Thanko have come up with a take on the Kairo disposable hand warmer here with an eco product that doubles as both a way to heat up your chilly fingers in the winter and also charge up your phone. The Mobile Battery Hand Warmer Electric Kairo has a 3,000mAh capacity and can serve as a booster for your various mobile devices should you run out of juice.
Otherwise, use it as a method for staying warm in the colder month. We're all guilty of using our electronic devices as de facto heaters in the winter when even the slightest warmth from a music player or phone is appreciated. Now you can literally follow this logic through and use the compact battery as your hand warmer!
There are two heat modes. On the lower setting the battery will reach 42°C (108°F) in 3 minutes while the higher one takes about 5 minutes to hit a toasty 47°C (117°F). And if you are using it as a charger, the output port will work with iPad, iPhone and most other devices on the market, and a handy LED lamp tells you in three stages (30%, 70% or 100%) how far along the charge is. It even becomes a torch as well that can last five hours.
The Mobile Battery Hand Warmer Electric Kairo features:
Size: 42 x 117 x 23.5mm (1.7 x 4.6 x 0.9")
Weight: 200g (7.1 oz)
Input: micro USB 5V/1A
Output: USB 5V/2A
Battery: 3,000mAh, 18650 Li-ion x 1
Heater: 3.7W x 2
Heating levels: weak, strong
Can be used around 500 times
Stays warm for around 2.5 hours
Cannot charge up while using as heater/warmer
Instructions: Japanese (but easy to use)
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