Picked up the RAVpower 10400 mAh battery to run my 70d. Does anyone know how long this battery can power the 70d for from a full charge? May be hitting a festival in NH tomorrow and was curious to know. Thanks!
If you don't get at least 8 hours recording per charge, send it back!
Sorry, I don't have the Ravpower, but...
After a lot of trial and error I've found some 5V power banks on fleabay that are perfect for the DR-70. For 13 bucks apiece, I get 8 hours+ recording per charge, they weigh 7.4 oz and are the size of a checkbook (only 10mm thick--double-sided taped right under the machine, you hardly know it's there). Rated at 20,000mAh/3.6V (most makes shy from quoting the actual voltage). I bought three, though I really only need the one. They're proved reliable and the best value yet. (I bought the latest Anker 12V unit just for my DR-680, but IMO, for 5V operation, there are so many to choose from that it's not necessary to limit yourself to the high-priced 'recommended' brands, if you're prepared to do your own experimentation. If anyone's interested, I'll post the fleabay link and some pics later on...
Dave