Hi guys. Got a question. How long should the 1st charge be, for brand new 2500 mAh rechargable batteries ? I'm using a Maha C401FS. Fast charge ( 1000 mAh / hr ) or slow charge ( 300 mAh / hr ) ? And for how long ? Thanks. Btw, i'm using the Energizer batteries. Another set of new batteries is sanyo. Thanks in advance for any answer.