My only need for more batts with the X is on long flights, watching movies. The Chinese charger and 2 batss for $10 looks inviting, especially since I would need it relatively infrequently. The portable charges are all in the $40-$60 range, which is a bit steep.
Also, how do these things impact the battery being charged? Any potential for damage?
Also, how do these things impact the battery being charged? Any potential for damage?