Thanks Rosie and OldBayan. This is what I had in mind, but have not tried it yet. I would think even the smaller Jackery ($250) would power a Roland for 3 hours. Anyone tried it? Even solar powered.
Lithium ion power pack for fr4x????
- Thread starter Tom
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Thanks Jerry! No, I admit I have not really tested the battery length. I imagine 99% of the time the batteries would work just fine, and having a spare set would cover things. I may try it later in the summer. But now it’s still “repertoire, repertoire, repertoire.” I have all but about 5 tunes (mostly) memorized, with less than 2 weeks to go. Plus make a new poster and business cards this year. A few more gigs would be ok.Tom, if the 4x is supposed to be able to last 5 hours of continuous playtime with the speakers ON or 9 hours with the speakers OFF when using rechargeable AA Ni-MH batteries, isn't that more than enough time for a day? If not, you could always carry a 2nd set of batteries or plug in.
Have you tested what your batteries last? Valuable info to know!
My Roland mains adapter is rated 37W, and using the Jackery calculator at https://uk.jackery.com/products/explorer-240-v2-portable-power-station , we get a mininum run time of 4.5 hours.
Very nice!!!! Claims 4 hours at 55w. If you bring along a solar panel, even for show, you get extra points and maybe a few more tips! With a bigger one you could even power your arranger and amp. Onboard speakers probably enough for me now though.
Ventura
Been here for ages!
while these modern portable "generators" that are powered
by Lithium Batteries instead of gas engines are handy for
many things, plugging any mains adapter in to get
12 volts DC is about the least efficient way to use one,
so you are only doing this for convenience sake.. if you
are using one to power other devices at the same time
in other words, the amount of energy you paid for to charge the
jackery is 90% wasted using it this way
i remind you the batteries at the core of the device natively
produce DC direct current electricity, so circuitry in another
section is then used to convert the DC into 120/240 volt AC,
THEN your mains adapter converts the AC back into DC
each of these processes uses up energy.. lots of energy,,
some of it is also wasted as heat .. all these steps to get to your
12 volts are about as anti-green as you can get (LoL)
if you want to use one of these devices as your power source,
purchase one that has a direct DC output port of regulated 12 volts,
which would mean an internal circuit similar to a simple buck
convertor that uses/wastes a minimal amount of energy
regulating DC to DC.. the model 1000 appears to have a 12
volt output port built in.. it should be researched further with the
maker to verify if this is well regulated or not
then all you need is a DC to DC cable preferably with one right
angle to plug into the bottom of the Roland
by Lithium Batteries instead of gas engines are handy for
many things, plugging any mains adapter in to get
12 volts DC is about the least efficient way to use one,
so you are only doing this for convenience sake.. if you
are using one to power other devices at the same time
in other words, the amount of energy you paid for to charge the
jackery is 90% wasted using it this way
i remind you the batteries at the core of the device natively
produce DC direct current electricity, so circuitry in another
section is then used to convert the DC into 120/240 volt AC,
THEN your mains adapter converts the AC back into DC
each of these processes uses up energy.. lots of energy,,
some of it is also wasted as heat .. all these steps to get to your
12 volts are about as anti-green as you can get (LoL)
if you want to use one of these devices as your power source,
purchase one that has a direct DC output port of regulated 12 volts,
which would mean an internal circuit similar to a simple buck
convertor that uses/wastes a minimal amount of energy
regulating DC to DC.. the model 1000 appears to have a 12
volt output port built in.. it should be researched further with the
maker to verify if this is well regulated or not
then all you need is a DC to DC cable preferably with one right
angle to plug into the bottom of the Roland
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That’s awesome!!!! Cool way to go.
Talent cell... with dual 12v and 5v outputs, high capacity 38400mAh lithium ion battery thats safe to use with LED lights, CCTV cameras, car DVRs and built-in protection against overcharge, over-discharge, over-voltage, over-current and short circuit.
Something like that would let you play for days without a recharge and keep your phones charged up at the same time... lol. Total price: $82US plus delivery (free with Amazon Prime).
Really good for those times that you wanted to set a new Guiness record for the longest time playing a 4X without a break... lol
Something like that would let you play for days without a recharge and keep your phones charged up at the same time... lol. Total price: $82US plus delivery (free with Amazon Prime).
Really good for those times that you wanted to set a new Guiness record for the longest time playing a 4X without a break... lol
Ventura
Been here for ages!
which current model Talent cell is regulated 12 volts ?
the one model they had offered was discontinued,, it was the
24 volt pack and the 12, 9, and 5 volt outputs guaranteed
all the models with 12 volt as the highest output are
only guaranteed the 9 and 5 volt outputs
so is there a new model you are referencing ?
could you point us to the technical specs for research ?
