Uninterruptible power supply for the Raspberry Pi
Normally, a battery or a rechargeable power pack is sufficient when running a computer; however, an uninterruptible power supply (UPS) is even better. This article explores some of the capabilities provided by these power supplies.
First Steps
Starting out with the elegant UPS called UPiS is extremely easy. You don't need to get out the soldering iron to use the UPiS with the Raspberry Pi. This UPS consists of one board connected via the GPIO pins to the Rasp Pi [1] and a lithium polymer (LiPo) battery. One of the delivered components is a piece of double-sided tape used to attach the battery to the UPS.
Once the Raspberry Pi and the UPiS are attached to one another, the setup no longer fits into a standard cover because of the increased size and the need for openings that will accommodate additional connections and switches (Figure 1). Covers for this piggy-back combination are available over the Internet, or you can build one yourself [2].
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