Exide EX900 Maxxima · Marine battery 50Ah 800A AGM

Marine battery Exide EX900 Maxxima 50Ah 800A 12V

The Exide EX900 marine battery offers 12 V, 50 Ah and 800 A of cold cranking current (EN) from the Maxxima range with AGM technology, designed for motor and sailing boats, both for engine starting and onboard services. Its 260 × 173 × 206 mm make it the exact replacement for the 50 Ah battery fitted as standard to many boats.

• Resistant to humidity and salt air.
• Sealed: no spills or gases in the locker.
• Ready for starting outboard and inboard engines.
• AGM: faster recharging and better cycle resistance than a conventional battery.

What the Exide EX900 is for

With 50 Ah, the Exide EX900 covers motor and sailing boats, both for engine starting and onboard services. At the end of the season, charge it fully before winter storage. Check that it matches your current battery in dimensions, terminals and hold-down: this reference has a weight of 17.90 kg, SAE S 3/8" side Terminal terminals and B7 hold-down.

Dimensions, polarity and mounting

The Exide EX900 is made in the 260 × 173 × 206 mm format and weighs 17.90 kg. It uses a B7 hold-down and SAE S 3/8" side Terminal terminals, the system that anchors and connects it in the vehicle. Before replacing it, measure your current battery tray: if all three dimensions and the terminal positions match, the swap is direct and needs no adapters.

The Exide EX900: Maxxima range and AGM technology

Within the Exide catalogue, the Maxxima series groups the references designed for this use. The EX900 is the 50 Ah model of that family, with the same performance as its siblings in other sizes.

AGM (Absorbent Glass Mat) technology seals the electrolyte in glass microfibre. The result is a maintenance-free battery that is highly vibration-resistant and able to withstand deep discharges that would ruin a classic lead-acid battery.

Why choose Exide batteries

With more than a century of history, Exide Technologies manufactures automotive, marine, motorcycle and industrial batteries in Europe. Its presence as original equipment on assembly lines vouches for the quality of every reference. All the Exide batteries in our catalogue are genuine product, recently manufactured and covered by the manufacturer's warranty.

Manufacturer's warranty

The Exide EX900 comes with the manufacturer's official warranty against manufacturing defects. Deep discharge from winter lay-up without charging is not covered.

How to make it last longer

As a service battery, avoid routine discharges below 50% to extend its cycle life. Charge with a charger that has an AGM mode: it limits the voltage and protects the glass-fibre separators.

Shipping, delivery and returns

Orders placed before 6:00 pm with the battery in stock ship the same day. Delivery in mainland Spain and Portugal takes 24-48 working hours; for the Balearic Islands and the rest of the European Union allow 3 to 5 working days. You have 14 days to return an unused battery; in mainland Spain and Portugal collection is free. We email you the tracking number as soon as the parcel ships.