---
product_id: 186350368
title: "CTEK (56-959) Silver MUS 4.3 TEST & CHARGE 12 Volt Fully Automatic Charger and Tester"
brand: "ctek"
price: "₨4962"
currency: SCR
in_stock: false
reviews_count: 6
url: https://www.desertcart.sc/products/186350368-ctek-56-959-silver-mus-4-3-test-and-charge
store_origin: SC
region: Seychelles
---

# 12V output power Supports up to 160Ah batteries Spark-free & reverse polarity protection CTEK (56-959) Silver MUS 4.3 TEST & CHARGE 12 Volt Fully Automatic Charger and Tester

**Brand:** ctek
**Price:** ₨4962
**Availability:** ❌ Out of Stock

## Summary

> 🔋 Charge smarter, drive longer — never get caught powerless again!

## Quick Answers

- **What is this?** CTEK (56-959) Silver MUS 4.3 TEST & CHARGE 12 Volt Fully Automatic Charger and Tester by ctek
- **How much does it cost?** ₨4962 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.sc](https://www.desertcart.sc/products/186350368-ctek-56-959-silver-mus-4-3-test-and-charge)

## Best For

- ctek enthusiasts

## Why This Product

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

## Key Features

- • **Deep Battery Revival:** Reconditioning mode restores deeply discharged & stratified batteries
- • **Smart 8-Step Charging:** Patented float/pulse tech maximizes battery life & performance
- • **Plug & Play Simplicity:** Set it and forget it—automatic operation with memory recall
- • **Safe & Silent Operation:** No surges, spikes, or sparks—protects both you and your vehicle electronics
- • **All-in-One Test & Charge:** Integrated battery & alternator diagnostics for total vehicle health

## Overview

The CTEK MUS 4.3 TEST & CHARGE is a fully automatic 12V battery charger and tester designed for lead-acid batteries up to 160Ah. Featuring patented 8-step charging with float/pulse maintenance, it safely revives, charges, and maintains batteries while testing battery and alternator health. Its spark-free, reverse polarity protected design ensures user and vehicle safety. Ideal for professionals and enthusiasts seeking reliable, hands-off battery care with a 5-year warranty.

## Description

The MUS 4.3 TEST&CHARGE combines an advanced micro-processor controlled battery charger with an integrated battery and alternator test function to provide the ultimate in battery testing, charging and maintenance. While in CHARGING mode, the unit provides excellent performance on batteries from 1.2Ah up to 110Ah. It solves a broad range of battery problems and features which include a patented automatic de-sulphation program. The charger has a special reconditioning function that will revive and restore deeply discharged and stratified batteries. The patented Float/Pulse maintenance makes the charger ideal for long-term maintenance. The RECOND and SNOWFLAKE modes operate individually or together in both 0.8A and 4.3A programs providing great flexibility for the user. The TESTING mode has three easy to use programs to test battery voltage, start power and alternator performance to provide a complete picture of battery and vehicle charging system health. The MUS 4.3 TEST&CHARGE is easy and safe to use, protects vehicle electronics, spark-free, reverse polarity protected and short circuit proof.The 4.3 TEST&CHARGE has a 5 year limited warranty.

