Does it work without battery only with USB power?

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seeedstudio201411
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Joined: Sun Jan 03, 2016 9:05 pm

Does it work without battery only with USB power?

Post by seeedstudio201411 » Sat Jan 09, 2016 8:52 pm

I couldn't get the answer from the wiki. It looks like a battery is required for the RePhone to work. When I connect it to USB power without a battery the LED is red.
It looks like a battery is mandatory. Is this correct?

bakhdaulet
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Joined: Tue Dec 29, 2015 11:58 am

Re: Does it work without battery only with USB power?

Post by bakhdaulet » Sat Jan 09, 2016 10:57 pm

seeedstudio201411 wrote:I couldn't get the answer from the wiki. It looks like a battery is required for the RePhone to work. When I connect it to USB power without a battery the LED is red.
It looks like a battery is mandatory. Is this correct?
Yes, without battery you can't work.

robarago
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Joined: Wed Jan 27, 2016 6:06 pm

Re: Does it work without battery only with USB power?

Post by robarago » Wed Jan 27, 2016 7:12 pm

Hi,

So, can we purchase the battery in seeed shop?
What SKU is the battery for this module?

Thanks,
Roberto

robarago
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Pre-kindergarten
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Joined: Wed Jan 27, 2016 6:06 pm

Re: Does it work without battery only with USB power?

Post by robarago » Fri Jan 29, 2016 7:46 am

Hi,

I found that the module can (in fact it is right now in front of my eyes) work without battery.

All you have to do is power the module with a good 3.3V power source. I have an old ATX power supply giving more than 3A and it's working OK. Use pin 6 for GND and pin 3 for +3V and also connect me module to your PC (this is very important).

Now you can enjoy your module without a battery, even with a SIM connected seems to be working OK (i.e. I've been able to send SMSs).

Regards,
Roberto.

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