Our initial look at the iPad Air 2 reveals that Apple is bundling a 10W power adapter with its newest iPad model – a step back down from the 12W unit that has been included with the last two generations of full-sized iPad models. While a 10W power adapter would theoretically require longer charging times, iFixit’s recent teardown revealed that the iPad Air 2 contains a slightly smaller battery than its predecessor, suggesting a possible justification…