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
4
It’s a great asset to have on hand.
on December 7, 2025
Posted by: margaretg59_6868
[This review was collected as part of a promotion.] I received the Stanley FatMax BC100BF 100 Amp Battery Charger & Maintainer in exchange for my honest review, and I'm glad I did. This charger has proven to be quite useful.
One of the best features is its versatility. It works with both lead-acid and lithium batteries, which is fantastic if you have different types of batteries around. The 100 Amp output means it charges quickly, which is a real time-saver.
The build quality feels solid. It’s compact and easy to store, which is a plus for anyone who doesn’t want bulky equipment cluttering their space. The LED indicators are straightforward and make it easy to see the charging status at a glance.
What I love most is how it handles charging. It does a great job keeping everything topped off, and the automatic shut-off function prevents overcharging, which is really reassuring. I've used it on both lead-acid and lithium batteries, and it handled both without any issues.
In short, the Stanley FatMax BC100BF is a reliable and efficient option for anyone needing a battery charger. It gets the job done well and is worth considering!
Written by a customer while visiting Stanley12volt.com
Customer Rating
5
Awesome car sidekick
on December 6, 2025
Posted by: xsolngngoodnitex_1924
[This review was collected as part of a promotion.] I am so incredibly happy to have this on hand. It's great and very durable. I love the ability to charge the car battery as well as checking on other things in my car that may need assistance. The cables are nice and definitely well made. I love the fan so it doesn't overheat and the design is awesome. It's not bulky either. So if I need to take it somewhere,it's very easy and convenient to do so. The screen is bright and easy to read as well. I am happy with this and glad it's in my car just incase.
Written by a customer while visiting Stanley12volt.com
Customer Rating
5
Must have!
on December 3, 2025
Posted by: anasteisha_6245
[This review was collected as part of a promotion.] Picked up the Stanley Fatmax 100A charger mainly for dead batteries and it’s been really handy. It’s straightforward to use, the display is clear and I like that it has both a faster charge option and a maintainer mode for keeping a battery topped off. It’s not tiny, but it feels solid and does the job without extra fuss.
Written by a customer while visiting Stanley12volt.com
Customer Rating
5
Charging is easy and let's you know if your altern
on December 2, 2025
Posted by: julienedc2_9722
[This review was collected as part of a promotion.] Stanley Fatmax battery charger works great at charging your car battery. The charger is easy to connect and setup to your vehicle. This is very durable and maintenance is very simple. It also can test your alternator and let you know if its good or bad.
Written by a customer while visiting Stanley12volt.com
Customer Rating
3
The cords are too short for this to be useful to t
on December 1, 2025
Posted by: melissald4da_9828
[This review was collected as part of a promotion.] I wish I had a more insightful review to share. I was excited to receive this; it came in the mail right when I was experiencing car troubles, specifically battery troubles, and I thought it was a sign. I quickly found that this is not convenient as a car engine starter. If you think you can put this in your trunk in case of emergency, you'll be disappointed. The products only works if it is plugged in. The instructions deter the use of an extension cord, but the cords that are integral to the unit are far too short for this to be a practical tool to most people. I gave it 3 stars because in theory, the unit works and does what it says it does, but if I'm honest, I didn't get to try all the features I wanted to because of the inconvenient cord/cable lengths.
Written by a customer while visiting Stanley12volt.com
Customer Rating
5
Convenient and fast
on December 1, 2025
Posted by: Anonymous
[This review was collected as part of a promotion.] I've been searching for battery charger and found Stanley is the one easiest to use, and to store, not heavy to carry like older one. Recommended!
Written by a customer while visiting Stanley12volt.com
Customer Rating
4
Quiet and easy to use
on November 30, 2025
Posted by: anthonyb66_521
[This review was collected as part of a promotion.] This stanley charger and maintainer is very nice. I like that it has points where the positive and negative clips can grab on so they aren't loose and dangling. The handle feels very strong. I like how there is a spot for the plug-in cord to wrap up, but I wish there was something that would grab that so the end isn't loose dangling. The screen is very bright and easy to read. The button functions are very simple to understand.
Written by a customer while visiting Stanley12volt.com
Customer Rating
5
Very nice battery charger.
on November 30, 2025
Posted by: jarrodr2_6209
[This review was collected as part of a promotion.] The Stanley FatMax battery charger is a great addition to anyone's garage. Whether you need to charge a lithium ion battery or a lead acid battery, the Stanley FatMax has you covered.
Written by a customer while visiting Stanley12volt.com