# Long MSK500 · Telecom battery 2V 500Ah

![Long MSK500 · Telecom battery 2V 500Ah](https://bateriasonline.es/1003-home_default/long-msk500.jpg)

> Long MSK500: 500 Ah telecom battery, 241×172×340 mm, AGM. Ask for a no-obligation quote.

**Category:** [Front-terminal telecom batteries](https://bateriasonline.es/en/front-terminal-telecom-batteries) → [Long](https://bateriasonline.es/en/long-batteries)

- **Canonical URL**: https://bateriasonline.es/en/long-msk500
- **Language**: en
- **Brand**: Long
- **Reference**: BOL-LONG-MSK500
- **MPN**: MSK500
- **Last updated**: 2026-11-06

## Technical specifications

| Feature | Value |
|---|---|
| Brand | Long |
| Range | MSK Series |
| Application | Telecom systems |
| Technology | AGM |
| Voltage | 2 V |
| Capacity | 500 Ah |
| Length | 241 mm |
| Width | 172 mm |
| Height | 340 mm |
| Weight | 33.5 kg |

## Quick description

The Long MSK500 is a telecom battery with 2 V and 500 Ah, measuring 241 × 172 × 340 mm.

## Description

## Where the Long MSK500 fits

The Long MSK500 is a front-terminal battery for telecommunications: a narrow format for 19 and 23 inch racks, with the terminals accessible from the front. Its elongated format allows tray mounting with front connection.
The MSK500 belongs to the Long MSK Series range. [More Long batteries](https://bateriasonline.es/en/long-batteries)

## Equivalents and alternatives to the Long MSK500

We have no other battery with exactly the dimensions and polarity of the MSK500. Browse the rest of our [front-terminal telecom batteries](https://bateriasonline.es/en/front-terminal-telecom-batteries) to compare close options.

## Long MSK500 vs MSK600 and MSK440: differences

Torn between the MSK500 and another similar Long? This is what changes:

| Model | Capacity | Dimensions (mm) | Weight |
|---|---|---|---|
| Long MSK500 (this one) | 500 Ah | 241 × 172 × 340 | 33.5 kg |
| Long MSK600 | 600 Ah | 241 × 172 × 340 | 35.7 kg |
| Long MSK440 | 440 Ah | 197 × 170 × 342.5 | 29.7 kg |

- Long MSK600: 100 Ah more, the same dimensions.
- Long MSK440: 60 Ah less, a different case (197 × 170 × 342.5 mm).

## Inside the MSK500: AGM technology

The MSK500 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.

## What to look at before buying the MSK500

- The MSK500 needs 241 × 172 × 340 mm of space: measure it with the hold-down clamp in place.
- Capacity of the MSK500: 500 Ah; the same as your current battery or slightly more is fine.

## Part numbers and codes for the Long MSK500

The MSK500 is listed under these codes on labels, in garages and in catalogues:

| Commercial reference | MSK500 |
|---|---|
| Not to be confused with | Long MSK200 (200 Ah), Long MSK300 (300 Ah), Long MSK400 (400 Ah) |

## Frequently asked questions about the Long MSK500

### MSK500 or MSK600: which one suits me?

Compared with the MSK500, the Long MSK600 has 100 Ah more. With 600 Ah, the MSK600 runs longer between charges than the MSK500 (500 Ah). Both measure 241 × 172 × 340 mm, so they fit the same tray.

### How much does the Long MSK500 weigh?

33.5 kg, with 500 Ah of capacity. For reference, the Long MSK600 (600 Ah) weighs 35.7 kg.

### Which charger does the Long MSK500 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.

## Other options if you are unsure about the MSK500

- [All front-terminal telecom batteries](https://bateriasonline.es/en/front-terminal-telecom-batteries)
- [More Long models](https://bateriasonline.es/en/long-batteries)

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