Schumacher Electric 6-in-1 Battery Charger Engine Starter 100 Amps 6V 12V

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1. drogers14613 Verified Buyer – 8 April 2024

   This replaces my 25+ year old Schumacher battery charger. I recently used this new one to recharge a totally discharged big battery from an old Cadillac…. worked great!!
   

2. Cos M.A.C. Techs Verified Buyer – 9 June 2024

   This is used everyday in a commercial automotive shop, primarily for keeping batteries charged during the endless electric and hybrid cars module programming. Always keeps batteries where you want them, once it detects the battery has been charged enough it goes green and reduces just to a maintain flow. Automatically switches from high charge to low charge when needed. Jump starts dead batteries as well but dont expect it to jump start anything crazy. Excellent product, the crew loves using it.
   

3. Digger Dan Verified Buyer – 24 June 2024

   Really like this charger, I use it a lot
   

4. Solar11 Verified Buyer – 21 July 2024

   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.

   

5. Eric V. Verified Buyer – 21 August 2024

   Operates as designed for my year of ownership at this point. I keep it for jumpstarting and battery maintenance on an rv, 2 boats, a side by side, and 2 trucks. Haven’t had it even so much as heat up more than a couple degrees above ambient in all weather conditions. I don’t recommend throwing it around but it appears pretty sturdy considering as much abuse as it’s taken.
   

6. C. Reay Verified Buyer – 11 October 2024

   Working very well for my needs of charging totally dead golf cart six volt batteries in sequence. Sturdy item.
   

7. Jason D. Verified Buyer – 3 December 2024

   I just used it to start a Motoped that had a dead battery. Battery is holding its charge. I believe this was a return unit as the box was double taped on the lid. Charger appeared to be missing any packing such as a plastic bag. None of the cables had ties. They were loose in the box. No foamcore protection? Charger was loose and moving in the box. Sticker on the backside was falling off for some reason IDK why. It does work though, and it’s not beat up. I plan on keeping it.

   

8. Hurricane Verified Buyer – 1 February 2025

   I am trying unit now but it looks opened and used boxes were damaged as per photos

   

9. Little Bean Verified Buyer – 9 February 2025

   Thus far, “subject” of review seemed to work efficiently & effectively compared to my previous charger, though i personally find subject rather heavy. Subject seemed to charge much quicker to 100% on the one marked 2-6A button than my previous charger. on the other hand, my previous (much lighter) charger, before it became inoperative, was limited to charging 2-4-6A (3 separate buttons; i always had it charging at 6A), while subject ranges fr. 2-6A to 30A & 100A (3 buttons), ostensibly to enable it to speed up charging as well as to jump-start the car if required, both of which (30 A & 100A) i have not attempted as i had primarily intended its use to trickle charge the car battery during minus C degrees in Vancouver, B.C. winter (admittedly usually mild winter), as the car was always parked outside.
   

10. N.N. Verified Buyer – 18 February 2025

    This item is heavy, which means it’s built well. Priced very well. Satisfied.
    

11. Crayfish Verified Buyer – 22 February 2025

    It comes with a US plug and is incompatible with UK 240 volt supply. There is no indication of this either on the ezysurvival.com page or on the charger’s box. A massive inconvenience returning it to the USA
    

12. Anonymous Verified Buyer – 3 March 2025

    I bought this 3 years ago, the first one that ezysurvival.com shipped to me ended up being a used dirty scratched up unit that didn’t work right, it was suppose to be a new unit. ezysurvival.com returned it and shipped me this unit, it looked new but the box didn’t have a user manual. The first time I used it on my car battery it seemed to function right, it went right to work and even did the recondition function and after it was finished charging it turned off. The next time I used it on the same battery it charged the battery but never would turn off, the battery % button wouldn’t work either, never really knew if the battery was completely charged or not. Now it’s 8/24 and I put the charger on my camper battery bank four 6volt batteries wired as one 12volt battery. At first it went to work but seemed to be working to hard, so I broke the battery bank in half, charging just two 6volt batteries as one 12volt but the charger still worked to hard, the cables and clamps got hot. The charger never turned off but it did charge the batteries. I then hooked it up to the other set and it didn’t do much, the cooling fan came on as soon as it was plugged in but it was not charging, panel lights were on but nothing, it’s dead. Used 3 times and that’s it. Schumacher used to be a great quality product but not anymore. My unit shows it was made in Mexico, not in the USA. Of course it’s out of warranty. Not happy in the least.
    

13. Steven Wheat Verified Buyer – 11 April 2025

    This charger is really a great thing to have around. It does so much and pretty easy to use as well.
    

14. JRM Verified Buyer – 19 April 2025

    High quality charger. Automatically chooses the battery type. The digital readout is nice. I really like seeing the percentage readout. I docked one star bc there isn’t a good way to manage the cables and power cord. I wish they would add some type of built in cord wrap or something. Other than that, no additional complaints.