# Long WPL50-12 · UPS battery 12V 50Ah

![Long WPL50-12 · UPS battery 12V 50Ah](https://bateriasonline.es/1091-home_default/long-wpl50-12.jpg)

> Long WPL50-12: 50 Ah UPS battery, 199×166×171 mm, AGM. Equivalent to Fulbat FP12-50 and Long WPL50-12N. 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-wpl50-12
- **Language**: en
- **Brand**: Long
- **Reference**: BOL-LONG-WPL50-12
- **MPN**: WPL50-12
- **Last updated**: 2026-11-06

## Technical specifications

| Feature | Value |
|---|---|
| Brand | Long |
| Range | WPL Series |
| Application | UPS systems |
| Technology | AGM |
| Voltage | 12 V |
| Capacity | 50 Ah |
| Length | 199 mm |
| Width | 166 mm |
| Height | 171 mm |
| Weight | 14.8 kg |

## Quick description

The Long WPL50-12 is an UPS battery with 12 V and 50 Ah, measuring 199 × 166 × 171 mm.

## Description

## Who the Long WPL50-12 is for

The Long WPL50-12 replaces the original batteries in a UPS. Before ordering the WPL50-12, check the terminal type and terminal orientation in your UPS.
The WPL50-12 belongs to the Long WPL Series range. [The full range of Long batteries](https://bateriasonline.es/en/long-batteries)

## Equivalents and alternatives to the Long WPL50-12

As the WPL50-12 is an AGM battery, we only list other AGM batteries with its dimensions and polarity: neither an EFB nor a conventional battery can replace it.

| Model | Technology | Capacity | Dimensions (mm) |
|---|---|---|---|
| Fulbat FP12-50 | AGM | 50 Ah | 197 × 165 × 170 |
| Long WPL50-12N | AGM | 50 Ah | 199 × 166 × 171 |

## Long WPL50-12 vs WPL45-12 and WPL45-12N: differences

Torn between the WPL50-12 and another similar Long? This is what changes:

| Model | Capacity | Dimensions (mm) | Weight |
|---|---|---|---|
| Long WPL50-12 (this one) | 50 Ah | 199 × 166 × 171 | 14.8 kg |
| Long WPL45-12 | 45 Ah | 199 × 166 × 171 | 14.6 kg |
| Long WPL45-12N | 45 Ah | 199 × 166 × 171 | 14.6 kg |

- Long WPL45-12: 5 Ah less, the same dimensions.
- Long WPL45-12N: 5 Ah less, the same dimensions.

## What it means that the WPL50-12 is AGM

Inside, the WPL50-12 has glass fibre separators (AGM) that hold the electrolyte. It is fitted in cars with advanced Start-Stop and in deep-cycle equipment.

## Check this before ordering the Long WPL50-12

- The WPL50-12 needs 199 × 166 × 171 mm of space: measure it with the hold-down clamp in place.
- Your current battery should say about 50 Ah; a little more is also fine.

## Long WPL50-12 codes and part numbers

Shops, garages and catalogues identify the WPL50-12 with these codes:

| Commercial reference | WPL50-12 |
|---|---|
| Not to be confused with | Long WPL5-12 (5 Ah), Long WPL40-12 (40 Ah), Long WPL55-12 (55 Ah) |

## Frequently asked questions about the Long WPL50-12

### Long WPL50-12 or WPL45-12?

Compared with the WPL50-12, the Long WPL45-12 has 5 Ah less. With 50 Ah, the WPL50-12 runs longer between charges than the WPL45-12 (45 Ah). Both measure 199 × 166 × 171 mm, so they fit the same tray.

### How much does the Long WPL50-12 weigh?

The WPL50-12 weighs 14.8 kg. For reference, the Long WPL45-12 (45 Ah) weighs 14.6 kg.

### Which battery is equivalent to the Long WPL50-12?

Only other AGM batteries with its dimensions and polarity: Fulbat FP12-50 and Long WPL50-12N. Neither an EFB nor a conventional battery replaces the WPL50-12.

### Which charger does the Long WPL50-12 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 WPL50-12

- [More uPS batteries](https://bateriasonline.es/en/ups-batteries)
- [Full Long catalogue](https://bateriasonline.es/en/long-batteries)
- [Fulbat FP12-50](https://bateriasonline.es/en/fulbat-fp12-50) · 50 Ah, 197×165×170 mm
- [Long WPL50-12N](https://bateriasonline.es/en/long-wpl50-12n) · 50 Ah, 199×166×171 mm

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