Roland's are NOT tolerant of excess voltage or low voltage..
you can't even risk putting alkaline cells in the internal battery holder
the one model they had offered was discontinued,, it was the
24 volt pack and the 12, 9, and 5 volt outputs guaranteed
all the models with 12 volt as the highest output are
only guaranteed the 9 and 5 volt outputs
so is there a new model you are referencing ?
could you point us to the technical specs for research ?
Roland's are NOT tolerant of excess voltage or low voltage..
you can't even risk putting alkaline cells in the internal battery holder
Don't know if it's a new model, it does have a regulated 12v output. If it can work on sensitive electronics like CCTV, mobile DVD players, playing on a 4X should be safe. The online PDF shows it doesn't go anywhere near any over or under voltage excesses.
Point you to the specs or research?
Email us: service@talentcell.com
Website: www.talentcell.com
You can ask for those there.
I do know it can power a Zoom F4 field recorder for 4+ days non-stop with 2 phantom powered mics because I have a US-based friend that has been doing exactly that for the last 6 months and his field recorder hasn't exploded or died. Now, I don't know if the 4X is more or less sensitive than a Zoom F4 (I have one of those myself), but it may be interesting to reach out to them and see.
EDIT: Googled and found the PDF. To those with electrical knowledge, they will be able to maybe see anything bad in there.
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Ventura
Been here for ages!
Technical details:
it will not cause a dangerous overvoltage condition, just a brownout once the
12 volts drops below the roland design threshold
- Model: PB120B1
- Capacity: 3.7V 38400mAh / 142.08Wh (=11.1V/ 12800mAh)
- Input: 12.6V/2A
- Output: 12V (voltage range is 12.6-9V) /6A Max. 5V/2.4A Max.
- Weight: About 730g
it will not cause a dangerous overvoltage condition, just a brownout once the
12 volts drops below the roland design threshold
Ventura
Been here for ages!
and again, this is exactly why for devices like the Roland
to achieve a constant 12 volt output you must use
four (4) or more lithium cells in series, then a regulator
or buck type circuit that controls the natural voltage sum
DOWN to 12 volts and holds it there with certainty
to achieve a constant 12 volt output you must use
four (4) or more lithium cells in series, then a regulator
or buck type circuit that controls the natural voltage sum
DOWN to 12 volts and holds it there with certainty
Ventura
Been here for ages!
afaik the cycle or most products from China is, a market
target is identified, a product or line of products is designed
to minimally meet the requirements at maximum profit
then several years worth of product is often produced,
as mass production yields the most margin.. the product is
pre-determined to carry a multitude of branding and cosmetic
difference to keep the USA market confused as usual, while
value is added by salting the internet "experts" and comparison
bots with mostly innuendo and long winded pages of not much
so finding a second gen Chinese product line that "learns" from
the market often takes years and years to bring wanted improvements
we seem to do a bit better with the few Asian sites that set up
for direct to consumer, like a battery-pack company, who have
flexibility, but still can save us money.. unfortunately these
connections are the most at risk with the current trade-war
like on Amazon you can still find a ton of product using the
Max spec battery packs for countless tools and such.. they
went from 18 volt NiMh to 20 Volt LiPo to 21 volt
(same guts, marketing pressure) to the current 24 volt
all in the same form factor over a period of 12 years or so..
you can still buy the 20 volt tools but by now the included
battery packs are dead/non-responsive.. the tools themselves
have maybe twice gotten upgraded motors (motors are pretty
tolerant of a few volts difference, unless it runs the motor so
fast/hot it burns up
it's all a game
Ventura
Been here for ages!
a brief add on for portable battery power for
outdoor gigging
FYi
i just found out that critter-cams / trail cams have spurred
quite a bit of new tech to support their extended use..
and many of these cameras happen to be 12 Volt based,
so their Solar Solutions are something we can use too..
i just picked up a 12 volt portable solar panel with a 10,000
MilliAmpHour Lithium battery pack built in that is designed
to plug into a field cam.. picked it up off of a WooT clearance..
need to do some experiments and testing, but it seems
to be tech any of us using these 12 volt powered Amps
can easily take advantage of right out of the box
on clearance the price was right.. in the stores they are
still expensive ( the cameras cost less.. LoL )
outdoor gigging
FYi
i just found out that critter-cams / trail cams have spurred
quite a bit of new tech to support their extended use..
and many of these cameras happen to be 12 Volt based,
so their Solar Solutions are something we can use too..
i just picked up a 12 volt portable solar panel with a 10,000
MilliAmpHour Lithium battery pack built in that is designed
to plug into a field cam.. picked it up off of a WooT clearance..
need to do some experiments and testing, but it seems
to be tech any of us using these 12 volt powered Amps
can easily take advantage of right out of the box
on clearance the price was right.. in the stores they are
still expensive ( the cameras cost less.. LoL )
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