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Schumacher SC1308 2/12/30/100A 6V/12V Battery Charger and Engine Starter

4.3 4.3 out of 5 stars 1,550 ratings

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Purchase options and add-ons

  • MULTIPLE MODES: 30 Amp quick boost mode, 100 Amp engine start for cars, SUVs, and small trucks
  • DIGITAL DISPLAY: Easy to use controls, LED light indicators, buttons, and digital display
  • BUILT-IN TESTER: Battery and alternator tester provides charge level and helps diagnose electrical problems
  • AUTOMATIC: Automatically detects 6 or 12V batteries; Microprocessor-controlled to automatically adjust the amperage rate to charge and maintain
  • SAFE AND EASY TO USE: Reverse hook-up protection helps prevent damage to battery and charger; Float mode monitoring automatically maintains optimum battery charge
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From the manufacturer

Schumacher SC1308 2/12/30/100A 6V/12V Battery Charger and Engine Starter
Start, Boost, Charge, and Maintain

Versatile Battery Charger with On-Board Diagnostics

Delivering a powerful 100 cranking amp engine start, 30A boost mode, and 6A<>2A charge/maintain rates, the SC1308 fulfills most charging needs. It also features a built-in battery and alternator tester.

Advanced Battery Charging Technology

Schumacher SC1308 2/12/30/100A 6V/12V Battery Charger and Engine Starter

FULLY AUTOMATIC

The unit will automatically detect a connected battery’s voltage and once the battery is fully charged will halt charging and shift to maintain mode.

Schumacher SC1308 2/12/30/100A 6V/12V Battery Charger and Engine Starter

VEHICLE DIAGNOSTICS

The SC1308’s battery and alternator tests allows users to determine their battery’s charge level and diagnose vehicle electrical problems.

Schumacher SC1308 2/12/30/100A 6V/12V Battery Charger and Engine Starter

BUILT-IN SAFETY

Protect your battery and the SC1308 with reverse hook-up protection, which prevents damage if the clamps are reversed.

Schumacher SC1308 2/12/30/100A 6V/12V Battery Charger and Engine Starter

MULTI-STAGE CHARGING

The SC1308 uses an advanced charging algorithm designed to keep your battery in top condition and extend its lifespan.

Schumacher SC1308 2/12/30/100A 6V/12V Battery Charger and Engine Starter

YOU CAN RELY ON SCHUMACHER

KEEP IT ROLLING WITH SCHUMACHER’S LINE OF JUMP STARTERS AND BATTERY CHARGERS


Professional mechanics and automotive enthusiasts trust Schumacher Electric to provide high-quality and innovative automotive products. Since 1947, Schumacher has been designing and producing industry-leading power conversion technology. Schumacher’s current range of products includes EV chargers, traditional battery chargers, maintainers, jump starters, portable power stations, diagnostic tools, battery accessories, LED work lights, lithium-powered products, and more.

Compare Schumacher Jump Starters and Battery Chargers

Schumacher SC1308

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Customer Reviews
4.3 out of 5 stars
1,550
4.4 out of 5 stars
182
4.2 out of 5 stars
186
4.4 out of 5 stars
846
Engine Start
100 cranking amps 85 cranking amps 80 cranking amps 50 cranking amps
Boost
30A 30A 20A 10A
Charge/Maintain
6A<>2A 6A<>2A 6A<>2A 6A<>2A
Voltage
6V/12V 6V/12V 12V 12V
Battery Types
Standard, AGM, and Deep-cycle Standard, AGM, and Deep-cycle Standard, AGM, and Deep-cycle Standard, AGM
Display Type
Digital display Digital display LED indicators LED indicators
Reverse Hook-up Protection
Yes Yes Yes Yes
Battery/Alternator Tester
Yes Yes No No

Product Description

The Schumacher SC1308 is a fully automatic battery charger and engine starter designed for use with cars, SUV’s and small trucks. With 100 Amp engine start and 30 Amp boost mode, this unit delivers results when you need it most. Microprocessor controlled to automatically adjust the amperage rate to charge and maintain, with multi-stage charging for added precision, safety and battery life. Digital display with LED indicators provides easy-to-read charge levels and helps diagnose electrical problems. Includes float mode monitoring to automatically maintain optimum battery charge, as well as reverse hook-up protection with an LED light indicator that prevents the charger from operating if the clamps are reversed. Schu Eco Energy meets the highest industry standards. DOE compliant.

