battery noise

[markuss]

hi, i own a yamaha piaggero NP-V60.

i'm getting this loud electrical noise when the batteries die, here is a recording of the this sound with the keyboard volume set to half way (with some notes to give you a sense of relative volume):

http://www.markstockton.com/misc/batterynoise.mp3

i've tried using both 1.5V alkaline and 1.2V Ni-MH batteries and they both do it.

as you can imagine, if this happens during a performance people think my keyboard is broken and i have to explain that its just the batteries running out.

yamaha says this is normal.

has anyone else who owns a 'piaggero' keyboard experienced this problem?

 

[The Y_man]

It probably is normal.... similar to pulling the plug out of a TV.

How often do you run out? You might need to go to Lithium batteries?

The Y-man

 

[markuss]

yeah, the batteries do last for ~3 hours, so its not that much of a problem.

but this problem could be easily fixed with a relay, a transistor and a couple of resistors, basically 30p in components, and they should have already done this considering how long they've been making keyboards.

 

[The Y_man]

Maybe get one of these and make cranking it up part of your show

http://www.k-tor.com/hand-crank-generator/?gclid=COzh_YuHgbACFdA2pAodF3SwFA

The Y-man

 

[The Y_man]

Maybe get one of these and make cranking it up part of your show

http://www.k-tor.com/hand-crank-generator/?gclid=COzh_YuHgbACFdA2pAodF3SwFA

The Y-man

Wait - better still, have one of htese under your keyboard and pedal as you play!

http://www.k-tor.com/pedal-powered-generator/

The Y-man

 

[DickR]

Using rechargeble 1.2 volt batteries in keyboards is a bad idea to begin with.
Just not enough power. You sure it is the batteries and not a bad potentiometer/volumeknob? Does it make loud 'cracklng' noises when you change volume? Only long distance guessing of course.

 

[markuss]

Using rechargeble 1.2 volt batteries in keyboards is a bad idea to begin with.
Just not enough power. You sure it is the batteries and not a bad potentiometer/volumeknob? Does it make loud 'cracklng' noises when you change volume? Only long distance guessing of course.

no but i would like to know if this is normal for all piaggero keyboards, or if it is just a defect with mine.

need someone with the same keyboard to see this thread

 

[rhodeye]

sorry I haven't used batteries yet.Don't plan on it either but if I do I will try to let you know what happens.Maybe I should get some to make sure I have no problem with it working

 

[markuss]

thanks for the reply, i found that the noise is less intense when using alkaline batteries over NiMH.

offtopic note: i'm using this "alkaline recharger" with regular Duracells and so far it's been working really well, they only charge 10 times but last longer, i may even stop using NiMH rechargables as i can pick up a pack of 4 Duracells for £1, something to consider if your buying batteries:

http://www.ebay.co.uk/itm/150653081988?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1497.l2649