Today in Russia Lenovo unveiled the Vibe C2 Power, an enhanced version of the Vibe C2. It's a bit odd that the Chinese company is already launching a slightly better iteration of a model that only got official last month. Anyway, the new Vibe C2 Power comes with a spacious 3,500 mAh battery, an improvement of 750 mAh compared to the vanilla C2's 2,750 mAh cell. That's where the name "Power" comes in. You also get double the RAM amount compared to the Vibe C2, now at 2GB. Otherwise, though, the new phone's specs are just as unimpressive as those of the original Vibe C2 have been ever...
Source: http://www.gsmarena.com/lenovo_vibe_c2_power_ups_the_battery_capacity_to_3500_mah-news-19801.php