---
product_id: 66552931
title: "WestCo 12V20P Factory Activated Maintenance-Free Rechargeable Sealed Lead-Acid Battery by MK Battery"
brand: "mk battery"
price: "R2965"
currency: ZAR
in_stock: true
reviews_count: 8
url: https://www.desertcart.co.za/products/66552931-westco-12v20p-factory-activated-maintenance-free-rechargeable-sealed-lead-acid
store_origin: ZA
region: South Africa
---

# 20AH Capacity 275 CCA 12V Power WestCo 12V20P Factory Activated Maintenance-Free Rechargeable Sealed Lead-Acid Battery by MK Battery

**Brand:** mk battery
**Price:** R2965
**Availability:** ✅ In Stock

## Summary

> 🔋 Power Your Journey with Confidence!

## Quick Answers

- **What is this?** WestCo 12V20P Factory Activated Maintenance-Free Rechargeable Sealed Lead-Acid Battery by MK Battery by mk battery
- **How much does it cost?** R2965 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/66552931-westco-12v20p-factory-activated-maintenance-free-rechargeable-sealed-lead-acid)

## Best For

- mk battery enthusiasts

## Why This Product

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

## Key Features

- • **Power Up Your Ride:** Experience reliable performance with 12V of pure energy.
- • **Sealed Design for Safety:** Leak-proof and spill-proof for peace of mind.
- • **Compatible with BMW Models:** Direct replacement for 51814 and 51913—perfect fit guaranteed.
- • **Maintenance-Free Convenience:** No hassle, no upkeep—just plug and play.
- • **Unmatched Cold Cranking Amps:** 275 CCA ensures your vehicle starts in any weather.

## Overview

The WestCo 12V20P is a factory-activated, maintenance-free sealed lead-acid battery by MK Battery, designed to deliver 275 CCA and 20AH capacity. Ideal for BMW models, this battery ensures reliable performance without the need for upkeep, making it a perfect choice for busy professionals on the go.

## Description

WestCo 12V20P Factory Activated Maintenance-Free Rechargeable Sealed Lead-Acid Battery by MK Battery

## Features

- Genuine WestCo 12V20P by MK Battery
- Replaces 51814, 51913 BMW
- 275 CCA, 20AH (20 hour rate)
- Voltage: 12 Volts
- *** CAN NOT SHIP TO CALIFORNIA OR TEXAS ***

## Images

![WestCo 12V20P Factory Activated Maintenance-Free Rechargeable Sealed Lead-Acid Battery by MK Battery - Image 1](https://m.media-amazon.com/images/I/71nG2vSTflL.jpg)
![WestCo 12V20P Factory Activated Maintenance-Free Rechargeable Sealed Lead-Acid Battery by MK Battery - Image 2](https://m.media-amazon.com/images/I/81RwrhE1pKL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Great Product and Support
  

*by C***D on Reviewed in the United States on June 30, 2022*

I’ve owned two of these WestCo 12V20P batteries for my 2004 R1150 GS, and I heartily endorse them for this application. They are exactly the right size and post configuration. The case is sturdy and I’ve never had any corrosion issues. They cost less than half what a BMW battery does from the dealership. I also appreciate MK Battery’s prompt shipping and customer support. They bent over backwards to get me a replacement at the end of my warranty.

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Purchased for 1980 BMW R65
  

*by G***G on Reviewed in the United States on September 11, 2019*

I have used this battery on the same bike, that I had purchased it for in the past and feel that it is worth the money. Some years I was a kind and thoughtful owner who properly stored and tended to his motorcycle, other years it slept outside in the elements(located in costal Maine... Snow, rain, heavy salt in the air off the ocean, terrible freeze thaw, and other unpleasantness) The previous WestCo battery lasted about 10 years I am hoping to have the same luck with this one. I will say that when the other died it was a very fast process.

### ⭐ 1.0 out of 5 stars







  
  
    defective from the seller
  

*by J***. on Reviewed in the United States on December 26, 2023*

I needed a BMW motorcycle replacement battery, I ordered this one & after arrival it sat for a couple months in the unopened box, I installed it only to find it would not act as a normal battery would, my voltmeter said 12.7 yet it would not crank the motor & it made the tach & speedo needles climb when key was on. A quick call to my mechanic friend & he confirmed when he has seen these symptoms the battery is defective, with a fella en route to purchase this bike and my farm being several hours from replacing it, it became a big deal. The manufacture has told me they will refund my order....that has yet to happen....i will give a sitrep when more is known..but beware.

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**Shop now:** [https://www.desertcart.co.za/products/66552931-westco-12v20p-factory-activated-maintenance-free-rechargeable-sealed-lead-acid](https://www.desertcart.co.za/products/66552931-westco-12v20p-factory-activated-maintenance-free-rechargeable-sealed-lead-acid)

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*Product available on Desertcart South Africa*
*Store origin: ZA*
*Last updated: 2026-03-05*