Exide

Exide EP450 · Boat battery 12V 50Ah 750A

Reference: BOL-EXIDE-EP450 · EAN 3661024035972

The Exide EP450 is a boat battery with 12 V, 50 Ah and 750 A cold cranking current, measuring 260 × 173 × 206 mm, with the positive terminal on the left.

Where the Exide EP450 fits

The Exide EP450 is made for marine use. With 50 Ah, the EP450 suits boats that had a battery of that capacity.

The EP450 belongs to the Exide EXIDE MARINA DUAL EP range. See all Exide batteries

What it means that the EP450 is AGM

Inside, the EP450 has glass fibre separators (AGM) that hold the electrolyte. The EP450 needs a charger with an AGM mode that does not exceed 14.7 V.

Exide EP450 vs EM1000 and EX900

Torn between the EP450 and another similar Exide? This is what changes:

ModelCapacityCold cranking (EN)Dimensions (mm)PositiveWeight
Exide EP450 (this one)50 Ah750 A260 × 173 × 206left18.6 kg
Exide EM100050 Ah800 A260 × 173 × 206left17.9 kg
Exide EX90050 Ah800 A260 × 173 × 206–17.9 kg
  • Exide EM1000: the same capacity, 50 A more cranking power, the same dimensions.
  • Exide EX900: the same capacity, 50 A more cranking power, the same dimensions.

Equivalents and alternatives to the Exide EP450

As the EP450 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.

ModelTechnologyCapacityCold cranking (EN)Dimensions (mm)
Exide EM1000AGM50 Ah800 A260 × 173 × 206
Exide EX900AGM50 Ah800 A260 × 173 × 206

Exide EP450 codes and part numbers

This is how the Exide EP450 appears on the label and in parts catalogues:

Commercial referenceEP450
EAN3661024035972
Terminal typeSAE M 3/8"- 5/16"&stud
Not to be confused withExide EB450 (45 Ah, 330 A, positive terminal on the right), Exide ES450 (40 Ah, 280 A, positive terminal on the right), Exide ER450 (95 Ah, 720 A)

Before ordering the EP450, check this

  • Check the EN amps on your battery: if it says 750 A or less, the EP450 covers your engine.
  • Capacity of the EP450: 50 Ah; the same as your current battery or slightly more is fine.
  • With the terminals facing you, the positive terminal of the EP450 is on the left.
  • The EP450 needs 260 × 173 × 206 mm of space: measure it with the hold-down clamp in place.

Frequently asked questions about the Exide EP450

Exide EP450 or EM1000?

Compared with the EP450, the Exide EM1000 has 50 A more cranking power. If your current battery says 800 A or more, choose the EM1000; if it says 750 A or less, the EP450 is enough. Both measure 260 × 173 × 206 mm, so they fit the same tray.

How much does the Exide EP450 weigh?

The EP450 weighs 18.6 kg. For reference, the Exide EM1000 (50 Ah) weighs 17.9 kg.

Which battery is equivalent to the Exide EP450?

Only other AGM batteries with its dimensions and polarity: Exide EM1000 and Exide EX900. Neither an EFB nor a conventional battery replaces the EP450.

Which side is the positive terminal on the Exide EP450?

The EP450 has the positive terminal on the left, looking at the battery from its long side with the terminals closest to you.

How do I look after the boat battery in winter?

Leave it 100% charged, disconnected or on a marine maintenance charger. A battery that spends the winter half-discharged loses capacity permanently.

Other options if you are unsure about the EP450

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