Take a 10,000mAh Anker battery and a DC coupler from Amazon, add a hot-shoe plate and some industrial strength velcro, and throw it all at your DSLR. Nope, it's not a craft project—it'll give your camera an amazing 9 hours of battery life.
This hack, by Chris Winter, gives a standard DSLR about 9 times its standard battery life. Rough round the edges, for sure, but pretty cool—and affordable, too. [Chris Winter via DIY Photography via Peta Pixel]