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Warms on both sides of the unit to keep hands toasty
Two temperature settings: 109F (approx. 5 hrs) and 120F (approx. 4 hrs) when in room temperature.
Charges via USB digital products including mobile phones, MP3 players, digital cameras, etc.
Rechargeable 4400mAh lithium-ion battery lasts up to 500 recharges
Power indicating LED lights show remaining charge as well as heat setting
EnergyFlux Slim provides everything you've come to expect from the original EnergyFlux, keeping your hands warm and toasty at all times AND never letting your phone or other mobile devices run out of battery. With wrap-around aluminum casing, EnergyFlux Slim will provide even heat throughout the unit to keep both your palms and fingers warm at the same time.
It can also serve you all year round as a backup battery. EnergyFlux Slim can charge digital products up to 5 times (depending on battery size of device being charged) before its own power is depleted, making it convenient for occasions when power sockets aren't easily accessible.
With a slimmer but longer body, EnergyFlux Slim allows for a comfortable grip with more contact for those with wider palms. You could even keep one inside your hand muff to stay warm and toasty when out in the freezing cold.
Additionally, to simplify things, EnergyFlux Slim now comes with one less charging chord. To charge your digital device, just plug the USB charging cable provided with your device straight into the unit. And, when you need to add more juice into EnergyFlux Slim, use the USB cable provided to plug it into your computer or USB adpater.
- It may take a little time for EnergyFlux Slim to heat up after being left out in the cold. - Heating times are extended by using any form of insulation (e.g. placing it in your gloves, pockets or scarf).
- hand warmer (4.2 x 1.7 x 1 inches, 4.6oz) - micro B USB to USB cable to charge the hand warmer - pouch - user manual
Most Helpful Customer Reviews
I'm very happy with this product. I had ordered a different version of the EnergyFlux hand warmer previously(EnergyFlux 4400mAh Rechargeable Double-Sided Hand Warmer / USB External Back Up Battery Pack Charger), and loved the handwarmer function, but it had one glaring flaw--its secondary function as a battery pack for USB devices. The other product only had a mini USB port--which is fine to charge the unit, but worthless for charging cell phones and other mobile devices.
I ordered this version even though there were no reviews yet, and I'm glad I did.This version functions well, just as the other one did, but has one port for charging the unit (micro USB) and one port for using the battery to charge other devices (a full size USB port--yay!)
I've had the opportunity to use this on several occasions. As a hand warmer, it works very well. It doesn't put off a huge amount of heat in the low power mode, but it actually puts off just about the right amount of heat to...
so i'm always cold. always. i'm the kind of person that wears thermals when it's in the 50's. recently, i found myself working outside at night in the rain in detroit in october. you can imagine it's not the easiest or warmest.
so i figured i'd try this hand warmer before moving onto one of the lighter fuel versions.
i scoured the internet and read all the reviews for the various rechargeable hand warmers and went with this one.
here's the scoop:
the size is perfect. it's smooth and fits the palm of my hand nicely. the battery duration is good: on low heat it lasts for about 3 1/2 to 4 hours and high heat about 2 1/2 hours. the heat: i found both low and high heat good. i was worried low would be too low but as i said, i was out at night, in the rain, in detroit, in october - and my hand got warm no problem. for someone like me it could be hotter, but even actual fire could be hotter for someone like me.
This all started because I got a new car which does not a heated steering wheel. My previous one (a BMW) did and it was the greatest thing ever. In any case, gloves don't work for me as they just tend to keep the cold in rather than warm me up so i started looking for something to warm my hands in the car. These seem to have great reviews so I decided to try it. First the PROs the unit seems to be reasonably well made, has a pleasant shape that fits well in the hand and does get warm and charges your various devices etc.
the CONs: the biggest con for me is that it lacks heating capacity. What I mean is this: if you turn on the unit and let it stand at room temperature for a few mins, it will reach a nice temperature (haven't measured yet but guessing around 110-120). However, as soon as you touch it with hands that are less than hot, the temperature drops quickly and drastically - the aluminum case combined with a weak-ish heating element just can't...
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Please note that this item is imported from the USA, and is designed to be used in the USA. In addition, if the unit is powered it will come with a US plug and an adapter/transformer may be required. Please click here for more information on power requirements, or check with us if you are unsure or need any assistance!
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