STANLEY Triple USB Port Car Battery Charger

Last updated date: July 15, 2022

DWYM Score


STANLEY Triple USB Port Car Battery Charger

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We looked at the top Car Battery Chargers and dug through the reviews from some of the most popular review sites. Through this analysis, we've determined the best Car Battery Charger you should buy.

Update as August 2, 2022:
Checkout Stay On The Road With The Best Car Battery Charger for a detailed review of all the top car battery chargers.

Overall Take

In our analysis of 165 expert reviews, the STANLEY Triple USB Port Car Battery Charger placed 14th when we looked at the top 17 products in the category. For the full ranking, see below.

From The Manufacturer

With the STANLEY FATMAX J7CS jump starter and power station, you no longer need to dread roadside emergencies when your vehicle won’t start. This compact, portable device delivers jump-starting power with 700 peak amps and 350 instant starting amps. That’s enough power to jump-start your car, truck, SUV, motorcycle, boat, RV, ATV, or tractor; all without the need to use another vehicle for assistance. Simply connect the clamps to the battery, turn on the switch and start your vehicle. The reverse polarity alarm will alert you when there is an improper connection. A high-powered LED light rotates 270 degrees to help you work in the dark. This jump starter is equipped with a 120 PSI air compressor to help inflate tires, sport equipment, or other items with low pressure. The built-in triple USB port comes in handy to charge your phone and electronic devices. It features an integrated charging cube (a 120V charging adapter) that allows the STANLEY FATMAX J7CS jump starter to be charged using a standard extension cord, so you don’t need to keep track of a separate specific charging cable. Extension cord sold separately. For optimal performance, the unit should be charged every 30 days when not in use. Once used, the unit should be charged immediately overnight.

Expert Reviews

Expert Summarized Score

14 expert reviews

User Summarized Score

6,079 user reviews

What experts liked

Audible alarm system and LED indicator alerts you when you reverse polarity. This enhances the durability of your car battery.
- Julie Pro
The ultra bright LED light swivels 270 degrees and shines light just where you need it.
- Top Product Reviews
Powerful air compressor
- Car Bibles
It also comes with a built-in air compressor capable of producing 120 PSI which can save you from the trouble of decreased air pressure due to colder temperatures.
- The Z8
September 8, 2019 | Full review
The Stanley Fatmax J7CS power station jump starter is quite a durable and heavy duty device. It’s fully portable and compact for easy storage in the trunk of your car. It has a solid exterior with indicator lights and easy to use switches.
- Auto Quarterly
It comes with an audible alarm, reverse polarity led indicator, and high-power 270 degrees pivoting led light
- Disneysmmoms
September 9, 2019 | Full review
Small size and lightweight
- Z7 Premium
June 8, 2019 | Full review
Featuring a pivoting flashlight, you would be able to inflate a tire or jump start engines even at night time.
- Your Car Needs You
Audible alarm signals in case of any emergencies
- Top 10 Rec
The J7CS has a compressor so you can air tires or inflatables up as well as jump start your car, or recharge your electronic devices.
- RUF Motors
270° Pivoting high powered LED emergency light
- My First Car Guide
February 3, 2016 | Full review
A built-in air compressor with a backlit gauge.
- OBD Advisor
Its power ratings are 350 instant and 700 peak battery amp, and for safety, it has a reverse polarity indicator as well as an audible alarm to warn you.
- Wheels Tips
The Stanley Fatmax features a built-in 120 PSI air compressor to pump up those flats on the side of the road and 700 peak amps to boost your battery.
- Car Repair Life
December 14, 2018 | Full review

What experts didn't like

According to some consumers, the compressor feature may stop working ater some uses.
- Top Product Reviews
Peak current may not be sufficient for multiple uses
- Car Bibles
The battery may need regular maintenance
- Auto Quarterly
Might tip over easily
- Your Car Needs You
Lead acid batteries require regular maintenance.
- Top 10 Rec
The tire inflator does not have the auto cut-off feature, which means that you need to manually cut it off when your tires get the right air pressure
- My First Car Guide
February 3, 2016 | Full review
The product may stop working after a while.
- OBD Advisor
Larger and bulkier compared to its predecessor
- Wheels Tips
Batteries require maintenance
- Car Repair Life
December 14, 2018 | Full review

Our Expert Consultant

Vicki Liston 
Home Improvement Expert

Vicki Liston writes, produces, and narrates “On The Fly…DIY,” an award-winning home improvement and DIY show of unique project tutorials for the casual DIY’er.

