---
product_id: 51429981
title: "Ultramax Lawnmower Battery 12V 18Ah - (Replaces F19-12B)"
brand: "ultramax"
price: "1245 Lei"
currency: RON
in_stock: true
reviews_count: 9
category: "Ultramax"
url: https://www.desertcart.ro/products/51429981-ultramax-lawnmower-battery-12v-18ah-replaces-f19-12b
store_origin: RO
region: Romania
---

# Compact 181x76x167 mm size 12V 18Ah power capacity Heavy-duty plates for double lifespan Ultramax Lawnmower Battery 12V 18Ah - (Replaces F19-12B)

**Brand:** ultramax
**Price:** 1245 Lei
**Availability:** ✅ In Stock

## Summary

> 🔋 Power your lawn care with confidence—Ultramax keeps you cutting edge and cutting grass!

## Quick Answers

- **What is this?** Ultramax Lawnmower Battery 12V 18Ah - (Replaces F19-12B) by ultramax
- **How much does it cost?** 1245 Lei with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ro](https://www.desertcart.ro/products/51429981-ultramax-lawnmower-battery-12v-18ah-replaces-f19-12b)

## Best For

- ultramax enthusiasts

## Why This Product

- Trusted ultramax brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Fits like a glove:** Compact dimensions (181x76x167 mm) designed to replace popular models like Yuasa NP17-12 and Powersonic PS12180, making upgrades seamless.
- • **Peace of mind guaranteed:** Backed by a 1-year manufacturer warranty, combining reliability with risk-free performance.
- • **Versatile orientation use:** Can be installed in any position except continuous inverted, giving you flexible mounting options for your equipment.
- • **Ready to roll out of the box:** Supplied fully charged and fresh from stock, so you can install and start mowing immediately—no downtime, no hassle.
- • **Power that lasts twice as long:** Heavy-duty plates and unique separators deliver cyclic capability twice that of conventional batteries, ensuring your mower keeps going season after season.

## Overview

The Ultramax Lawnmower Battery 12V 18Ah is a sealed lead-acid rechargeable battery engineered for high performance and longevity. Featuring heavy-duty plates and unique separators, it offers twice the cyclic lifespan of standard batteries. Compact and compatible with popular models, it arrives fully charged and ready to install, backed by a 1-year warranty for dependable power in lawn mowers and other equipment.

## Description

Ultramax NP18-12, Sealed Lead-Acid Rechargeable Battery for use with Emergency Lighting, General Electronics, Medical, Mobility, Security, Uninterruptible Power Supply, Lawn Mower. etc Can be used to replace Yuasa NP17-12, NP18-12B, Powersonic PS12180, NP20-12. Dimensions: L(mm) W(mm) H(mm) 181 77 167

Review: Good replacement at a good price. - Arrived on time and fully charged. Easy to fit and started first time so works fine on our Mountfield 1530 H. At £49.99 an excellent price compared to Mountfield. Early days so can’t comment on how long it will last but will report back if there’s a problem.
Review: Works Great! - The Battery Is A Good Job Fits And Works Great Will Please !

## Features

- Ultra Max NP18-12, 12v 18Ah. Dimensions: L(mm) W(mm) H(mm) 181 76 167
- Brand New Fresh Stock for Maximum Performance 12v 18Ah Usable in any orientation (except continuous inverted).
- Longer lifespan due to Heavy-duty plates and unique separator systems to deliver cyclic capability twice as long as conventional batteries
- Supplied with 1 Year Manufacturer Warranty Support
- Superior High Performance Battery - Supplied Fully Charged

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00TPPYGDI |
| Best Sellers Rank | 53,492 in Garden ( See Top 100 in Garden ) 22 in Lawn Mower Batteries |
| Guaranteed software updates until | unknown |
| Item model number | SLAUMXNP18-12 |
| Manufacturer | ULTRA MAX |
| Product Dimensions | 18 x 7.6 x 16.7 cm; 49.52 kg |

## Product Details

- **Battery capacity:** 18 Amp Hours
- **Battery cell composition:** Sealed Lead Acid
- **Brand:** Ultramax
- **Number of batteries:** 1 12V batteries required.
- **Recommended uses for product:** Emergency,Medical

## Images

![Ultramax Lawnmower Battery 12V 18Ah - (Replaces F19-12B) - Image 1](https://m.media-amazon.com/images/I/71XWdrThWZS.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good replacement at a good price.
*by J***B on 11 March 2025*

Arrived on time and fully charged. Easy to fit and started first time so works fine on our Mountfield 1530 H. At £49.99 an excellent price compared to Mountfield. Early days so can’t comment on how long it will last but will report back if there’s a problem.

### ⭐⭐⭐⭐⭐ Works Great!
*by J***Z on 7 February 2025*

The Battery Is A Good Job Fits And Works Great Will Please !

### ⭐⭐⭐⭐⭐ Excellent Value
*by Z***K on 10 June 2023*

Nothing complicated to say here. Battery was dispatched and arrived very quickly. The price was very competitive and it came fully charged. Easy to fit as it was an exact replacement for the old unit. Buy with confidence.

## Frequently Bought Together

- ULTRA MAX Lawnmower Battery Ultramax 12V 18Ah - (Replaces F19-12B)
- MOTOPOWER MP00205A 12V 800mA Fully Automatic Battery Charger/Maintainer - UK Plug

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*Product available on Desertcart Romania*
*Store origin: RO*
*Last updated: 2026-02-09*