Long MSK400 · Telecom battery 2V 400Ah AGM

Stationary battery Long MSK400 MSK Series 400Ah 2V

The Long MSK400 with AGM technology is a 400 Ah, 2 V backup battery for UPS, alarms, telecoms and emergency lighting. It replaces the original battery without adaptation in UPS, alarm and emergency systems with a 197 × 170 × 342 mm format: same 400 Ah capacity.

• AGM technology: absorbed electrolyte, no spills, can be mounted at an angle.
• Long float life under permanent charge.
• Sealed and gas-free: suitable for cabinets and offices.
• Maintenance-free for its whole service life.

What the Long MSK400 is for

Designed for UPS, alarms, telecoms and emergency lighting, the Long MSK400 is sealed, gas-free and suitable for technical cabinets and offices. Check that it matches your current battery in dimensions, terminals and hold-down: this reference has a weight of 25.50 kg.

Will it fit your current battery tray?

It has external dimensions of 197 × 170 × 342 mm and weighs 25.50 kg. For a direct replacement, the current battery tray must accept these dimensions and the same terminal layout; otherwise adapters will be needed or the hold-down will change.

Long: the maker behind the MSK400

Long batteries combine large-scale production with ISO quality standards and a batch-to-batch consistency that has made them the de-facto standard in backup systems and electric mobility. At baterias.com we work directly with the manufacturer or its official distributor: real stock, brand-new product and official warranty.

The Long MSK400: MSK Series range and AGM technology

The MSK Series is the Long range the MSK400 belongs to: it shares the same construction and quality criteria with the rest of the series, and varies in capacity and format to suit each vehicle.

In an AGM battery the electrolyte is absorbed in glass-fibre separators: there is no free liquid, it cannot spill and it can be mounted at an angle. That construction lowers internal resistance, speeds up recharging and multiplies cycle life compared with a conventional battery.

Care and maintenance

Check the float voltage of the UPS or charger: a voltage that is too high shortens the life of a sealed battery. Replace all the batteries in the set at once and avoid environments continuously above 25 °C.

Manufacturer's warranty

The Long MSK400 comes with the manufacturer's official warranty against manufacturing defects. If it fails through a defect within the warranty period, we replace it at no cost to you.

Shipping, delivery and returns

Same-day dispatch from our warehouse for in-stock orders placed before 6:00 pm: 24-48 working hours in mainland Spain and Portugal, 3 to 5 days in the islands and the rest of Europe. Returns are accepted for 14 days if the battery has not been used (free collection on the Iberian mainland). You will receive tracking by email.