Batteries are a very important and over looked part of filming. Not having enough batteries or easy access to them can slow down filming by hours. Pulling your rig apart to get to the battery compartment can also be very frustrating and time consuming.

If you plan to film projects lasting a day or more, it’s a good idea to have at least 4 to 6 camera batteries with you. It’s also a good idea to have a few extra chargers. Or better yet and double charger like this.

Adding a battery grip to your DSLR Rig makes it much easier to replace batteries and allows the camera to run longer between battery change outs. I personally like the Zeikos battery grips because they are built well and cost half the price of the Canon brand grip.

But if you’re looking for something cheaper, then their are several models out there for under $40 Just remember that they aren’t made as well as some of the higher priced models and brake a little easier.

New generic batteries are chipped, which means they will work the way canon brand batteries will in your 7d. I’ve had good luck with the Opteka LP-E6 2400mAh brand batteries, at a 3rd the price these batteries do very well.

The other nice thing about adding a battery grip to something like the t2i is that it makes it easier to hold. I have large hands and with out a battery grip on the t2i I can only get 2 fingers on it before i run out of space.

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