vmu with dead batteries resets maple w/ rumble. normal?

as the title says, if i try to use a rumble pack with a vmu with dead batteries (all mine are dead, those things die too quickly) the vmu will reset, resetting the port as a result and all input stops for a second

is this normal system behavior? or is my maple bus not performing as it should? if i have 2VMUs, keyboard, mouse, and if i add a dreameye, my maple bus goes nuts and VMUs continuously reset

surely the system should be able to power 8 VMUs, or at the very least a VMU and a rumble pack

 

I have observed that adding or removing a peripheral to the controller (such as a VMU) causes a reset due to a controller response timeout. I'm not sure if this resets the whole Maple bus, or just that controller's port.

 

yes every dc does this AFAIK

my post was asking if maple reset during normal use of one port was normal or not. a big name 1st party hardware developer wouldn't usually put out a peripheral that crashes the input bus

it sucks because a pair of VMU batteries lasts MAYBE a week, and if you don't use the standalone VMU game features it doesn't last too much longer

 

Does it really? I just checked my first VMU that I've had since 1999, and the stock battery that came with it is still alive.
I would always put the little plastic tab back into the back of the VMU when I wasn't using it to cut power to the battery. Despite this, I did use it for standalone games like the Homebrew Tetris, so it wasn't completely unused.

A week sounds like an exaggeration, the battery must've lasted longer than that under normal use.

 

Mine never seemed to last longer than a few weeks back when the DC was a current console. Now I don’t even bother to replace the VMU batteries since they die so quickly.

 

Maybe someone should mod a lithium rechargeable into the vmu with a little charge circuit.

 

No, it's not normal - it's probably a bad connection somewhere. Try reseating the power supply and the flex cable going to the controller PCB.

I did look into this once, and the biggest problem is that the rechargable coin cells like the MN2032 have about 1/4 of the capacity of the primary cell types. They are also designed to operate with very low discharge currents and suffer a drastic reduction in cycle life if discharged at higher rates.

 

yeah i've gotten like 12 batteries in bulk and the vmu would die after a week or two

so as far as the maple bus goes, is it normal for a dead vmu + rumble pack reset the bus every time the pack rumbles?

 

I agree with TriMesh- does sound like you have issues with the 5V line of the power supply. I’ve seen some odd behavior in the past from (probably broken) 3rd-party jump packs, but I can’t remember if I saw the same thing you’re describing.

 

None of my consoles do that, using either the original Sega rumble pack or a third party one, and using either the Sega VMU or a third-party memory card.

Although now I think about it, I have a vague memory of seeing that once before from a rumble pack with a bad motor in it that went short at one point in it's rotation.