Hiya Mare, thanks for your question! The SpiderMonkey is not a battery, it can only put out the power currently being put into it by the power source. If you put power into it via the middle DC port on the back, this is the most powerful. The supplied charger is 16V.
The best way to think of it is like a charger cable with four ends (once connected to a power supply), as you’re never charging the Spidermonkey itself– the power is just passing through, it is literally just transforming one output into four. The Spidermonkey itself stores no power. The manufacturer says that they have customers who have owned the Spidermonkey for years and it’s still been working fine.
The amount of time it takes to charge is dependent on a few factors. If your device is the only thing charging, it will be quicker to charge than if you plug in multiple devices as it has to share the power from the mains between all attached devices.
The first two ports are rated for higher power transfer than the second two, so charging from the first two would be quicker than charging from the second two. The time it would take to charge also depends on the models of the iPad and the iPhone, as the more recent the phone the higher the battery capacity, and therefore the more power it needs and the longer it will take to charge.
Hope this helps!
Date published: 2017-09-13