Home improvement and all things DIY have been Liston’s passion since she bought her first house in 2007 and she started making video blogs in 2014. She’s performed hundreds of DIY projects, from small ones to major, wall-smashing renovations and can teach you how to make a trendy DIY barn door for cheap. The proceeds earned from “On The Fly…DIY” are donated to no-kill animal shelters and rescue organizations. You can find her show on Prime Video.

An Overview On Car Battery Chargers

A car battery charger is one of those things you might not think about buying until you need it, but then you will wish you had the foresight to purchase one in advance. Choosing the right vehicle battery jumper or charger device depends on several factors unique to your situation.

The primary consideration to determine is what type of car battery charger will best suit your needs.

Vicki Liston is the writer, producer and narrator of “On The Fly…DIY,” an award-winning home improvement and DIY show of unique project tutorials for the casual DIY’er.

“There are two basic types of car battery chargers: trickle and smart (also called multi-step) chargers,” shares Liston. “I don’t consider the float chargers to be actual ‘chargers,’ as they won’t resurrect a dead battery and are only used to maintain the charge.”

Learning the pros, cons and capabilities of a car battery charger type is helpful in the decision-making process.

“Trickle chargers are the most inexpensive,” Liston says, “but they are also the slowest.”

While this might seem like a downfall, it can be an advantage in certain situations.

“If you aren’t in a major rush to recharge, a trickle unit will serve you well,” explains Liston. “It’s actually better for the battery to charge slower than faster as a fast charge can generate a lot of heat and damage the battery.”

If safety is top of mind, a smart charger might be a better choice.

“Smart or multi-step chargers employ the use of a microprocessor to assess the battery and make automatic decisions about how to charge. The standard versions have the automatic stop feature to avoid overcharging, damage, and explosions,” Liston points out. “They can also detect if you’ve accidentally connected the cables to the wrong terminals, called ‘reverse polarity protection.’ A trickle charger will ruin a battery if connected incorrectly while a smart charger just won’t begin to charge at all. Understandably, these are the more expensive option, but they are also the safest.”

Be sure to check the amp rating on a potential car battery charger, as this will let you know how quickly it will charge your battery.

“Trickle chargers are rated at below one amp so it may take a few days to fully charge a battery,”  Liston says. “Again, slower is better for the battery, but you might not have the luxury of waiting around that long and need it up and running in a hurry.

“Higher rated chargers can run around 20 amps and the emergency ‘get this thing started NOW’ type chargers can crank out 40 amps to get you on the road in a hot minute,” continues Liston. “Some smart chargers allow you to choose a recharge setting based on your circumstances. You can set it lower when you have the time to wait and it won’t expend unnecessary, damaging heat. Set it higher only when the occasion calls for speed. You’ll have the best of both worlds in one charger.”

The Car Battery Charger Buying Guide

  • If you decide on a trickle car battery charger, Liston highly recommends an advanced model to ensure the safest operation possible. “The lower end models should not be ‘attached and forgotten’ as they will not stop charging when the battery has reached maximum capacity,” advises Liston. “Because of this, they run the risk of overcharging and even causing an explosion. The higher-end models, usually referred to as advanced trickle chargers, can detect when a battery is fully charged and either stop or automatically switch over to ‘float’ mode to maintain the charge. “
  • Since you should always put safety first, the right clamps are essential. “Whether you go with a trickle or a smart charger, I highly recommend looking for a model with spark-proof clamps,” Liston notes. “Sparks can not only damage both the charger and the battery but they can cause fires so this safety feature should be a must.”
  • “If you are only looking to keep a car battery charged, opt for a 12-volt only model,” suggests Liston. “However, if you’ve got other types of battery-operated vehicles, such as an ATV, boat, jet ski, riding lawn mower, or golf cart, you might want to consider a 6/12 or a 12/24 volt charger. This will allow you to use your charger in multiple applications instead of having a different charger for each volt size. 6/12/24 chargers are commercially available however they are extremely expensive and it’s cheaper to own both a 6/12 and a 12/24 than one 6/12/24 version.”