# Long WPS45-12N · UPS battery 12V 45Ah

![Long WPS45-12N · UPS battery 12V 45Ah](https://bateriasonline.es/1029-home_default/long-wps45-12n.jpg)

> Long WPS45-12N: 45 Ah UPS battery, 197.7×166×171 mm, AGM. Equivalent to Q-Battery 12LS-45 and Long WPS45-12. Price on request: ask for a free quote.

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

- **Canonical URL**: https://bateriasonline.es/en/long-wps45-12n
- **Language**: en
- **Brand**: Long
- **Reference**: BOL-LONG-WPS45-12N
- **MPN**: WPS45-12N
- **Last updated**: 2026-11-06

## Technical specifications

| Feature | Value |
|---|---|
| Brand | Long |
| Range | WPS Series |
| Application | UPS systems |
| Technology | AGM |
| Voltage | 12 V |
| Capacity | 45 Ah |
| Length | 197.7 mm |
| Width | 166 mm |
| Height | 171 mm |
| Weight | 13.5 kg |

## Quick description

The Long WPS45-12N is an UPS battery with 12 V and 45 Ah, measuring 197.7 × 166 × 171 mm.

## Description

## Where the Long WPS45-12N fits

The Long WPS45-12N 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 WPS45-12N belongs to the Long WPS Series range. [See all Long batteries](https://bateriasonline.es/en/long-batteries)

## Inside the WPS45-12N: AGM technology

The WPS45-12N 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.

## Long WPS45-12N vs WPS40-12 and WPS40-12N: which one to choose?

Torn between the WPS45-12N and another similar Long? This is what changes:

| Model | Capacity | Dimensions (mm) | Weight |
|---|---|---|---|
| Long WPS45-12N (this one) | 45 Ah | 197.7 × 166 × 171 | 13.5 kg |
| Long WPS40-12 | 40 Ah | 199 × 166 × 171 | 12.6 kg |
| Long WPS40-12N | 40 Ah | 199 × 166 × 171 | 12.6 kg |

- Long WPS40-12: 5 Ah less, the same dimensions.
- Long WPS40-12N: 5 Ah less, the same dimensions.

## Equivalents and alternatives to the Long WPS45-12N

Other AGM batteries that fit the WPS45-12N's tray with the same polarity: an AGM can only be replaced by another AGM.

| Model | Technology | Capacity | Dimensions (mm) |
|---|---|---|---|
| Q-Battery 12LS-45 | AGM | 45 Ah | 197 × 165 × 170 |
| Long WPS45-12 | AGM | 45 Ah | 197.7 × 166 × 171 |
| Long WPL45-12 | AGM | 45 Ah | 199 × 166 × 171 |
| Long WXL12150W | AGM | 45 Ah | 199 × 166 × 171 |
| Long WPL45-12N | AGM | 45 Ah | 199 × 166 × 171 |
| Long WXL12150WN | AGM | 45 Ah | 199 × 166 × 171 |

## Part numbers and codes for the Long WPS45-12N

The WPS45-12N is listed under these codes on labels, in garages and in catalogues:

| Commercial reference | WPS45-12N |
|---|---|
| Not to be confused with | Long WP45-12N (45 Ah), Long WPS40-12N (40 Ah), Long WPL45-12N (45 Ah) |

## Check this before ordering the Long WPS45-12N

- Your current battery should say about 45 Ah; a little more is also fine.
- Length, width and height of the WPS45-12N: 197.7 × 166 × 171 mm.

## Frequently asked questions about the Long WPS45-12N

### WPS45-12N or WPS40-12: which one suits me?

Compared with the WPS45-12N, the Long WPS40-12 has 5 Ah less. With 45 Ah, the WPS45-12N runs longer between charges than the WPS40-12 (40 Ah). Both measure 197.7 × 166 × 171 mm, so they fit the same tray.

### How much does the Long WPS45-12N weigh?

13.5 kg, with 45 Ah of capacity. For reference, the Long WPS40-12 (40 Ah) weighs 12.6 kg.

### Which battery is equivalent to the Long WPS45-12N?

Only other AGM batteries with its dimensions and polarity: Q-Battery 12LS-45, Long WPS45-12 and Long WPL45-12. Neither an EFB nor a conventional battery replaces the WPS45-12N.

### Which charger does the Long WPS45-12N 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 WPS45-12N

- [Other uPS batteries](https://bateriasonline.es/en/ups-batteries)
- [More Long models](https://bateriasonline.es/en/long-batteries)
- [Q-Battery 12LS-45](https://bateriasonline.es/en/q-battery-12ls-45) · 45 Ah, 197×165×170 mm
- [Long WPS45-12](https://bateriasonline.es/en/long-wps45-12) · 45 Ah, 197.7×166×171 mm

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