Instruction: Answer the given question using the supporting document.

Input:
Question: What's the charging time for it
Document: Charged this unit for 6 hours when I first got it and it gave me 3 charges to my android before it went from 4 bars (Fully charged) to 3 bars. This product also has two USB output ports for charging more then one item at a time. Happy Happy!! !
So far the KMASHI has performed as advertised. I have been able to recharge my i-Phone 5 about 4 times to full charge. I also hooked up both i-Phone and i-Pad simultaneously for recharge, although the time to recharge took a bit longer when both devices are charging - not something I would routinely do, but it works.
[Recharge Time]During recharge, the MP816 draws up to 1.5A - as long as your USB power source can supply it. So it takes about 8 hours to fully recharge the internal 10Ah battery pack. But if your USB power source can only supply 0.5A, then it could take 20 hours! One drawback I discovered is that there is no pass-thru charging.
It is quite heavy and about as long as my Samsung S3 .We has no problem in charging both the Iphone and the Samsung at the same time. Great item if you have a backpack to tote it around . I has four small LED which serves as the battery meter . You have to press the small button to start charging your devices .For more portable , I would use the smaller but more expensive Anker 6000 mAh which we also have.
A four-LED bar graph shows the state of charge and indicates when the Kmashi itself is  charging.I also bought the Vinsic &#34;Tulip,&#34; (see separate review) charger, which has about one-third the capacity of this unit, but is smaller and lighter. Both are useful. For a camping trip or any time when you might need multiple charges from the charger without recharging its own battery, the Kmashi cannot be beat.I find myself using the Tulip more.
Worked for 5 minutes one time. I had to return it
keep my phone have power all the time, good product .I will recommend my to buy this product.Properly I will order again.
I guess that isn't really long considering the length of time It would have taken to charge the phones 4 times each.
Very pleased with product. Easy to use.can charge two phones or any other devices at the same time. Power button : press once(quickly) to turn on , press and hold down (2-3 seconds) to turn off...
I was not actively using the iPad, but WiFi, GPS, and Bluetooth were enabled. Cellular data/radio was turned off during this time.At 2 hours, the iPad 2 was at 90%, and three LEDs were lit on the Kmashi.At 3 hours, the iPad 2 was at 100%, and two LEDs were still lit on the battery pack.
Answer: If you're asking how long it takes to charge this battery, approximately 6-8 hours if you use a 2.1 amp charger