# Long MSK300 · Telecom battery 2V 300Ah

![Long MSK300 · Telecom battery 2V 300Ah](https://bateriasonline.es/995-home_default/long-msk300.jpg)

> Long MSK300: 300 Ah telecom battery, 170×150×342.5 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-msk300
- **Language**: en
- **Brand**: Long
- **Reference**: BOL-LONG-MSK300
- **MPN**: MSK300
- **Last updated**: 2026-11-06

## Technical specifications

| Feature | Value |
|---|---|
| Brand | Long |
| Range | MSK Series |
| Application | Telecom systems |
| Technology | AGM |
| Voltage | 2 V |
| Capacity | 300 Ah |
| Length | 170 mm |
| Width | 150 mm |
| Height | 342.5 mm |
| Weight | 21.2 kg |

## Quick description

Long MSK300: telecom battery with 2 V and 300 Ah, measuring 170 × 150 × 342.5 mm.

## Description

## Where the Long MSK300 fits

The Long MSK300 is made for base stations, exchanges and communications cabinets. Its elongated format allows tray mounting with front connection.
The MSK300 belongs to the Long MSK Series range. [The full range of Long batteries](https://bateriasonline.es/en/long-batteries)

## Equivalents and alternatives to the Long MSK300

We have no other battery with exactly the dimensions and polarity of the MSK300. Browse the rest of our [front-terminal telecom batteries](https://bateriasonline.es/en/front-terminal-telecom-batteries) to compare close options.

## Long MSK300 vs MSK200 and MSK400: differences

What sets the MSK300 apart from its neighbours in the Long range:

| Model | Capacity | Dimensions (mm) | Weight |
|---|---|---|---|
| Long MSK300 (this one) | 300 Ah | 170 × 150 × 342.5 | 21.2 kg |
| Long MSK200 | 200 Ah | 170 × 106 × 342.5 | 14 kg |
| Long MSK400 | 400 Ah | 197 × 170 × 342.5 | 25.5 kg |

- Long MSK200: 100 Ah less, a different case (170 × 106 × 342.5 mm).
- Long MSK400: 100 Ah more, a different case (197 × 170 × 342.5 mm).

## Inside the MSK300: AGM technology

Inside, the MSK300 has glass fibre separators (AGM) that hold the electrolyte. The MSK300 needs a charger with an AGM mode that does not exceed 14.7 V.

## Check this before ordering the Long MSK300

- The MSK300 needs 170 × 150 × 342.5 mm of space: measure it with the hold-down clamp in place.
- With 300 Ah, the MSK300 replaces an original battery of that capacity or slightly less.

## Part numbers and codes for the Long MSK300

This is how the Long MSK300 appears on the label and in parts catalogues:

| Commercial reference | MSK300 |
|---|---|
| Not to be confused with | Long MSK200 (200 Ah), Long MSK400 (400 Ah), Long MSK500 (500 Ah) |

## Frequently asked questions about the Long MSK300

### MSK300 or MSK200: which one suits me?

Compared with the MSK300, the Long MSK200 has 100 Ah less. With 300 Ah, the MSK300 runs longer between charges than the MSK200 (200 Ah). Mind the space: the MSK200 measures 170 × 106 × 342.5 mm.

### How much does the Long MSK300 weigh?

21.2 kg, with 300 Ah of capacity. For reference, the Long MSK200 (200 Ah) weighs 14 kg.

### Which charger does the Long MSK300 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.

## Keep comparing: alternatives to the MSK300

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

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