Customer reviews from Stanley12volt.com
Stanley - FATMAX 100-Amp 12-Volt Fully Automatic Automotive Battery Charger Maintainer BC100BF
Average customer rating
4.8
(48 Reviews)
Rating breakdown 48 reviews
5 Stars
38
4 Stars
8
3 Stars
2
2 Stars
0
1 Star
0
Customer Reviews for Stanley - FATMAX 100-Amp 12-Volt Fully Automatic Automotive Battery Charger Maintainer BC100BF
Customer Rating
5
Yes
on November 2, 2025
Posted by: pebbleskp_4142
[This review was collected as part of a promotion.] So my husband's battery on his car was toast and we plugged this thing up to it to try to revive it and honestly so far it's worked. Which is so impressive tbh.
Written by a customer while visiting Stanley12volt.com
Customer Rating
3
Meh
on November 2, 2025
Posted by: kimkat726_7203
[This review was collected as part of a promotion.] Maybe my truck battery was just too dead, but this will not charge it whatsoever.
The packaging and actual unit are nice and very durable, the instructions are confusing and not very intuitive though
Written by a customer while visiting Stanley12volt.com
Customer Rating
4
Multifunctional
on November 1, 2025
Posted by: jessicat392_5500
[This review was collected as part of a promotion.] I wish had had this just one week before its actual arrival to help with a dead battery. This unit is extremely lightweight and is best for home use as you have to plug it into a wall. You can jumpstart, charge and check the levels of your battery. The big bonus for me is you can also check your alternator which is always a concern when your car won’t start. I also appreciate its ability to be used on multiple battery types. Extremely happy to have this product!
Written by a customer while visiting Stanley12volt.com
Customer Rating
5
Versatile and Lightweight Battery Charger/Maintain
on October 30, 2025
Posted by: corinnep14_9136
[This review was collected as part of a promotion.] This Stanley battery charger is better utilized as a battery maintainer. If you have a vehicle that doesn't get driven much or motorcycles, lawn equipment, etc., then this is for you. It will take longer to charge a car battery, but I like the concept of the float mode which is a great safety feature and will not overcharge your battery, but rather provide a low and steady voltage and maintain a full charge. There is an option to check the alternator as well. The charger is lightweight, with two cord compartments. One for the power cord and the other for the clamps. The clamps store well, because they attach to the top of the charger, however the power cord can wrap around the cord holder, but has nothing to hold it into place, and can easily unravel. There are four rubber feet on the bottom to keep the unit in place without slipping or sliding, and a convenient carrying handle. This Stanley charger is compact, easy to store, and a great versatile battery charger/maintainer for various battery types. Would make a nice gift as well.
Written by a customer while visiting Stanley12volt.com
Customer Rating
5
Portable and reliable
on October 30, 2025
Posted by: nateneedham81_4987
[This review was collected as part of a promotion.] Absolutely great product!! Greatly reduces the stress and worry of "if" the need for a jump start or a quick charge is needed, this thing has got you handled. Love the portable aspect of it as well.
Written by a customer while visiting Stanley12volt.com
Customer Rating
5
Highly effective and high quality!
on October 29, 2025
Posted by: trinat4_7132
[This review was collected as part of a promotion.] This tool was a huge fan favorite for my husband. He has had his car for 10 years and it has been riding strong, however from time to time it has had some issue with battery. On multiple occasions he has had to borrow or find a shop that could charge his battery. He now carries this in his car at all times. We love how strong and high quality this charger is, however it is light and an easy to hold with a handle on the side. It includes alternator check, battery voltage, and a battery recondition button. We are thankful to have this tool as it could really help us during a tough time.
Written by a customer while visiting Stanley12volt.com
Customer Rating
5
Great Battery Charger
on October 29, 2025
Posted by: joshuam23_2693
[This review was collected as part of a promotion.] The Stanley FatMax Battery Charger is very easy to use and works very fast to charge my battery. The versatile is great to get the job done. The Stanley FatMax Battery Charger is build with quality materials to make to last for a long time. I would highly recommend Stanley FatMax Battery Charger.
Written by a customer while visiting Stanley12volt.com
Customer Rating
5
Lots of options but fairly simple to use.
on October 29, 2025
Posted by: snick_5475
[This review was collected as part of a promotion.] This charger has worked well so far, charging my child’s go kart and my tractor batteries. It has options for lead acid and lithium with a backlit digital display. It also has multiple charging modes, but I haven’t tried them all yet. Overall it’s simple to use, it works and is a reasonable form factor. I am happy with it and if you are looking for an updated, but fairly traditional battery charger, then this one should do the trick.
Written by a customer while visiting Stanley12volt.com