hello everyone, i'm new to this board, and to Hi-MD -- just recently bought a nz-mh900 after my old sharp one was stolen recently. i've been spending a couple of hours searching through here for battery topics, so i know from reading people's comments that the supplied battery is of a lower mah ( 900mah? ) and should be upgraded for optimal battery performance. but i couldn't find actual figures of other people's battery performance, and i was wondering if anyone could confirm if this is normal performance or not? i'm using the supplied battery. the performance so far: after purchasing this, i set up the charger and cradle, and left it to recharge overnight. this morning, while still connected to the charger, i transferred a couple of CDs using simple burner in Hi-SP format. i left the house with the battery on full. 2 hours of constant play later, my battery level is down to one bar. an hour later, i get a low battery message, and a little while afterwards the player shuts down... giving me about 3 1/2 hours in total, which seems incredibly low to me. if this is the normal performance, i'm sort of reluctant to get the 1400mah battery, which (doing simple math) should only give 5 hours total. how long do other people get from their batteries? does the Hi-SP vs Hi-LP rates affect the battery life? thanks! nick