I’ve tried countless portable USB chargers in the past and if you are looking for the best portable USB charger for your Android smartphone or tablet, definitely take a look at Cheero Danboard USB chargers.
These come in 2 different models with 10,400mAh capacity and also 6,000mAh capacity. The larger unit is capable of re-charging your phone about 5-6 times and the smaller unit about 2-3 times depending on the size of your phone battery.
Both of these chargers come with 1A and 2.1A output which can charge two devices simultaneously. The 2.1A output charges so fast, I find it even faster than my AC wall adapter.
Best of all, these USB chargers are really durable and holds charge for weeks if you don’t use it, which is great for traveling or even using it in your house.
Although I tend to stay home mostly (as I work at home getting high on Android all day long), I do find having portable USB charger very useful when my phone runs out of battery. I don’t have to be tethered to a wall but just bring my portable USB charger to my couch or bedroom.
Overall, these are certainly the best portable USB charger for your Android devices, and also competitively priced at $39.99 for the smaller unit and $49.99 for the larger.
You can get them here:
6000mA version: http://bit.ly/danboard6000mah
10400mA version: http://bit.ly/danboard1000