# Long WPS4-6 · UPS battery 6V 4Ah

![Long WPS4-6 · UPS battery 6V 4Ah](https://bateriasonline.es/1043-home_default/long-wps4-6.jpg)

> Long WPS4-6: 4 Ah UPS battery, 70×47×106 mm, AGM. Equivalent to Fulbat FP6-4 and Fulbat FP6-4.5. 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-wps4-6
- **Language**: en
- **Brand**: Long
- **Reference**: BOL-LONG-WPS4-6
- **MPN**: WPS4-6
- **Last updated**: 2026-11-06

## Technical specifications

| Feature | Value |
|---|---|
| Brand | Long |
| Range | WPS Series |
| Application | UPS systems |
| Technology | AGM |
| Voltage | 6 V |
| Capacity | 4 Ah |
| Length | 70 mm |
| Width | 47 mm |
| Height | 106 mm |
| Weight | 745 kg |

## Quick description

Long WPS4-6: UPS battery with 6 V and 4 Ah, measuring 70 × 47 × 106 mm.

## Description

## Who the Long WPS4-6 is for

The Long WPS4-6 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. The WPS4-6 spends most of its life on float charge, waiting for a power cut.
The WPS4-6 belongs to the Long WPS Series range. [See all Long batteries](https://bateriasonline.es/en/long-batteries)

## AGM technology in the WPS4-6

The WPS4-6 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 WPS4-6 vs WP4.5-6 and WP5-6

The real differences between the WPS4-6 and the closest Long models:

| Model | Capacity | Dimensions (mm) | Weight |
|---|---|---|---|
| Long WPS4-6 (this one) | 4 Ah | 70 × 47 × 106 | 745 kg |
| Long WP4.5-6 | 4.5 Ah | 70 × 47 × 106 | 0.82 kg |
| Long WP5-6 | 5 Ah | 70 × 47 × 106 | 0.83 kg |

- Long WP4.5-6: 0.5 Ah more, the same dimensions.
- Long WP5-6: 1 Ah more, the same dimensions.

## Equivalents and alternatives to the Long WPS4-6

As the WPS4-6 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 FP6-4 | AGM | 4 Ah | 70 × 47 × 106 |
| Fulbat FP6-4.5 | AGM | 4.5 Ah | 70 × 47 × 106 |
| Ritar RT645 | AGM | 4.5 Ah | 70 × 47 × 107 |
| Long WP4.5-6 | AGM | 4.5 Ah | 70 × 47 × 106 |
| Fulbat FP6-6 | AGM | 6 Ah | 70 × 47 × 106 |
| Long WP5-6 | AGM | 5 Ah | 70 × 47 × 106 |

## Before ordering the WPS4-6, check this

- Your current battery should say about 4 Ah; a little more is also fine.
- Measure the space: the WPS4-6 takes up 70 × 47 × 106 mm.

## Frequently asked questions about the Long WPS4-6

### Long WPS4-6 or WP4.5-6?

Compared with the WPS4-6, the Long WP4.5-6 has 0.5 Ah more. With 4.5 Ah, the WP4.5-6 runs longer between charges than the WPS4-6 (4 Ah). Both measure 70 × 47 × 106 mm, so they fit the same tray.

### How much does the Long WPS4-6 weigh?

The WPS4-6 weighs 745 kg. For reference, the Long WP4.5-6 (4.5 Ah) weighs 0.82 kg.

### Which battery is equivalent to the Long WPS4-6?

Only other AGM batteries with its dimensions and polarity: Fulbat FP6-4, Fulbat FP6-4.5 and Ritar RT645. Neither an EFB nor a conventional battery replaces the WPS4-6.

### Which charger does the Long WPS4-6 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 WPS4-6

- [More uPS batteries](https://bateriasonline.es/en/ups-batteries)
- [Full Long catalogue](https://bateriasonline.es/en/long-batteries)
- [Fulbat FP6-4](https://bateriasonline.es/en/fulbat-fp6-4) · 4 Ah, 70×47×106 mm
- [Fulbat FP6-4.5](https://bateriasonline.es/en/fulbat-fp6-4-5) · 4.5 Ah, 70×47×106 mm

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