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Author Topic: Mix-Pre 3/6 USB Batteries (what works and what doesn't)  (Read 44492 times)

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Offline justme

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DC to USB-C PD power option for MixPre 3/6
« Reply #210 on: August 18, 2019, 06:13:20 AM »
I wanted to explore some of the popular DC to USB-C PD power converters that have begun to appeared this year.

It's a DC voltage to to USB-C PD compliant converter. There are many input connector option for them but I opted for the DC 5.5/2.5 model.
https://www.aliexpress.com/item/32946474518.html
It's recommended input voltage is 20V. And a max input of 22 volt.
Thats a bit annoying as packs of 4 li-ion cells might not be enough and 6 cells are too much. So DIY packs of 5 cells would be needed.

Anyway, I powered it from an external power pack using 4x18650 Li-ion pack with 14,8V output I can charge my Pixel 2 and a lot of other USB-C devices without a problem.
I then hooked it up to my MixPre-6 over USB-C and it booted perfectly. But shortly after warned me that the power source was not enough and wanted to switch to 4xAA-pack.
So I connected the converter to 20V DC power instead and that gave it enough headroom to supply the MixPre-6 with enough USB-C PD to make it happy.

The plastic case comes appart easy using the nails and the internals reveals a Chinese USB-C PD chip:

Manufacturer: Injoinic Corp
Chip: SOC IC--IP6527
http://www.sz-dowell.com/static/upload/ueditor/file/20181218/1545115664843095471.pdf

The chip specs states:
Input operating voltage range: 8.2V to 32V
VIN VIN=12V, VOUT=5V/3A, board end conversion efficiency 96.5%

But this did not appeared to be liked by the MixPre anyway. Or due to the way of the implementation of the chip in the converter.
I'll do some more tests but not using the Mixer as a guinea pig. :)

Offline Hypnocracy

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Re: Mix-Pre 3/6 USB Batteries (what works and what doesn't)
« Reply #211 on: November 07, 2019, 01:56:29 PM »
Just joined the MixPre 6 gang...a lot of the recommended smaller batteries are no longer available except used-referbs...

What are the current recommendations? I liked the size - capacity of the HyperGear 12,000mah
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Offline checht

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Re: Mix-Pre 3/6 USB Batteries (what works and what doesn't)
« Reply #212 on: November 07, 2019, 02:06:15 PM »
Just joined the MixPre 6 gang...a lot of the recommended smaller batteries are no longer available except used-referbs...

What are the current recommendations? I liked the size - capacity of the HyperGear 12,000mah


I really like Anker's PowerCore 10,000 PD. Super small and light for its capacity.
https://www.anker.com/products/variant/powercore-10000-pd/A1235011
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Offline Gordon

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Re: Mix-Pre 3/6 USB Batteries (what works and what doesn't)
« Reply #213 on: November 07, 2019, 02:07:27 PM »
I liked the size - capacity of the HyperGear 12,000mah

still available on ebay and amazon just way overpriced!  glad I bought 2 when I did....
Microtech Gefell M20 or M21 > Nbob actives > Naiant PFA > Sound Devices MixPre-6 II

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Offline Hypnocracy

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Re: Mix-Pre 3/6 USB Batteries (what works and what doesn't)
« Reply #214 on: November 07, 2019, 02:12:05 PM »
Just joined the MixPre 6 gang...a lot of the recommended smaller batteries are no longer available except used-referbs...

What are the current recommendations? I liked the size - capacity of the HyperGear 12,000mah


I really like Anker's PowerCore 10,000 PD. Super small and light for its capacity.
https://www.anker.com/products/variant/powercore-10000-pd/A1235011

Two on Amazon....both used!

Thanks Gordon...
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Offline So Many Roads

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Re: Mix-Pre 3/6 USB Batteries (what works and what doesn't)
« Reply #215 on: November 07, 2019, 02:13:11 PM »
https://www.monoprice.com/product?p_id=15123&gclid=EAIaIQobChMIksPVtObY5QIVLR-tBh3OEAQ4EAQYASABEgJQcvD_BwE  Edit: click on the 10000mAh USB-C size to see the correct battery.

I use the monoprice usb c battery pack; similar to the hypergear. 10k mAh, will run the Mix Pre 6 for 3 hours or so, powering one set of mics plus a board feed. I have two and can hot swap them if one runs low.
« Last Edit: November 08, 2019, 11:41:20 AM by So Many Roads »

Offline prepschoolalumniblues

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Re: Mix-Pre 3/6 USB Batteries (what works and what doesn't)
« Reply #216 on: November 07, 2019, 02:13:46 PM »
Just joined the MixPre 6 gang...a lot of the recommended smaller batteries are no longer available except used-referbs...

What are the current recommendations? I liked the size - capacity of the HyperGear 12,000mah


I really like Anker's PowerCore 10,000 PD. Super small and light for its capacity.
https://www.anker.com/products/variant/powercore-10000-pd/A1235011

I have this PowerCore but initially had a major problem with charging it — I used an Anker USB-C charger and cord and it wouldn’t charge the PowerCore at all in a period spanning over 24 hours. I got a different charger and it worked — totally charged over an afternoon. Surprising given that you would think an all-Anker chain would be fine (and I love their products) but some online research revealed that this was a problem others were noticing. So keep an eye out for that!
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Offline hoppedup

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Re: Mix-Pre 3/6 USB Batteries (what works and what doesn't)
« Reply #217 on: November 08, 2019, 09:37:51 AM »
Just joined the MixPre 6 gang...a lot of the recommended smaller batteries are no longer available except used-referbs...

What are the current recommendations? I liked the size - capacity of the HyperGear 12,000mah

I used this on the very unit you have: https://www.amazon.com/Anker-PowerCore-Ultra-High-Capacity-Portable/dp/B014ZO46LK/ref=sr_1_1?keywords=anker+powercore+usb-c+20100&qid=1573223803&sr=8-1
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Offline Ronmac

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Re: Mix-Pre 3/6 USB Batteries (what works and what doesn't)
« Reply #218 on: November 08, 2019, 05:30:53 PM »
^^^^+1 on this.

I have one of these for my 6ii and the USB-C connection is perfect for full power operation.

 

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