Battery Power

Due to its weight loss, the 100D has no option but to use a smaller battery than the one as found within the 700D. The 100D's rechargeable Li-ion battery (LP-E12) is claimed by the manufacturer to be good enough for 380 shots on a full charge. This is equivalent to 60 shots less than the 700D, which accepts a larger LP-E8 rechargeable Li-ion battery pack. Canon EOS 100D / EOS 700D comparison

If you're looking for a DSLR with a strong battery stamina to save you forever searching for a mains socket to charge the battery back up to full power, the EOS 700D makes the better choice compared to the EOS 100D.