[oldtamiyaphile]

Sorry Namara, but your testing is totally inaccurate.

The fast charge current for these cells is C3 or 150ma for a 50mah cell.

You should NEVER exceed 300mah. At 1 amp (!) the cells cook themselves. Because they get so hot, voltage drops and the peak charger senses this voltage drop and 'thinks' they're full, when in fact they have less than 50% of their capacity.

You realise that a 100% full 50mah cell, drained at 200mah will give you 15mins, don't you?

So your cell was half full.

The 160mah cell should last for 48 mins.

Again, your cell was less than half full.

I get well over one hour of runtime from a stock ZZ with a real peak charge.