$14 battery plate solution ONLY 7.4 volts, but possible!

Just add relatively cheap Sony F series batteries http://www.ebay.com/itm/SONY-F970-F550- ... 050wt_1413
and a cheap 15mm rail clamp to go on your rig:
http://www.ebay.com/itm/330691527479?ss ... 1439.l2649
Or: http://www.ebay.com/itm/Single-Mount-Ra ... 4d01b9abbf
And say goodbye to battery limitation!

(The battery plate does have it's own mounting solutions like Velcro, if you want to go super cheap and forgo the rail mount)

ok but what is the battery estimated life?

i'm working on something that is also relatively small but holds up 5-6 hours

As soon as I get the plate in, I'll do a test and let you know. The larger F960-F970 batteries should have fairly decent run times and they run around $20 each.

Those batteries are only 7.4 volts....the BMCC operates between 12 and 30 volts.

So unless I'm missing something about this adapter plate...these batteries shouldn't provide enough power to run a BMCC....

if you put them series you get double the voltage but amperage i'm not sure

Those batteries are only 7.4 volts....the BMCC operates between 12 and 30 volts.

So unless I'm missing something about this adapter plate...these batteries shouldn't provide enough power to run a BMCC....

Sorry! I thought I had checked that little detail! Running two in series is an interesting idea, but getting a bit compex. I think I got the idea that they were 12v because I have a ton of those batteries from buying a bunch of new led panels that uses them and the AC power supply that came with them outputs 12v. On the back of the lights it states that it takes 7.4 v to 14.8. Obviously, their running the batteries in series to get the 14.8 volts.

I'm thinking it would be very easy two put two of these plates together and then wire them up in series. I'll do a test, It's worth another $14 investment to find out if it will work.

I bit the bullet and bought a Switronix PB70 + Charger yesterday. The extra £340 GBP in cost weren't exactly anticipated, but I guess at least I'll have some piece of mind, should be a pretty solid solution.

Here maybe the best cheap solution yet: http://www.ebay.com/itm/2-pcs-New-8-AA- ... 430wt_1398

Load this up with lithium rechargeable AAs dress it up a bit and that should work. I'll get that too and by the end of my experimentation I could have bought the Switronix! (Just kidding, it should be much cheaper)

Here maybe the best cheap solution yet: http://www.ebay.com/itm/2-pcs-New-8-AA- ... 430wt_1398

I like this because you can easily get regular AA batteries anywhere. Unless your way out in the country, you'll never get stuck without power.

Sorry for jumping around, but I just found a battery plate that converts 7.4 volts to 12volts for $24+$5shipping in models for either Canon and Sony batteries http://cgi.ebay.com/ws/eBayISAPI.dll?Vi ... 1011021711

but still the running time question remains. i look into solution that will last 5 to 6 hours and can work in really lo temp. regular AA will die in a heartbeat on cold. and with AA you need them at least 10 hooked together.
Ok maybe if you put 16 of them as combined then you will get there and you would want to go with Eneloop or Apple Rechargable AA's but charging them is .... not so simple?

Of course you could do it but with cost of your time every case you have charge.

So cheap seems not to be cheap after all.

One has to consider usage flexibility also.

Benton are you aware of the Ikan solution? is what you're looking at the same price.

Benton are you aware of the Ikan solution? is what you're looking at the same price.

The Ikan solutions do not offer one for the Sony NP-F series batteries. Not that anyone has to go with those batteries, I just happen to have a bunch, so if I can find a solution that uses them that would be good for me. And realativly cheap for anyone else.

but still the running time question remains. i look into solution that will last 5 to 6 hours and can work in really lo temp. regular AA will die in a heartbeat on cold. and with AA you need them at least 10 hooked together.
Ok maybe if you put 16 of them as combined then you will get there and you would want to go with Eneloop or Apple Rechargable AA's but charging them is .... not so simple?

Of course you could do it but with cost of your time every case you have charge.

So cheap seems not to be cheap after all.

One has to consider usage flexibility also.

I was looking at the AA solution primarily as a backup as they are easily available and could come in handy if you run into any problems with your primary battery.

Just remember that adding batteries in series increases the voltage, but not the amperage. This means that if you hook up 8 AA batteries in series to get 12 volts, you'll still only have the available amperage of a single, NIMH AA battery, which is typically around 1500 mAh.

