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MP3 Bedtime Stories ..... Battery supply??? Answered



Hi, new here so please bare with me.....long story cut short.

My Grandson is five years old and I thought it would be great, and get him to sleep quicker at night, if I could come up with some method of playing MP3 stories. I know, CD player, etc. nope, at five years old they want to take EVERYTHING apart. So no mains leads, CDs, etc.

What I came up with was buy a simple and cheap (£2.99) MP3 player off ebay, pair it with a small battery powered speaker (£5.99) and away we go.....doh!   Both items are amazing and just right for the job BUT both are battery powered (will go flat after he falls asleep and they are left on) and two, they both have on-off switches underneath which stops me mounting them on a surface.

Sorry this is going on so long....... What I thought of doing is getting a loooooooong lasting battery source (would 9v last a lot longer) and bringing ing it down to 1.5v (x2 one feed for each device). Then it wouldn't matter if they were left on overnight a few times -  or am I deluded.  Or better still, can anybody please advise?


 

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TN1946

3 years ago

Possible Solution: Thank you all for your help and suggestions.

What I cam up with was a solar battery charger. My thinking being that at five year old my grandson IS going to fall asleep whilst listening to his battery driven mp3 player and battery driven speaker. But if they are powered by a solar panel it wouldn't matter if they went flat as long as he, or his Mum, put the panel (still connected to mp3 player ans speaker) on his window sill to recharge all day ready for bedtime.

Problem: I have just done an experiment and when the components go flat and start running off the solar panel charger there is a 'motor boating' sound on the audio. No doubt this can be smoothed out by the addition of a condenser or resistor, any body able to advise, please. Thanks.

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Downunder35m

3 years ago

You could also use a normal FM radio and a car FM transmitter.
The radio can be mains powered (and most alarm clocks offer a sleep timer for the radio), the transmitter by a 12V power adapter.

These transmitters are also available as an MP3 player and most offer a headphone jack for audio input.
Dirt cheap on Ebay too.

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TN1946Downunder35m

Reply 3 years ago

Hi, thanks for replying, I am not using a radio, sure how your idea could be used with a tony mpg player?

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Downunder35mTN1946

Reply 3 years ago

I don't know your player but I had several of the MP3 radio transmitter before I updated my car sterao to something that has USB support and a SD card slot.
Better than trying to find a way to get your player modified for external power.

And with often less than bucks maybe even cheaper than any mod.

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Kiteman

3 years ago

Um... use rechargeable batteries?

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TN1946Kiteman

Reply 3 years ago

Hi, each device, speaker and MP3 player have rechargeable batteries, but that relies on a very busy mum recharging them each day, I am looking for an alternative.

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KitemanTN1946

Reply 3 years ago

Ah, I see.

There are several instructables about wireless charging. Maybe build a wireless charger into the bedside table, so the devices are always topped up?