Review: Will not work in the UK - The mains plug is an American style flat 2 pin plug so will not work in the UK. Returned.
Review: Excellent product. Tested on 2015 Acura TLX SH-AWD with standard AGM battery. It worked in normal car mode and significantly faster in the snowflake mode. Positive was connected to the battery and negative to one of the unpainted bolts next to the cross stabilizer bar ( close to the windshield on the drivers side under the hood ) Also tested on 2017 BMW X3 xdrive 28i. Charger was connected to the terminals under the hood. For this vehicle, snowflake mode was working much better. I think it charges with slightly higher voltage that works better with BMW AGM battery. I tried normal car mode, but it was super slow and not sure if it was effective. Charger stayed cold on touch in the normal car mode. In the snowflake mode, it was warm on touch but not hot and it was able to complete the charge overnight. Going forward, I will be using only snowflake mode for BMW AGM battery. That setting is recommended for certain types of AGM batteries. Garage temperature was around 10 c, and it was charged overnight in both cases. It may take longer if your battery is really low. Charger will memorize last setting, so just connect it and then plug in the wall. Easy to use. TIP: Press the button for 2 seconds to switch between test mode and charging mode. Sometimes, it's necessary to do this after you plug in the charger. - Blinking lights - user selection required ( either for test mode or charging mode ) - Steady light - Test mode ( only one light ) - Steady lights - charging mode ( steady lights showing the phase of the charge ). If it doesn't go automatically in this mode, you may have to press the button for 2 seconds and then select the proper charging mode ( car/snowflake/motorcycle )

## Features

- COMPLETE BATTERY CARE - Test & Charge’s Unique & patented system to recover, charge & maintain all lead-acid battery types to maximize performance & extend life.
- SAFE TO USE - User safety through spark-free operation & reverse polarity protection. Vehicle electrical safety through exceptionally clean voltage & current delivery with no surges or spikes.
- CONNECT & FORGET - Simple plug & play operation. Select the program & mode & leave the charger to do the rest.
- UNIQUE 8 STEP CHARGING - Float/Pulse maintenance ensures ideal battery care during periods of inactivity. While also testing the battery condition to ensure maximum LiFePO4 battery life & performance.
- TESTS BATTERY & ALTERNATOR - 3 unique test programs establish condition & performance of battery & vehicle charging system. Plus patented float/pulse maintenance for batteries up to 160Ah.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00GODGN9E |
| Best Sellers Rank | 128,585 in Automotive ( See Top 100 in Automotive ) 632 in Car Battery Charging Units |
| Box Contents | 1 CHARGER, CLAMPS, EYELETS |
| Brand Name | CTEK |
| Colour | Silver |
| Customer Reviews | 4.6 out of 5 stars 933 Reviews |
| Global Trade Identification Number | 07350009569590 |
| Input Voltage | 120 Volts |
| Item Dimensions D x W x H | 10.2D x 10.2W x 1.3H centimetres |
| Item Type Name | MUS 4.3 TEST & CHARGE 12 Volt Fully Automatic Charger and Tester |
| Item Weight | 1.9 Pounds |
| Item height | 0.5 inches |
| Manufacturer | CTEK |
| Manufacturer Part Number | 56-959 |
| Output Voltage | 12 Volts |
| Product Warranty | 5 Year Warranty |
| Specification Met | CE |
| Unit Count | 1.0 Count |

## Product Details

- **Brand:** CTEK
- **Colour:** Silver
- **Item weight:** 1.9 Pounds
- **Output voltage:** 12 Volts
- **Product dimensions:** 10.2D x 10.2W x 1.3H centimetres

## Images

![CTEK (56-959) Silver MUS 4.3 TEST & CHARGE 12 Volt Fully Automatic Charger and Tester - Image 1](https://m.media-amazon.com/images/I/61DAUFsVltL.jpg)
![CTEK (56-959) Silver MUS 4.3 TEST & CHARGE 12 Volt Fully Automatic Charger and Tester - Image 2](https://m.media-amazon.com/images/I/61mEvOuf9EL.jpg)
![CTEK (56-959) Silver MUS 4.3 TEST & CHARGE 12 Volt Fully Automatic Charger and Tester - Image 3](https://m.media-amazon.com/images/I/61u2DrJ+u4L.jpg)
![CTEK (56-959) Silver MUS 4.3 TEST & CHARGE 12 Volt Fully Automatic Charger and Tester - Image 4](https://m.media-amazon.com/images/I/61yowNQmu2L.jpg)
![CTEK (56-959) Silver MUS 4.3 TEST & CHARGE 12 Volt Fully Automatic Charger and Tester - Image 5](https://m.media-amazon.com/images/I/71+QYW2+7ZL.jpg)

## Questions & Answers

**Q: Looking for a battery recharger for the small 12 volt in Prius 2011. Will this work-- or is it overkill?**
A: I can recommend this battery charger.  The reason is that performance and usability are very good.
I think it is a good choice to use even if you buy a large car.

