I have this charger (Ripmax Constellation) In theory it should charge the iriver, in fact should be safer than the stock charger? I take it the stock charger is a always-on no shut off type, and the charge circuit is part of the battery?

I can enter 3.6v or 3.7v, enter in the battery capacity in iriver case 1300mah, and charge current anywhere between 100mah and 7A - say 1.5A
Fast Charge and Discharge
- 1-25 cell NiCad/NiMH Batteries
- 2-12v lead Acid Batteries
- 3.6-14.8v Lithium Ion/Lithium Polymer Batteries
• 100-700OmA Fast Charge Current (120Watt Maximum)
• 100-300OmA Discharge Current (20 Watt Maximum)
• User Definable Memories for
- Battery Pack Type, Number of Cells, Capacity
- Charge/Discharge Current
- Delta Peak sensitivity (NiCad/NiMH only)
• 2 Line LCD Display
• Delta Peak Detection/Zero Current Voltage Check
• Temperature detection voltage cutoff
(NiCad/NiMH only)
• 12v DC input voltage
• Audible Function Alarm
• Integral Cooling Fan