Product information

Technical Details

Additional Information

Warranty & Support

Amazon.com Return Policy:Amazon.com Voluntary 30-Day Return Guarantee: You can return many items you have purchased within 30 days following delivery of the item to you. Our Voluntary 30-Day Return Guarantee does not affect your legal right of withdrawal in any way. You can find out more about the exceptions and conditions here.
Manufacturer’s warranty can be requested from customer service. Click here to make a request to customer service.

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Schumacher SC1308 2/12/30/100A 6V/12V Battery Charger and Engine Starter


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What's in the box

  • Battery Charger
  • Product guides and documents

    Looking for specific info?

    Customer reviews

    4.3 out of 5 stars
    4.3 out of 5
    1,550 global ratings

    Customers say

    Customers like the compactness of the auto part. They say it is very portable and easy to use. Customers are also happy with the value. However, some customers have reported issues with the lighting of the charger. They mention that the lights are hard to see and there are no LEDs. Customers also have issues with damage. Customers disagree on power, quality, performance, and ease of use.

    AI-generated from the text of customer reviews

    28 customers mention21 positive7 negative

    Customers like the value of the battery charger. They mention it's a great purchase for the money, a cheap charger for the quality name, and a good buy.

    "...These handles are much stronger and worth the additional money. PS...." Read more

    "...Great purchase for the money." Read more

    "Great charger for the price" Read more

    "...Yet Amazon chose to waste my time by sending out an unusable filthy piece of junk and call it "like new"...." Read more

    13 customers mention13 positive0 negative

    Customers like the compactness of the battery charger. They mention that it's very compact, powerful, and portable. Some say that it works great and is easy to use and move around. Overall, customers are satisfied with the compact size and portability of the product.

    "I'm really happy with this charger, it's light weight, easy to use and intuitive." Read more

    "...Gel, lithium etc. Good construction and heavy." Read more

    "...It's easy to carry and store. I gladly recommend this product." Read more

    "Nice compact WELL Made" Read more

    111 customers mention68 positive43 negative

    Customers are mixed about the quality of the auto charger. Some mention it's a really good charger, while others say that it failed to charge their batteries and shut off after only 15 minutes. They say they were informed the unit was defective and should be returned.

    "...The old one when I tried it, still works perfectly. Speaks well of the durability of this brand.." Read more

    "...Charge won't start and won't complete. Finally placed on batt NEG., little spark, no biggy. Now it starts charging and completed. fast...." Read more

    "Great charger, light years ahead of other chargers I've had. Brought back a very dead deep cycle...." Read more

    "...Also works with all the new style batteries. Gel, lithium etc. Good construction and heavy." Read more

    99 customers mention66 positive33 negative

    Customers are mixed about the performance of the battery charger. Some mention it does work good, while others say it stopped working properly. Some customers also say that the amber mode lights did not function.

    "...Guess what ? The old one when I tried it, still works perfectly. Speaks well of the durability of this brand.." Read more

    "just got it and did test it and it worked well, but I havent needed to actually use it yet...." Read more

    "...Placing NEG on metal non battery really doesn't work well. Charge won't start and won't complete. Finally placed on batt NEG.,..." Read more

    "It works well. It will automatically turn off when done. I got this because I needed a charger that would charge the newer AGM batteries." Read more

    26 customers mention17 positive9 negative

    Customers are mixed about the ease of use of the battery charger. Some mention that it's extremely easy to use and works as advertised, while others say that the display is primitive and not totally intuitive as to the various settings, the instructions are poor, and it'd be really hard to use if you lose the instructions. The Logic Controller is not properly programmed for this particular charger, and there is not enough information online or troubleshooting.

    "I'm really happy with this charger, it's light weight, easy to use and intuitive." Read more

    "The charger had a hard time with the group 31 batteries that we were using it on...." Read more

    "...When I got it and used it it was so easy to use that I loved it and it worked so well in a short period of time. So glad I bought it!" Read more

    "This battery charger is extremely easy to use and works as advertised...." Read more

    7 customers mention4 positive3 negative

    Customers are mixed about the power of the auto part. Some mention it's powerful, portable, and the 100 Amp jump is a great bonus. Others say that it shorts out at 30 amps, gets stuck in the 30 amp boost mode, and never reaches 12Volts.

