Charging via usb cable...possible in NH1?

[pinkun]

I've learned that there is only 1 model of hi md machine being able to charge via usb cable: MZ RH1. Is it possible for other hi md models to charge via usb port? If yes, should there be any trick or modification of the cable to do so.

Any suggestions are welcomed.

Thank you very much.

[Qwakrz]

The RH10 (and I think the RH910) can also charge from USB but its not as fast as the RH1 can charge. The manual states the RH10 cant fully charge from USB but I have seen mine stop charging but it took a full 18h connection via USB so it looks like its just a normal charge and not a fast charge.

As for the NH1, this is a first gen unit and none of them is designed to charge from USB. The NH1 is worse than the NH900 as it needs 6v to charge and not the usual 3v of most other Hi-MD's. I have tried a 5v power supply and it did charge the NH1 so modification of the custom USB lead could be possible but the results may not be what is expected and could damage the unit if it overcharges the battery due to the lower voltage not powering the charge cutoff circuits.

[pinkun]

Thank you Qwakrz. That was really great explanation. I don't know if any of my friends could do a modification of the usb cable, but will try to ask them about this.

Terribly sorry for my late reply.

[raintheory]

I thought all Hi-MD units prior to the RH1 stated in their manuals that they would receive a supplemental charge while connected to USB, but that this would not fully charge the unit, and for a full charge you needed to use the actual power adapter..