separators (AGM) that hold the electrolyte. It is fitted in cars with advanced Start-Stop and in deep-cycle equipment.

## Before ordering the WPS4-12, check this

- Length, width and height of the WPS4-12: 90 × 70 × 107 mm.
- Your current battery should say about 4 Ah; a little more is also fine.

## Part numbers and codes for the Long WPS4-12

Shops, garages and catalogues identify the WPS4-12 with these codes:

| Commercial reference | WPS4-12 |
|---|---|
| Not to be confused with | Long WP24-12 (24 Ah), Long WPS40-12 (40 Ah), Long WPS45-12 (45 Ah) |

## Frequently asked questions about the Long WPS4-12

### WPS4-12 or WP4.5-12: which one suits me?

Compared with the WPS4-12, the Long WP4.5-12 has 0.5 Ah more. With 4.5 Ah, the WP4.5-12 runs longer between charges than the WPS4-12 (4 Ah). Both measure 90 × 70 × 107 mm, so they fit the same tray.

### How much does the Long WPS4-12 weigh?

1.5 kg, with 4 Ah of capacity. For reference, the Long WP4.5-12 (4.5 Ah) weighs 1.62 kg.

### Which battery is equivalent to the Long WPS4-12?

Only other AGM batteries with its dimensions and polarity: Fulbat FP12-4.5, Ritar RT1245 and Q-Battery 12LS-4.5. Neither an EFB nor a conventional battery replaces the WPS4-12.

### Which charger does the Long WPS4-12 need?

A charger with an AGM mode that limits voltage to about 14.4-14.7 V. Never an old unregulated charger: overcharging dries out an AGM beyond repair.

## More batteries to compare with the WPS4-12

- [All uPS batteries](https://bateriasonline.es/en/ups-batteries)
- [The whole Long range](https://bateriasonline.es/en/long-batteries)
- [Fulbat FP12-4.5](https://bateriasonline.es/en/fulbat-fp12-4-5) · 4.5 Ah, 90×70×107 mm
- [Ritar RT1245](https://bateriasonline.es/en/ritar-rt1245) · 4.5 Ah, 90×70×107 mm

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