All you need to do is take 2/3 from the battery capacity and divide it by the battery capacity of the DSLR camera.
The use of a power bank to recharge your DSLR camera can be quite useful. This is especially true when you’re moving with no spare batteries and you’re nowhere near a power source to bring power to the battery. Not all cameras however can charge via USB and some will need to be charged using an alternative method using a special adapter. Here we will show you how to power up your DSLR camera using a power bank.
On average a DSLR camera has a power rating of 7.4V/1.5-2A, but most of the smaller battery capacities are rated around 3.6-3.7V nominally. You can also use the USB cable that came with the Powerbank to charge the DSLR. These generally have a USB-type socket on one end and a micro-USB or USB-type C connector on the other end. Type-A plugs into the power bank and micro-USB goes into the camera-charged port.
Among some cameras that can be recharged via USB are the Canon G9X, G7X Mark II and the GSX. All these have 3.7V – batteries and a micro USB port. This makes it easy for them to charge via USB. The Panasonic ZS-100 Point ‘n’Shot camera, which is 7.2V to charge, has a USB-friendly charging port.
You could also need to buy a special adapter that allows you to connect the DSLR camera battery to the USB – port. This will increase the output voltage and it is convenient if your DSLR camera needs more than 5 volts. This can be of useful use for DSLR cameras such as Sony FS700 (7.2V), Canon 7D (7.2V) and Canon EOS 5D Mark III (7.2V). These cameras have USB 2.0 ports.
The use of a special’adapter gives you more control since it can easily boost the volts to what the battery needs. If your DSLR camera battery has a voltage of 6V or higher, the Adapter will pump it up to 6V. Alternatively, you can use a step-up voltage converter to do the job. In this regard it may be worthwhile looking into Qutaway 5V to DC 12V step up voltage converter.
It is important to note that the power bank capacity must be larger than the battery capacity of the camera. This is to ensure that there is enough storage for a full charge or two. It can be quite easy to figure out how many full charge ends up performing it. All you have to do is to take 2/3 from the power bank capacity and divide it by the battery capacity of the DSLR camera. This will tell you how many fully-loaded it can complete. If you’re wondering why 2/3 of the power bank capacity should be used instead of its full size, read this article which provides the actual battery capacity in full.
The DSLR battery is also able to be charged outside of the camera. It also depends on how the charger is connected to the mains. If the charger has a USB connection, it can be plugged into a powerbank. It will be impossible to use a power bank if the charger is connected with a mains cable.
It may be worth considering camera charging power banks if, at the same time, they’re 60% more expensive than traditional power banks. The way to go would be to use a power bank specifically designed to power up your DSLR camera. This is because the energy emitted by a traditional power bank is low and camera batteries have a large capacity so that it would take some time to fully charge it.