That's the answer to a different question. Similarly I use Eneloops.

However the question is how to charge faster. My Eneloops take 8+ hours i think to recharge. You can get faster charging batteries like the 15-20 min ones but the downside is that they discharge over time and they have a shorter life span due to the heat generated by the faster charging time. They still work reasonably well especially if you are using them daily while touring.