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  • Hey all, just changed over the backend after 15 years I figured time to give it a bit of an update, its probably gonna be a bit weird for most of you and i am sure there is a few bugs to work out but it should kinda work the same as before... hopefully :)

Red Batteries.... Power the Scarlet and Epic

Anthony Vu said:
You mentioned this in another thread, and I'm seriously thinking about getting this myself. Have you already bought this and if so, did it already arrive?
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I did buy mine about a week ago. It has not arrived yet.

I emailed them and they said they were waiting for parts I think. Hopefully it won't be much longer though.
 
Also a side note...
I spoke to someone who used the Epic in a slightly colder weather environment the other day and he mentioned he got extended battery life from the RV's due to the fan not having to run as much. He said they got an additional 20 minutes of power.
 
Tehben Dean said:
1st scarlet thread post #200
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Standby times though I imagine are pretty different from monitoring/recording times. If my laptop went off of standby times then it has 48 hours of battery life. ;). So I don't think scarlet's standby is that efficient but I'm hoping it can monitor and record for more than 15 in which case the brick approach is pretty tempting.
 
Gavin Greenwalt said:
If my laptop went off of standby times then it has 48 hours of battery life. ;).
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I don't think that it's a fair comparison, when you laptop/iMac/whatever goes into standby the monitor switches off as well as several components. If I understand correctly when Tonaci mentioned 36 minutes in standby for Scarlet, that meant the camera was on with a monitor attached and working, it just wasn't recording anything
 
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Mike Garrick said:
OK, I'm throwing in a left field product. My background is broadcast, some of the prices I have seen for v mount battery plates is insane, certainly where I come from. Here is another at the opposite end of the price spectrum...

http://www.ebay.com/itm/Wieldy-Sony-V-mount-battery-plate-12V-7-2V-5V-15mm-rig-/120816461437?pt=LH_DefaultDomain_0&hash=item1c2138e67d#ht_2968wt_1185

Any comments good or bad? I'm imagining all bad....;)
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I looked at that one. How would you plug in your Scarlet? There is no bypass output for DC straight from the battery, only regulated outputs. There is a very small chance you could use the regulated 12v output to power Scarlet, but most likely the 12v regulated can't handle more than maybe 1-2A and Scarlet needs at least 5-6A. Plus some precious power would be lost through the regulator. If there is a D-tap, though it doesnt mention it or show in pictures, it may also be limited with a 50W fuse which may not work with Scarlet. If you are comfortable, you may be able to add your own tap off the battery if you pull off the battery plate and go straight to the wires and add maybe an XLR or whatever other connection from the plate before the regulator circuits.

I ordered this one which seems to have a "15v": pass-through DC connection that is more like 11-16V in that it is unregulated from the battery. It doesn't really have these details on ebay but this same system is sold elsewhere with further details about what the 15V output actually is (unregulated).
http://www.ebay.com/itm/110765677587
 
Noah thank you for the reply. Yeh I should have pointed out that I have friends who can modify the plate to give me the correct voltage out for the price of a beer. However your suggestions looks even more promising again chinese but so what as long as it does the job. Thanks!
 
Anyone have a solid idea of how long a V-mount battery will power a Scarlet? I've heard 90minutes for an EPIC, would it be longer for the scarlet?
 
TonySegreto said:
Anyone have a solid idea of how long a V-mount battery will power a Scarlet? I've heard 90minutes for an EPIC, would it be longer for the scarlet?
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Depends on the capacity and characteristics of the particular V-mount battery as well as the accessories and power system you are using. If Tonaci's report of about 35min in standby from a 30Wh REDVOLT is any indication, Scarlet should pull about 50W in standby (i believe that was with side handle, 5" touchscreen, and ssd). That means a 140Wh RED BRICK should power Scarlet-X in a similar configuration for nearly 3hrs.
 
A rough rule of thumb would seem to be 1min per Wh capacity.
That might be a bit conservative, but it seems like a safe and easy way to estimate.

So roughly 30mins on a 30wh Redvolt.
140 mins on a 140wh Redbrick.
 
Noah Yuan-Vogel said:
Even that 12v 22ah (~264Wh) battery once you consider the efficiency of dc-ac inverter and then ac-dc adapter probably only gives you effectively 150wh and you still need to be tethered to a 20lb box.

If someone wanted to, they could buy one of these packs with very high a very high capacity for its weight: http://www.ebay.com/itm/1-Sanyo-18650-Li-ion-battery-packs-14-8V-12500mAh-4S5P-/320615990773 and a cheap dc 2.1mm to 4pin xlr cable and have a battery with 50% more capacity than a RED BRICK that weighs less and costs about 1/3 as much. Or you could get 2 (3 if you have longgg days) of them, put them in a bag/backpack or velcro them to your camera, put them in parallel with a $5 2.1mm DC splitter cable (ive done this before on my monitor), and run all day and never have to change batteries for <$300.

REDVOLT = $6.5/Wh 54Wh/lb
RED BRICK = $3.2/Wh 61Wh/lb
SLA battery belt = $1.5/Wh 13.2Wh/lb
Ebay Li-ion cells = $0.76/Wh 84Wh/lb
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Somebody suggested these batteries in another thread. What do you think? Would these get me going before I can get an APU plate and v-mounts?
 
That was me, but that was more just to give someone with a DIY spirit some ideas for the most cost and weight effective battery options. I would probably not recommend those to anyone who isn't comfortable fully testing the batteries and checking all wiring before plugging them into their brand new camera.
 
I have some DIY spirit in me... But theoretically those should work? What is the worst thing that could happen?
 
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