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 Post subject: sp404sx with a power bank?
PostPosted: Mon May 15, 2017 10:22 am 
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Joined: Sat May 28, 2016 11:35 pm
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yo!

i wonder if anyone here is using their sp404sx with a portable power bank? you know one of those that you can charge your cellphone with.

if so, what kind of cable are ya using? i just ordered a 9v cable but it doesn't seem to work. :/


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 Post subject: Re: sp404sx with a power bank?
PostPosted: Mon May 15, 2017 10:44 am 
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Joined: Fri Apr 21, 2017 1:31 pm
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Search "battery pack" on these forums and you'll find a bunch of info. You may need to reverse the polarity of the plug, as the SP is centre negative. Most generic 9v stuff is centre positive.


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 Post subject: Re: sp404sx with a power bank?
PostPosted: Mon May 15, 2017 1:17 pm 
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yeah i use my sp-202/303/404 with a powerbank quite often... check These threads:

http://sp-forums.com/viewtopic.php?f=1&t=23462&hilit=powerbank

http://sp-forums.com/viewtopic.php?f=3&t=23571&hilit=powerbank

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 Post subject: Re: sp404sx with a power bank?
PostPosted: Mon May 15, 2017 3:58 pm 
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Joined: Sat May 28, 2016 11:35 pm
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i bought one of these cables: http://m.ebay.com/itm/Adafruit-USB-to-2 ... Ciid%253A1

but it didn't work :/ is it wrong cable?


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 Post subject: Re: sp404sx with a power bank?
PostPosted: Mon May 15, 2017 8:12 pm 
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Joined: Fri Apr 21, 2017 1:31 pm
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iwannabedrake wrote:
i bought one of these cables: http://m.ebay.com/itm/Adafruit-USB-to-2 ... Ciid%253A1

but it didn't work :/ is it wrong cable?


yes it's the wrong cable. As I said above, you need to switch the polarity of the plug. The SP needs the centre (hole) of the power plug to be negative, and the outside to be positive. I think you can get an adapter to do this, or just cut the cable and reverse the wires at the plug end (some solder and heat shrink would be useful here). I haven't found a USB TO 9V adapter that is centre negative by default yet. Is the SP still working ok? Apparently attaching reverse polarity can damage the unit.


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 Post subject: Re: sp404sx with a power bank?
PostPosted: Tue May 16, 2017 10:29 am 
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Joined: Sat May 28, 2016 11:35 pm
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ngyagi wrote:
iwannabedrake wrote:
i bought one of these cables: http://m.ebay.com/itm/Adafruit-USB-to-2 ... Ciid%253A1

but it didn't work :/ is it wrong cable?


yes it's the wrong cable. As I said above, you need to switch the polarity of the plug. The SP needs the centre (hole) of the power plug to be negative, and the outside to be positive. I think you can get an adapter to do this, or just cut the cable and reverse the wires at the plug end (some solder and heat shrink would be useful here). I haven't found a USB TO 9V adapter that is centre negative by default yet. Is the SP still working ok? Apparently attaching reverse polarity can damage the unit.


oh, then i won't try using it. so there's no cable for this yet to the 404sx?

the sampler is working fine, no damage taken!


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 Post subject: Re: sp404sx with a power bank?
PostPosted: Tue May 16, 2017 2:10 pm 
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iwannabedrake wrote:

oh, then i won't try using it. so there's no cable for this yet to the 404sx?

the sampler is working fine, no damage taken!


did you read the threads i posted? i use a 9v to USB Cable with a powerbank all the time for SP-404SX/OG/303/202. the cable came from myvolts.com (now out of stock since i posted this on the Forums :lol: ) but they created a new cable called "Ripcord" Google it

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SP-202 | SP-303 | SP-404 | SP-404SX | ST-224 | MS-1 | SU10 | DR-202 | MPC 500 | MPC 2000 | AKAI S950 | AKAI S2800 | E-MU SP-12 Turbo

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 Post subject: Re: sp404sx with a power bank?
PostPosted: Sun Jul 23, 2017 10:42 am 
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Joined: Sun Jul 23, 2017 10:40 am
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Do you know which ones are the best power banks in India? To be true, even I wasn’t aware about them until I read reviews at Reviewstation.in so it is the easier way to know about the best powerbank that suits my pocket size.


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