Just as the NOCO Genius Boost Plus GB40, this FlyHi portable car jump starter falls into the category of small batteries that are super portable, can charge a multitude of devices and is also good for cranking your car in case of emergencies. Still, the reason why this is one of the best selling models for this year is that it has a ton of extra features which aren’t always needed but are handy when you are in a situation that requires them. With a small footprint this tiny powerhouse can be carrier not only anywhere in your car but also in your backpack if you device to go out camping and need a portable battery charger with you. People who hike a lot actually get the FlyHi battery for all its other uses besides the car jumping part which shows you how much a bargain it is for the price you will be paying. Either way, let’s dive into its features and see what makes it special compared to its competition.
Our Verdict: We recommend this portable jump starter to anyone who values portability and cannot spare the space for a bulky battery in his car. This FlyHi model has enough features to keep you happy and is a great value for money. The only possible downside is that in terms of raw power it won’t go head to head with some of the big batteries out there and its peak amps aren’t enough to crank big 6 or 8 cylinder diesel engines more than just a few times.
Features That Make It Stand Out
This jump starter offers a better than average performance when compared to other models in this price range, however, there are some issues regarding how it performs in certain weather conditions, which you’ll definitely want to pay close attention to, especially if you live in a colder or hotter climate.
Of course, one of the biggest selling points for this model is how small it is. Its compact, lightweight design makes it very glove box friendly, so it’s easily accessible when you’re on the road.
Whenever we review portable batteries we like to emphasize on the portability aspect. That being said, let’s start with the biggest selling point of this FlyHi jump starter:
These small car jump starters become more and more popular mainly due to the reason that people find them a great deal not only for car emergencies but for those weekends out with the family. Most of them have powerful LED flashlights and can charge your devices up to a couple of cycles.
In terms of dimensions, this doesn’t get any bigger than a large smartphone but it weighs a hair over one pound which makes it feel very thick and is easy enough to carry around in your hand or backpack.
The construction on this model is rigid and far more durable than some other similar batteries. Even though FlyHi do not advertise this directly, this unit is sealed shut and is wet and shock resistant, even though it doesn’t have an official IP rating. We found it quite durable even when dropped on hard surfaces but don’t go around dropping it anywhere just to test it out. The 18 month warranty FlyHi is giving you will not cover structural damage from falls and hits.
On top of the charger there is an LCD screen which complements the modern-looking design and gives you plenty of information about the battery status and charges left on it. On the side, there are the ports. Let’s talk about them now…
First on the left, there is a 5V/2.1 Amp USB socket which is used to charge devices. Due to its low amps it won’t charge as fast as a dedicated fast charger but that also means that this is far more beneficial for the overall battery health and it gets you more juice out of the battery (since fast charging drains more mAh than normal trickle charging).
Next to that are the output, power button, 15V input for charging, the On/Off button for the jump starting feature and the actual jump starting port for the cables.
In the DC output you can toggle between 12, 16, and 19 Volts which are shown on the display. The actual toggling is done with the “power” button. This charging feature has a current of 3.5 Amps which can be used for bigger devices such as laptops, even though the battery itself won’t be enough for more than ¼ of the actual battery.
Note: the USB and DC ports cannot be used simultaneously, which is a downside for people who want to charge multiple devices at once. Some other batteries in this class can use two or more of their ports at once but they usually cost double the price of the FlyHi jump starter.
Power Numbers And Jump Starting Capabilities
The starting current here is 250 Amps and it peaks at around 500. It has an operating temperature of -4 Fahrenheit to around 140 which is an industry standard. If you live in a colder climate we suggest getting a battery that works at less than -4 Fahrenheit.
When it comes to petrol engines, this thing can crank a 4 liter one more than 10 times. Due to the small size, though, you will have to give it some time to rest between cranks if you fail to start up your car. Diesel engines are a whole different story. We do not suggest getting this if you have anything above 2.5 liters and more than 4 cylinders.
The device must always be charge at least halfway through before cranking. Below 25% charge it won’t crank your car at all.
If you are not using this battery, you still have to recharge it every few months just because it loses charge over time. This happens 2x faster during extreme hot and cold weather so you will have to recharge it far more often then.
In terms of performance, if you need a jump starter you can rely on any time of the year, whether you’re dealing with extreme heat or intense cold, then this isn’t the model for you. Most people purchase a jump starter to keep in their car or truck to have it on hand in the event of an emergency. So, what good is a jump starter that can’t handle intense weather conditions? In fact, the manufacturer clearly states that this model should not be left in your car if it’s extremely hot or cold outside. Not only with certain weather conditions negatively impact the jump starter’s performance, but if you leave it in your glovebox when temperatures exceed ninety degrees there’s a chance the battery may catch fire. This disclaimer should be enough to give most potential buyers pause.
As we mentioned earlier, the battery will need to be charged more frequently during the winter or summer months compared to other jump starters in this price range. Some buyers claim it needs to be recharged at least twice a month, otherwise you’ll have a dead jump starter on your hands. Fortunately, this model is covered by an eighteen month warranty which will cover any issues you encounter with the battery.
Obviously, this isn’t a model you want to heavily rely on, especially if you live in a colder or hotter climate. However, it can make a great back up jump starter.
Is it Worth a Second Look?
This type of unstable performance is pretty common with jump starters in this price range. Despite its flaws, the jump starter still has some great features to offer including the variety of DC and USB ports you can use to charge sensitive electronic devices, and the durable, waterproof and shockproof design that makes it a great choice if you need a model to take with you on a long hiking trip or if you’re travelling across country.
If you’re searching for a more powerful jump starter that can handle intense weather conditions then head over to our Buyer’s Guide for some great tips on jump starters and a look at other leading models.
- Compact design
- Handles drops nicely
- LCD display to give you vital information
- USB and DC ports for charging
- Affordable Price
- 18 months warranty
- You get all the cables you need right out of the box
- Won’t cut it for bigger diesel engines
- Cannot use more than one port at the same time