---
product_id: 73596392
title: "Lawnmower Battery Ultramax 12V 20Ah - (Replaces F19-12B)"
brand: "ultramax"
price: "VT79505"
currency: VUV
in_stock: true
reviews_count: 8
category: "Ultramax"
url: https://www.desertcart.vu/products/73596392-lawnmower-battery-ultramax-12v-20ah-replaces-f19-12b
store_origin: VU
region: Vanuatu
---

# Compact 181x76x167mm Size 12V 20Ah High Capacity Heavy-Duty Plates for Longevity Lawnmower Battery Ultramax 12V 20Ah - (Replaces F19-12B)

**Brand:** ultramax
**Price:** VT79505
**Availability:** ✅ In Stock

## Summary

> 🔋 Power your mower with Ultramax — because every cut counts!

## Quick Answers

- **What is this?** Lawnmower Battery Ultramax 12V 20Ah - (Replaces F19-12B) by ultramax
- **How much does it cost?** VT79505 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.vu](https://www.desertcart.vu/products/73596392-lawnmower-battery-ultramax-12v-20ah-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 designed for seamless replacement of popular models like Yuasa NP17-12.
- • **Peace of Mind Warranty:** Backed by a 1-year manufacturer warranty for dependable, worry-free power.
- • **Versatile Orientation Use:** Operates in any position except continuous inverted—flexibility for your toughest setups.
- • **Power That Lasts Twice as Long:** Heavy-duty plates and unique separators double cyclic lifespan for relentless performance.
- • **Ready to Go, Right Out of the Box:** Supplied fully charged to ensure instant, reliable starts every time.

## Overview

The Ultramax NP20-12 is a premium 12V 20Ah sealed lead-acid battery engineered for lawn mowers and a variety of high-demand electronics. Featuring heavy-duty plates and advanced separators, it delivers twice the cyclic lifespan of conventional batteries. Compact and fully charged on delivery, it ensures instant, reliable starts and fits popular replacement models. Supported by a 1-year warranty, it’s the smart choice for professionals who demand lasting power and hassle-free performance.

## Description

Ultramax NP20-12, 12v 20Ah Sealed Lead-Acid High Capacity 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, Power-Sonic PS12180 with high Capacity. Dimensions: L(mm) W(mm) H(mm) 181 76 167

Review: Purchased for my Stiga Tractor Mower - Easy replacement for original. Starts first time every time. Nothing more to say really. A good replacement battery.
Review: Good value battery - Quick delivery, connected and perfect start up of my mountfield tractor mower, not had it long enough to assess life span but looks good.

## Features

- Ultra Max NP20-12, 12v 20Ah. Dimensions: L(mm) W(mm) H(mm) 181 76 167
- Brand New Fresh Stock for Maximum Performance 12v 20Ah 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 | B00TPOWDNE |
| Best Sellers Rank | 56,977 in Garden ( See Top 100 in Garden ) 35 in Lawn Mower Batteries |
| Guaranteed software updates until | unknown |
| Manufacturer | ULTRA MAX |
| Manufacturer reference | NP20-12 |

## Product Details

- **Battery cell composition:** Sealed Lead Acid
- **Brand:** Ultramax
- **Recommended uses for product:** Power Tool
- **Unit count:** 1 Count
- **Voltage:** 12 Volts

## Images

![Lawnmower Battery Ultramax 12V 20Ah - (Replaces F19-12B) - Image 1](https://m.media-amazon.com/images/I/91-gBKBj9AL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Purchased for my Stiga Tractor Mower
*by P***L on 29 May 2024*

Easy replacement for original. Starts first time every time. Nothing more to say really. A good replacement battery.

### ⭐⭐⭐⭐⭐ Good value battery
*by J***H on 8 September 2022*

Quick delivery, connected and perfect start up of my mountfield tractor mower, not had it long enough to assess life span but looks good.

### ⭐⭐⭐⭐ Terminals not as shown
*by F***N on 27 May 2019*

Battery delivered ok but not as shown in picture . Battery ok but not nut and bolt connection but screw down terminals so had to adjust lugs on leads.

## Frequently Bought Together

- Lawnmower Battery Ultramax 12V 20Ah - (Replaces F19-12B)
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**Shop now:** [https://www.desertcart.vu/products/73596392-lawnmower-battery-ultramax-12v-20ah-replaces-f19-12b](https://www.desertcart.vu/products/73596392-lawnmower-battery-ultramax-12v-20ah-replaces-f19-12b)

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*Product available on Desertcart Vanuatu*
*Store origin: VU*
*Last updated: 2026-05-08*