Mix-Pre 3/6 USB Batteries (what works and what doesn't)

[morst]

New Anker power unit and cable worked to power 4 phantom channels.  Tried new Anker cable on old Ravpower did not work.  Tried 2 old generic USB-C cables on new Anker and it worked.  So the Ravpower unit I have does not have enough power for 4 phantom channels.

I have a RAVPower RP-PB043 (20100mAh/74.3Wh - Type-C Output DC 5V 3A Max). It will only provide phantom power for 2 mics.

Very interesting that this RAVpower won't power four Kashmir preamps.
It appears from the marketing blurb that this does not have "PD" listed but it's doing a lot of power management stuff on the other ports.
Our use case in this avocation is often different from the expected, and here I would say the lesson appears that "PD" packs are going to be more likely to work reliably than those with other whistles and bells.


Personally my Anker Powercore+20100 purchased may 2018 is still holding tough.
Takes ten hours to charge via USB-C and then will run the machine for about ten hours with all preamps hot.
Takes incredibly long to charge if you don't have a USB-C charger though!

RAVPower RP-PB043 Overview
The 20,100mAh Turbo Portable Battery Pack from RAVPower features three USB ports for charging: one iSmart 3.0 USB Type-A port, one USB Type-A port with Qualcomm Quick Charge 3.0 technology, and a USB Type-C port. With Quick Charge 3.0, you'll be able to charge your compatible devices faster and spend less time waiting around. Its USB Type-C output is powerful enough to charge a MacBook while simultaneously transferring data to your mobile phone via the iSmart 3.0 USB port, which offers smart voltage and current distribution, and data transfer for extra functionality. The Turbo battery pack also has built-in overcharge, high-temperature, and short-circuit protection.

[checht]

Personally my Anker Powercore+20100 purchased may 2018 is still holding tough.
Takes ten hours to charge via USB-C and then will run the machine for about ten hours with all preamps hot.
Takes incredibly long to charge if you don't have a USB-C charger though!

My Anker batt of similar vintage seems to have lost 3-5% of capacity.
What wattage is your charger? Picked up a RAV 90w Ga charger for macbook pro, and halved charge time for my batt.

[morst]

My Anker batt of similar vintage seems to have lost 3-5% of capacity.
What wattage is your charger? Picked up a RAV 90w Ga charger for macbook pro, and halved charge time for my batt.

I just recently got a large multi-port charging "brick" which has USB-C so I will tell you about that, but the charger I usually use for the portable pack is a single USB-A + single USB-C made by RavPower, the "RavPower 24W 2-Port Wall charger with USB-C" model number RP-PC027.


The larger one has a new job, charging an android phone via spare drive enclosure cables, it's an Anker PowerPort I PD with 1 PD and 4 PIQ. Sorry about the filth but it was cheap on ebay! Model A-2056

[Dirtybiz]

What does the PD stand for?

I am OK with a slightly larger unit.

I bought this, comes with a cable and charger so I assume it should be OK.

https://www.amazon.com/gp/product/B07XRJZXKY/ref=ppx_od_dt_b_asin_title_s00?ie=UTF8&psc=1

Have you used this power bank with success?  I'm looking to buy the same one.

DB

[DavidPuddy]

What does the PD stand for?

I am OK with a slightly larger unit.

I bought this, comes with a cable and charger so I assume it should be OK.

https://www.amazon.com/gp/product/B07XRJZXKY/ref=ppx_od_dt_b_asin_title_s00?ie=UTF8&psc=1

Have you used this power bank with success?  I'm looking to buy the same one.

DB

I have been using two of the smaller 20k mah packs with no issues. They last all day running 4 channels on 48v.

[Gordon]

A reminder to check your batteries from time to time!  I had one of my "trusty" Hypergear 12000 mAh die on me after about 4 hours.  The AA backup died as well.  Only missed half the encore and was able to splice from another taper.

When I first got the battery several years ago I got 9 hours or so as I recall.  I tested all my batteries again and most lost an hour or so from my original test.  The one Hypergear though lost 5!  I blame my daughter charging her phone with it!  She now has her own battery packs!

[jbell]

Not a bad idea to carry a backup just in case! 

A reminder to check your batteries from time to time!  I had one of my "trusty" Hypergear 12000 mAh die on me after about 4 hours.  The AA backup died as well.  Only missed half the encore and was able to splice from another taper.

When I first got the battery several years ago I got 9 hours or so as I recall.  I tested all my batteries again and most lost an hour or so from my original test.  The one Hypergear though lost 5!  I blame my daughter charging her phone with it!  She now has her own battery packs!

[Gordon]

I actually thought about that night but have never had an issue.  I'm taking the big ass anker to Athens tomorrow!

[checht]

Super important, major point of failure.
I test annually.
4 year old anker 10k and Mophie 10k seem to lose about 5 min/year. I don't use 'em for anything else though.
Run w 4 AA in the sled, even if just to give me time to swap usbc batts.

[achalsey]

Not a battery, but would a macbook USB-C power cord provide safe power?  It says it outputs 20V, 15V, 9V, or 5V.

[justme]

Not a battery, but would a macbook USB-C power cord provide safe power?  It says it outputs 20V, 15V, 9V, or 5V.

Yes it will.
The MP6 and Apple charger will negotiate over power delivery and come to a suitable voltage and current.

[fobstl]

Does anyone have a current reco for high capacity USB-C battery for powering of the MixPre 6?

I managed to leave my Anker 26,800mAh Powerbank in a hotel room and was not able to recover it. The one I was using worked great, but it seems that it is no longer available. I want to have at least the 26,800mAh for long shows and piece of mind. Let me know what the current way to go is.

Thanks!