    "Quality charger works great.100 Amp jump is a great bonus." Read more

    "First time use and its stuck in the 30 amp boost mode and I can’t change it. I hit the switch and the charger shuts off as it’s supposed to...." Read more

    "Very.... Powerful... I use them for my semi 🚛 and was very happy with the charging system...." Read more

    "...to like about this item; I tried it ONCE it power up but never reach 12Volts. It only so my battery voltage. then return to 12 Volts...." Read more

    8 customers mention0 positive8 negative

    Customers are disappointed with the damage of the battery charger. They say that it is not new, it is dirty, dented, and defective. The carry handle is smashed.

    "...Recently ran over my old one with the tractor. Smashed the carry handle. Thought ok that's it. So I ordered this new one. Guess what ?..." Read more

    "...It arrived in a battered box, the digital display with the red LEDs to show the voltage was defective, some parts did not light up...." Read more

    "I unboxed this item to find it filthy, very dusty and slightly banged up. Obviously not new. I am returning and buying somewhere else." Read more

    "...Also the handle was broken when it arrived, the box was fine so I have to assume it left the factory like that...." Read more

    8 customers mention0 positive8 negative

    Customers have negative opinions about the lighting of the jump starter. They mention that the lights are hard to see in the daytime, the display is cracked, and the LEDs are out. Some customers also report that the LED display cannot be read in the sun light.

    "...with the red LEDs to show the voltage was defective, some parts did not light up. One of the amber mode lights did not function...." Read more

    "...its fully charged and in float mode... other times it wouldn't show any lights and whole unit appeared to be totally powered off...." Read more

    "...But soon I realized the LED display can't be read in the sun light. Switching from 30 amps to 100 amps was frustratingly slow...." Read more

    "...to turn on indicating when the battery is fully charged but it never lights up -- leaving you to wonder when, or even if, the battery is charged or..." Read more

    Does Its Job But With a Few Quirks
    3 Stars
    Does Its Job But With a Few Quirks
    I received the charger today and tested it on a 900 CCA flooded lead acid (FLA) battery. This is a very large 3-month-old battery, installed in a vehicle that gets only occasional use. The car’s alternator, running at 14.1 volts, can’t keep the battery fully charged at below freezing temperatures. When first connected, the charger displayed 12.4 volts and a state of charge of around 70 percent. To observe the charger’s performance, I placed a DC ammeter on one of the cables, and a voltmeter across the terminals. The charger began charging a few seconds after the battery type and charge rate were selected. Almost immediately, the voltage increased to 15.5 volts, and current increased to 5.8 amps – within my expectations. What I didn’t expect was the charger shutting off after only 15 minutes, and illuminating the green “charge complete” LED. A battery this big, at 70 percent, would have needed several hours to charge at the 6 Amp rate. I unplugged the charger, waited a couple of minutes, and then reconnected. The charger began charging again, at 15.5 volts. It continued charging at the same voltage for about an hour, while the current tapered from 5.8 amps down to 3.8 Amps. At that point, with the charge indicator showing 98 percent, the charger again shut down, illuminating the green LED. It seemed odd that the charge terminated while still running at 3.8 Amps. I’m guessing that the charger was sensing the charging current’s rate of change, and terminated the charge when the current became sufficiently stable. The battery has been off the charger for 8 hours. I removed the surface charge with a 100-amp load, and then tested the battery on a digital analyzer. The battery now shows an open circuit voltage of 12.69 volts and SOC of 100 percent. The charger seems to have done its job, despite some “flaky” behavior. When I called Schumacher’s customer support line to speak with them about the issues, I had to listen to a “YOUR CALL IS VERY IMPORTANT TO US PLEASE STAY ON THE LINE” recording, repeated over a hundred times, before I finally had to hang up the phone. A half hour of my time was wasted during the unanswered phone call. The lack of customer support didn’t inspire my confidence in the brand.
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    Bernd
    5.0 out of 5 stars Quick charge
    Reviewed in Canada on December 3, 2023
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