**Q: Alternator test work on motorcycles too?**
A: Yes ... make sure the battery is fully charged so you won't get a false result. Switch the MODE button to alternator >> start the engine and hold it at 2000 rpm >> if it is charging less than 13.3V it will light up (BAD) >> 13.3V-14.0V (FAIR) >> and above 14.0V (OK).

**Q: What is the difference of this one from model 56-864?  They seem identical**
A: model #56-864 doesn't check your Alternator to see if it is charging u battery

**Q: Is this unit also good for trickle charge?**
A: The product description and other web references say it will work as a trickle charger. In fact the unit goes into a trickle charge mode after it cycles through the battery tests and reconditioning steps. I have used it as a trickle charger for days in a row on a car that gets little use. So far I am satisfied with the product.

## Customer Reviews

### ⭐ Will not work in the UK
*by M***P on 9 January 2026*

The mains plug is an American style flat 2 pin plug so will not work in the UK. Returned.

### ⭐⭐⭐⭐⭐ Review
*by N***D on 24 February 2019*

Excellent product. Tested on 2015 Acura TLX SH-AWD with standard AGM battery. It worked in normal car mode and significantly faster in the snowflake mode. Positive was connected to the battery and negative to one of the unpainted bolts next to the cross stabilizer bar ( close to the windshield on the drivers side under the hood ) Also tested on 2017 BMW X3 xdrive 28i. Charger was connected to the terminals under the hood. For this vehicle, snowflake mode was working much better. I think it charges with slightly higher voltage that works better with BMW AGM battery. I tried normal car mode, but it was super slow and not sure if it was effective. Charger stayed cold on touch in the normal car mode. In the snowflake mode, it was warm on touch but not hot and it was able to complete the charge overnight. Going forward, I will be using only snowflake mode for BMW AGM battery. That setting is recommended for certain types of AGM batteries. Garage temperature was around 10 c, and it was charged overnight in both cases. It may take longer if your battery is really low. Charger will memorize last setting, so just connect it and then plug in the wall. Easy to use. TIP: Press the button for 2 seconds to switch between test mode and charging mode. Sometimes, it's necessary to do this after you plug in the charger. - Blinking lights - user selection required ( either for test mode or charging mode ) - Steady light - Test mode ( only one light ) - Steady lights - charging mode ( steady lights showing the phase of the charge ). If it doesn't go automatically in this mode, you may have to press the button for 2 seconds and then select the proper charging mode ( car/snowflake/motorcycle )

### ⭐⭐⭐⭐⭐ Review
*by A***Z on 11 August 2020*

Ojo, no es un cargador de batería; es un mantenedor de batería (Battery Tender). Mantengo la batería de mis autos clásicos siempre en óptimas condiciones. Sirve para motocicletas igualmente. Hay un auto que no le he cambiado la batería en aprox 8 años. La condición es siempre tener conectada la batería al aparato y proteger el aparato con un regulador de voltaje. Lo recomiendo ampliamente.

## Frequently Bought Together

- CTEK 4.3 Test & Charge, 12 Volt Fully Automatic Charger with Unique Battery and Alternator Testing, Ideal for Long Term Storage
- CTEK (56-304) Comfort Connect Extension Cable, 8.2 Feet
- CTEK Connect CIG Plug, Permanent Connection for Hard-to-Reach Batteries, Easy Connection to Your CTEK Battery Charger Using The Vehicle 12V Accessory Sockets, for Cars, Motorcycles & Other Vehicles

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*Product available on Desertcart Seychelles*
*Store origin: SC*
*Last updated: 2026-01-31*