Battery Grip Comparison?

i comparing these 2 battery grips canon t3. 1 better? why? also, if had/has of them, how did them.

1. bower (1)
2. meike lp-e10 (2)

open new ideas...
also, looking vertical shooting, how bower connect dslr?

thanks, everyone!

 

the t3 isn't made battery grips. how t3i?

 

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