#74

Thanks so much for putting this together! I wasn’t aware of the battery monitor, charge controller, dc-dc converter, and adjustable power supply parts. Really amazing how affordable this stuff is getting.

1 Like
#76

I want to share some things I have learned the hard way so far (probably more to come). The VAC9010H battery monitor shows a 10-60V rating for the relay connection. I made the connections to a traditional relay and it worked fine for a few dozen on/off cycles then stopped working. After tracing the circuit back to the relay control transistor I found it was using a S9013 NPN BJT with the relay coil from Vbat to the collector. The S9013 has a Vce rating of only 25V! I’m guessing most people are using these in 12V systems and have not seen this failure.

I swapped in a BJT with a 60V Vce rating and everything worked fine. I limited the relay coil current to 100mA which doesn’t sound that bad until you realize that it’s 3.6W of wasted power anytime the output is on. I considered using a DC-DC converter to lower the voltage but that would add complexity and still burn 1.2W @ 12V. Finally, I gave up and switched to a solid state relay SSR with a 5 – 200VDC 40A rating and control port of 3 – 32V. I used a Zener to drop the control voltage by 14V. When on the SSR draws 15mA (0.54W) at 36V. If you go with an SSR make sure to get one designed to switch a DC voltage.

5 Likes
#77

This is how I ended up mounting the components.

Power_Panel
Power_Panel.jpg2000×2000 1.74 MB

29 Likes
#78

Hi guys,

Does any of you have experience with powering and recording your synths outdoors? How do you do that?

I would like to bring my 0 coast and an sq-1 to the river.

Thanks

#79

I use a Bioenno battery with my CL gear. I just needed to add a daisy chain barrel plug cable so I can power them all off of a single battery.

#80

I’ve been powering this little box with this battery for about 5 hours at a time, it has a DC jack on it, so no AC/DC adaptor needed.

1 Like
#81

wow, very clean work!

#83

Can that battery power a 7u case?

#84

We tested for a few minutes at the office, seemed to work ok, but the palette case is the only one we’re tried for extended periods of time (4-5 hours at a time)

#85

I’m planning a month long road trip and would like to bring a few of my instruments on the road with me to jam on while I’m layin in bed (back of my truck). Does anybody have any recommendations on power banks or some sort of DIY battery cache I can rig up for power?
I plan on powering a Digitakt, Digitone, keystep, MB33, MS-1 and a small mixer.

#86

I’ve powered 19” of modular, mixer, and PCM recorder off my Jackery when I’ve wanted to “get wild” with my Houseplant sets.

You will want to add up the mA of all the things you want to plug in and then make sure your battery has more than that (ideally a lot more but hopefully someone who knows more about electrical engineering will pipe in). Sometimes this is printed near the plug in thingie, sometimes you need the manual to find out.

#87

i recommend the “mobile modular” thread for some good insights…

john at pulplogic has been experimenting with some cool diy solar stuff:

3 Likes
#88

something like this thing would cover a lot of uses (and a lot of devices/instruments)

3 Likes
#89

This might seem really dumb but my band took a road trip/tour this past June through the south (Kentucky, Tennessee, Georgia, South Carolina, Florida) and we had rented a 15 passenger Ford Transit van. Our guitar/banjo player had this: https://www.blackanddecker.com/products/power-tools/automotive/roadside-assistance/500-watt-acdc-portable-power-station-jumpstarter-compressor/pprh5b

He kept it to essentially power his car since the electric in his old police-cruiser-auction ride was super unreliable. We ended up having that thing half charged save our asses more than once. Plus it had an air compressor that would actually inflate our super high PSI tires better than any gas station air pump out there. My buddy used it to power Bluetooth speakers/charge his phone every day to and from work (25 minute car ride) and charged it once a week.

Something I’d never think about buying but whoa did it come in handy.

1 Like
#90

The easiest way to find what your looking for is to search for a solar battery/generator with a pure sine inverter. The Goal Zero Yeti has a good reputation. I’ve camped with a Suaoki solar generator, a 12U modular, Beatstep Pro, & a separate battery powered speaker and not even bothered to pull out the solar panel I bought to keep battery topped off.

It’s a good idea to think in terms of how many hours you want to run your rig. Let’s say everything you listed pulls 50 watts. (It’s probably less.) If you buy a 150 watt hour battery battery, you should get about 3 hours of run time.

1 Like
#91

This thread was inspiring me. I just bought one of these batteries, charged it last night. I need to put a case together and head out!

#92

image
image3024×4032 2.51 MB

Charged the battery last night and put some modules in the case and it all seems to be working! I played around for an hour with headphones and used ~10% of the battery.

8 Likes
#93

I order Polyend Anywhere yesterday, can’t wait to test it out. Anyone using it? And what power bank you use along with? Tell me!

#95

Paging @fourhexagons

7 Likes
#96

Good question. I tested a few and found that most with ‘smart functions’ didn’t work well. That is, the type that dynamically adjust the output voltage seem to confuse Anywhere and will work intermittently. Eventually I landed on the slim Aukey’s that are linked in the description of the above video.

Here’s the Kit link:

https://kit.co/lightbath/anywhere-in-nature-renfrew

6 Likes