# Jumper Starter Rasmus Marine

> Rasmus Marine boat battery jump starter: lithium, 1,500-2,000 A peak for inboard diesel, outboard, power-boat. 24h delivery, 14-day returns.

**Category:** [Start](https://baterias.com/gb/beginning) → [Vehicle Jump Starters](https://baterias.com/gb/vehicle-jump-starters)

- **Canonical URL**: https://baterias.com/gb/jumper-starter-rasmus-marine
- **Language**: en-GB

## Description

**Rasmus Marine jump-starters**: a **boat battery jump starter** built specifically for the marine environment. Compact, rugged, internal lithium and professional clamps sized for large marine batteries (inboard diesel, powerful outboard, fast power-boat).
Lets you crank a boat with a flat main battery — a common situation after a long lay-up or excessive overnight house-load drain — without towing or a marine-service callout.

## Why a marine-specific jump starter

A generic car jump pack often falls short of cranking a boat engine: inboard diesels (Volvo Penta, Yanmar, Mercury) and powerful outboards demand real cold-crank peaks of 1,000-2,000 A. The Rasmus Marine **boat battery jump starter** is sized for this load, with insulated professional clamps for salt-air environments and a case ready for onboard use.

### Which Rasmus Marine model to choose

- **Rasmus Marine 12V Pro** — 1,500 A peak, 20,000 mAh: mid inboard diesel and outboard.
- **Rasmus Marine 12V HD** — 2,000 A peak, 30,000 mAh: large diesel and fast power-boat.

### How to use it safely

- Check the internal charge before leaving the dock; connect the positive clamp to the battery positive first, then the negative clamp to the battery negative or to chassis, away from the positive terminal.
- Crank the engine for a maximum of 5-8 seconds, no more than 3 back-to-back attempts without a rest, and disconnect the negative clamp first.

### Compatibility and how to choose

If you also need to check your boat main battery, use our [comparison tool](/gb/comparator) to see capacity (Ah) and cranking current (A/EN) of compatible marine models.

## Frequently asked questions about the Rasmus Marine jump starter

### **What amperage do I need for my engine?**

For a mid inboard diesel or an outboard, the **12V Pro (1,500 A)** is enough; for a large diesel or fast power-boat, the **12V HD (2,000 A)** gives more headroom.

### **Does it work with the boat AGM, GEL or lithium battery?**

The jump starter only supplies external current through the clamps, so it works the same with lead-acid, AGM, GEL or lithium boat batteries; the key point is respecting polarity when connecting.

### **What is the difference between the Pro and the HD?**

The Pro covers mid inboard diesel and outboard; the HD has more capacity for large diesel and fast power-boats.

### **Is it resistant to the marine environment?**

Yes, its professional clamps are insulated for salt-air environments and the case is built for regular onboard use.

Catalogue curated by our technical team. **11,063 Trustpilot reviews · 4.5/5**. 24h mainland delivery, free 14-day returns.

## Products in this category

| Product | Brand | Price |
|---|---|---|
| [Battery Rasmus Marine PFP680 12V 16Ah](https://baterias.com/gb/jump-starter-rasmus-pfp680) | RASMUS MARINE | 387,62 € |
| [Battery Rasmus Marine PFP1000 12V 34Ah](https://baterias.com/gb/jump-starter-rasmus-pfp1000) | RASMUS MARINE | 598,95 € |
| [Battery Rasmus Marine PFP12/24 680 12V 16Ah](https://baterias.com/gb/jump-starter-rasmus-pfp12-24-680) | RASMUS MARINE | 654,61 € |
| [Battery Rasmus Marine PFP12/24 1300 12V 34Ah](https://baterias.com/gb/jump-starter-rasmus-pfp12-24-1300) | RASMUS MARINE | 1.191,85 € |
| [Battery Rasmus Marine PFP 12/24 1500 12V 45Ah](https://baterias.com/gb/jump-starter-rasmus-pfp12-24-1500) | RASMUS MARINE | 1.482,25 € |

## Technical team (editorial authorship)

The FAQs, guides and comparisons on this site are reviewed by the baterias.com technical team — over 25 years of experience validating automotive batteries.

→ https://baterias.com/gb/technical-team

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*baterias.com — Automotive batteries · 2026-08-10*