
Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 9 - Jul 14
For Your Every Summer RSVP, with Code: SUMMER15
Description
CTEK Power Inc 56-958 MUS 4.3 Polar - 12VFeatures Complete Battery Care Unique and patented system to recover, charge and maintain all lead acid battery types to maximize performance and extend life. Safe and easy to use User safety through spark free operation and reverse polarity protection. Vehicle electrical safety through exceptionally clean voltage and current delivery with no surges or spikes. No need to disconnect the battery from the vehicle when charging. Connect and Forget Simple
FeaturesComplete Battery Care - Unique and patented system to recover, charge and maintain all lead-acid battery types to maximize performance and extend life.
Safe and easy to use - User safety through spark free operation and reverse polarity protection. Vehicle electrical safety through exceptionally clean voltage and current delivery with no surges or spikes. No need to disconnect the battery from the vehicle when charging.
Connect and Forget - Simple plug and play operation. Select the program and mode and leave the charger to do the rest.
Unique 8 step charging - The patented 8 step program tests battery condition and revives, charges and maintains to ensure maximum battery life and performance. RECOND recovers deep discharged and stratified batteries. FLOAT/PULSE maintenance ensures ideal battery care during periods of inactivity.
Charges down to -22°F (-30°C) - Specially developed for use in extreme cold conditions and featuring AC and DC cables adapted for low-temperature use.
Extends battery life - The unique features of CTEK chargers combine to maximize performance and extend battery life.
SUPERB CHARGING WITH ADDED WINTER PERFORMANCE
The MUS 4.3 POLAR (Part No. 56-958) has been specially developed to offer excellent all-around charging with special cold weather performance and adapted AC and DC cables to handle severe cold down to -22°F (-30°C). The MUS 4.3 POLAR is an advanced microprocessor controlled battery charger providing unrivaled performance on batteries from 1.2Ah up to 110Ah. Features include the ability to diagnose a battery's condition to establish if it can receive and retain a charge, a patented automatic desulphation program, and a special reconditioning function that will revive and restore deeply discharged and stratified batteries. ‘Snowflake’ mode ensures ideal charging performance even in the most extreme cold conditions. Patented Float/Pulse maintenance makes the MUS 4.3 POLAR ideal for long-term maintenance. The entire process of battery testing, charging, and maintenance is easily followed on the clear LED display.
The MUS 4.3 POLAR is a fully automatic ‘connect and forget’ 12V charger with 8 charging steps and offers selectable 0.8A and 4.3A programs. The RECOND and SNOWFLAKE modes operate individually or together in both 0.8A and 4.3A programs providing great flexibility for the user. Wide charging range on all lead-acid battery types from 1.2Ah up to 110Ah with additional maintenance capability to 160Ah. Splash-proof and dustproof (IP65). The MUS 4.3 POLAR is easy and safe to use, protects vehicle electronics, spark-free, reverse polarity protected, and short circuit proof. The MUS 4.3 POLAR features a 5-year warranty. Alligator clamps and eyelets included.
TECHNICAL SPECIFICATIONS
Part No.
56-958
Input voltage AC
100-120VAC, 50-60Hz
Charge Voltage
14.4 / 15.0 / 15.8 V
Charge Current
Max 4.3 A
Type of Charger
8 step, fully automatic charging cycle
Type of Battery
12V lead-acid batteries (Wet, MF, AGM, GEL)
Battery Capacity
1.2-110 Ah, up to 160 Ah for maintenance
Warranty
5-year warranty
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.5 ★★★★★
Based on 2032 reviews
Sort
Product Reviews
★★★★★ 5
Best mineral sunscreen
Style: SPF 30, Size: 3 Ounce (Pack of 1)
Applies easily, smells great and hardly leaves a whitecast! One of my favorite mineral sunscreens that I’ve tried.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 17, 2024
★★★★★ 3
White film left
Style: SPF 30, Size: 3 Ounce (Pack of 1)
I know that mineral sunscreen is the best. But this one will leave a white film on you. I have used other sunscreens that work without the white film.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 4, 2026
★★★★★ 5
You get Zink, but no “tropical” scent
Style: SPF 30, Size: 3 Ounce (Pack of 1)
Great product. I wanted a Zink based sunscreen for my face, but I was hoping it would still have the Sun Bum traditional “tropical” scent.
Sadly nope.
I’m mixing it with the traditional Sun Bum 30 so I can get my tropical feel while keeping my face safe from sun damage. Hopefully I don’t turn green :)
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 21, 2024
★★★★★ 5
Worked great
Style: SPF 30, Size: 3 Ounce (Pack of 1)
My skin is very sensitive to the sun. My skin does not tan I sun burn quickly! I love this sunblock because according to the ingredients it's reef & sea animal friendly. I found this product didn't leave a very noticeable white cast on my skin. I was able to blend it with very little noticeable white cast. I didn't find it sticky or really rubbing off on my clothes or bathing suite. In respect to all the things I mention it was all at a very minimal notice. For me it didn't have a smell of any kind. I used this product on vacation in Mexico. I tried & stayed out of the sun as much as I could. I went on a Mayan ruin tour following a snorkeling excursion & did not get a sunburn! Usually for that long period of time in the sun I would have received a light sunburn using other sunblocks but instead I actually got a light tan! I did apply this product on my body & face. I have to say this is my 1st time using this brand & it worked super well for me. :) *Just FYI when I applied this product I didn't need to apply to much if you do its going to obviously leave a white cast. I only applied as needed through out the day. Also make sure you give it time to sit to soak into your skin before putting on your clothes. After all you do have to wait a few min after applying before going out in the sun. That's any sunblock directions.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 13, 2022
★★★★★ 5
Finally! A sunscreen that works and does not burn my eyes.
Style: SPF 30, Size: 3 Ounce (Pack of 1)
I am unable to use chemical or hybrid sunscreens on my face because they "melt" and destroy my eyes. Living in the south means daily sunscreen year-around is a must - having found this product is a godsend. Unscented, no chemicals to discolor my clothes, no titanium dioxide so no purple-white ghostly cast, easily rubs in. Simply perfect!!!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 8, 2025