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Oxa currently has two (2) extended batteries that can recharge your cellphone, phablet or tablet for multiple charges: their 7800 mAh ("Juice Box" S1) and the 10000 mAh ("Juice Box" S2).
Like all lithium ion batteries (and, especially higher-capacity, extended batteries) has to be conditioned for at least a week. By conditioning, I mean, immediately charge the batteries to 100% before using. You'd then use/drain the battery until it's completely depleted. Then fully recharging to 100% before using again. This process takes a week. And, it causes the battery to develop muscle.
*** The 7800 mAh (S1) is about an inch shorter than it's (S2, 10000 mAh) and has a center battery-indicator panel.
The kit comes with:
* Light grey felt carrying case
* Multiple USB connectors INCLUDING an Apple "Lightning" plug.
* Instruction guide
*** Performance ***
The battery recharged my completely drained cellphone in 2 ½ hours.
The phone also has two ports a 1.0 and 2.1mA outputs. But, if you use both ports, the recharging noticeably lags.
I never use the 1.0 port. Never. The 2.1 port is both faster in recharging and is great for tablets and phablets.
*** The 10000 mAh (S2) ***
The "S2" is a re-design of their earlier model, the S1. With this model, you have a LED display that has the exact percentage of battery strength that's left. This is great because you know exactly what you have left. When you're looking at extended batteries that have a 4-5 light indicator--that doesn't give you a clear answer to how much battery you have left. If you have a 4-light indicator, your battery strength is in intervals of 25%, so if you only have 2 lights on you could either have 50% battery strength or 26%-- that's a big difference.
In the last clip of the video, you can see how versatile this model is to power a pair of analog speakers for a laptop.
