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- 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.
Attwood PowerGuard Battery Boxes Designed for Marine, RV, Camping, Solar and More
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Frete Grátis em todo o BrasilProduto Original Importado dos EUA
CTEK 4.3 Test & Charge, 12 Volt Fully Automatic Charger with Unique Battery and Alternator Testing, Ideal for Long Term Storage
*$1,835.60
Informação adicional
| Manufacturer | CTEK |
|---|---|
| Brand | CTEK |
| Model | 56-959 |
| Item Weight | 1.9 pounds |
| Product Dimensions | 4 x 4 x 0.5 inches |
| Item model number | 56-959 |
| Is Discontinued By Manufacturer | No |
| Exterior | Painted |
| Manufacturer Part Number | 56-959 |
| OEM Part Number | 56-959 |
| Voltage | 12 Volts |
| Date First Available | November 14, 2013 |
Dana –
Would buy again
Congsterism –
Easy tips (that are not in the manual or on any video)
1) TESTING the battery: don’t plug in the CTEK MUS 4.3 (into a power outlet) just hook it up to the battery and flip the mode to the appropriate one you wish to test.
2) Charging the battery: Plug into the wall, clip on the battery, select an appropriate mode.
I had a DEAD battery. I refilled it with a proper mixture of Epson salt + distilled water. I put on an older charger that did steady 2 amps for 24 hours (caps off). Once it was “boiling” I removed the older charger and place the CTEK on the battery. Set it for reconditioning, did this twice. The battery holds a perfect charge.
Note: Epson Salts + distilled water will work. I didn’t need to remove the old battery acid. The batter was 22 months old, it was just sitting for almost a year.
250g Epson salt + 16 oz of Distilled water.
Magnesium sulfate and lead sulfate undergo a single replacement reaction. Magnesium metal is more reactive than lead, so it is capable of replacing it in the plates. Take note; Magnesium sulfate is highly soluble in water. With this, lead metal is gradually restored and removed around the plates
Amazon Customer –
Easy to use. Keeps battery charged. Just a bit pricey for what it is.
Congsterism –
The MUS 4.3 Test & Charge is my second CTEK Product (the first being the Lithium US for my motorcycle). Please be advised that I may be slightly biased (not affiliated/sponsored by anyone).
I purchased this unit specifically for keeping charge on stored vehicles and reconditioning batteries in daily driving cars. Per the user manual, CTEK recommends RECOND once a year or whenever battery is depleted completely. If you’re just buying this unit for the first time, it might be a good idea to RECOND too.
It took about 9.5 hours (15:30-01:00 next day) to complete all 7 cycles, including RECOND, on my BMW F13 650i. Even though this car mostly sit in my garage for the past half a year or so, it still kept a lot of juice. Its BMW OEM battery is either 90 or 105 Ah, that would take a longgggggg time to charge if it were completely dead.
Yes, CTEK is much more expensive than competitors’ products, but it has automatic sequence to test, charge, and maintain your batteries. Other products out there will certainly get the job done as well, though I’m not sure if they’ll do it as well as this unit. There is a nice feature splitting the charge sequence into a faster bulk cycle (<80%) and absorption (80-100%). Not to mention that it will perform tests on the battery and alternator so you won’t waste electricity to charge if it will just die again soon.
Generally speaking, $100 for this product is amongst the best investment for your precious weekend cars. If you can afford to have fun, you should definitely keep a battery trickle charger on hand, especially if you live in a colder climate. You wouldn’t want a dead battery to ruin a nice day out, and you definitely don’t want inferior chargers to damage your batteries.
Paul Lucas –
Cord could be longer. Bought extension.
Pete Rigazio –
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.
Alejandro Mendez –
Ever since the start of pandemic, I have been working from home ever since. Which also means I am driving my car much less than before, especially during winter months. When temperature drops below -15C my car gives off battery drain warning. Although I just replaced the battery a year ago. This device works great when you don’t drive your car a lot in the winter, simply hook it up and leave it plugged in to maintain your battery. It takes about a day to have my battery fully charged (reaches stage 7). After that, by leaving it plugged in, the device will monitor battery voltage and if it detects a drop, it will send pulse to battery and recharge. The device also has battery test function, a must have for your car!
Philip A. Saunders –
This charger keeps one’s battery at its full and best charge state for the many days when car is garaged.
It will let you know if there is an issue with your battery so steps can be taken before battery failure when away from home. Provides peace of mind. Phil – 01-09-2025
AOei –
This was a second unit in our family… bought by my son for his car. The first unit bought over 2-3 years ago and regularly used is still working fine. The new unit looks like the old except that the output cable now is as robustly constructed as the AC power line. The old output cable was just a 2-wire cord (unprotected). Otherwise same as before…. works great…. simple operation… and very effective in keeping car batteries from being from being flat due to prolonged lack of use.
Someone –
I have a 2009 BMW 335 that I drive infrequently. I was getting the yellow low battery and inspection pictograms regularly. The battery is less than 1 year old. Before using this charger I confirmed that it isn’t an AGM battery. I bought the extension cables so I could close the hood while charging.
The CTEK does work, but it takes a long time to go beyond step 4 to step 7 (green light, fully charged). Once fully charged the pictograms stopped coming up. The 1st charge attempt with the recondition step included took more than 24 hours to reach full charge., but the battery was low again after 1 week of not driving, the time went blank. Reaching the fully charged state again in the 2nd charging session without reconditioning took about 3 days! I am leaving it connected for an extra day or so in the hope that the battery will remain fully charged longer.