Run Universal without battery? (i.e. on A/C Power only)

[downloadtest82]

Hi there!

Does anyone know of a way to operate the Universal solely on A/C power when there is no battery inserted?

I often use my universal as a WLAN media player in the kitchen. It just sits there for hours playing music and I would like to remove the battery from it during this time to extend overall battery life.

Unfortunately the device does not turn on when there is no battery inserted.

[kecido]

This should be fairly easy, if I understood well, you don't want to let the battery in the universal (even if normally the battery chargers apply a tickle current charge when the batteries are already charged to mantain it fully charged), so you just need to connect your power supply directly to the uni's battery contacts -BEWARE the power supply MUST be 3.7V REGULATED / 1A minimum current-.
Personally, I do not like to change the way the objects are, so I would try to keep it like this in this case, this means, no extra holes in my PDA, no extra connectors, etc. so you need a pair of mini alligators clips or miniclips to connect your unit to the power supply, be sure to verify the correct polarity, it's clearly written in the battery's contacts.

Alternatively, there should be a way of doing this by using the uni's own battery charger through it's own mini USB connector, it's necessary to cheat the PDA and let him "think" he's got the battery inserted, this should be fairly easy to do also, but I'm out of my work, so I could provide a complete solution like this until late april.

bye

[DJ Palmis]

Unfortunately the device does not turn on when there is no battery inserted.

Why don't you use an old battery?

I use this way in this particolar circumstances!

[downloadtest82]

Why don't you use an old battery?
That's what I used to do, unfortunately the old battery I have is so worn down by now it won't even support the boot process any more, and the A/C power regulator kicks in only after basic I/O drivers are loaded on the device.
Since the old battery dies before this process completes I can't use that any more.

I don't believe the Universal's "battery detection circuits" are all that complex, in most modern electronic devices they can be fooled by simply bridging some of the connectors in the battery bay.

I don't know if this is true for this device also, however. So I was wondering if anyone else ever tried before I toast my PDA...

[DJ Palmis]

Since the old battery dies before this process completes I can't use that any more.

Oh.. I understand.. Sorry..
Well: be careful if you try to solve in other way..