The Switronix battery is listed as 4800 mAh, and claims to nearly quadruple the running time. If we call it 5 hours of run time at 4800 mAh, and if all the math works out perfectly in real life, you'll get 1.5 hours of runtime using 8 AA batteries in series. Personally, I doubt you'll be able to pull that much current from the AA batteries that quickly, and you'll probably end up with a significantly shorter run time.

what is the amperage of the camera in your calculations?

i calculate as camera consumes 2500

The Sony NP-F960 has 6600mAh, so I should see a useable run time of close to three hours before it expires.

it's funny because I had the exact same idea yesterday... I have got one of these battery plates!
it came with my lilliput 7" monitor, which is 12V I believe... So I think it does a conversion to 12V. If this works it could be a great budget solution to power the camera. but I'm not sure about it, no camera to try it out.

this is what I build:

IMG_0020.jpg (790.91 KiB) Viewed 6719 times

it came with my lilliput 7" monitor, which is 12V I believe... So I think it does a conversion to 12V

Depending on the model of Liliput monitor, they can use 7.4 volts to 12v. Which is how they can use the Sony NP-F Series battery. Do the specs on your monitor say 12v input only? If it does, then the plate you have probably does convert voltage.

This was the only type of converter I was able to find that converted 7.4v to 12v: http://cgi.ebay.com/ws/eBayISAPI.dll?Vi ... 1011021711

well this is the info on my monitor so I assumed it was 12V. Any one got any info about it?

Sorry for jumping around, but I just found a battery plate that converts 7.4 volts to 12volts for $24+$5shipping in models for either Canon and Sony batteries http://cgi.ebay.com/ws/eBayISAPI.dll?Vi ... 1011021711

I got the $24 7.4V to 12v plate in to see if it would work. IT DOES NOT WORK!! My volt meter does read 12v but the amperage must be too low. Well it was worth a try! I am going to try two $14 plates wired in series for 14.8 volts and the amperage should remain the same as whatever Sony batteries your using. I will try the 6600mah, this should run the camera approx. three hours.

Benton are you aware of the Ikan solution? is what you're looking at the same price.

The Ikan solutions do not offer one for the Sony NP-F series batteries. Not that anyone has to go with those batteries, I just happen to have a bunch, so if I can find a solution that uses them that would be good for me. And relativity cheap for anyone else.

I dig the ikan solution as well. The NP-F battery types are also called L type i believe they do have it in stock they also have the adapter for Sony BPU batteries.
link http://ikancorp.com/productsearch.php?k=black+magic
once you find your plate please click the selection button.



i dont know about the Lilliput but the ikan adapter works because it effectively up-converts from 7.4V-12V

Hope it helps

Just add relatively cheap Sony F series batteries http://www.ebay.com/itm/SONY-F970-F550- ... 050wt_1413
and a cheap 15mm rail clamp to go on your rig:
http://www.ebay.com/itm/330691527479?ss ... 1439.l2649
Or: http://www.ebay.com/itm/Single-Mount-Ra ... 4d01b9abbf
And say goodbye to battery limitation!

(The battery plate does have it's own mounting solutions like Velcro, if you want to go super cheap and forgo the rail mount)

I found this 12v Super Super Rechargeable Lithium-ion Battery Energy Storage Pack on ebay, does anyone know if it works for our BMCC? http://www.ebay.com/itm/3800mAh-DC-12V- ... 7219436%26

I found this 12v Super Super Rechargeable Lithium-ion Battery Energy Storage Pack on ebay, does anyone know if it works for our BMCC? http://www.ebay.com/itm/3800mAh-DC-12V- ... 7219436%26[/quote]

All the battery plates that I listed here did not work out as I had hoped, Although running two Sony NP-F960s mounted in two standard plates wired in series for 14.8 volts should in theory work, but I have not tried this. I did purchase a cheap 12v 6800mAh battery similar to the one you listed and it works to a very limited degree. It works more like a battery supplement extending the run time by 30-45min. or so than a true power replacement that can run for hours (like probably the Switronix power packs can).

Use a "step-up" controller. But I recommend a battery warner to protect the batteries from deep discharge. Then it works with NP 970 batteries...

Do NOT try to run these 7,4V in series! You need exact cells to do that. In this battery's with more than one cell, they use only assorted cells. When the cells are little different, the uncharging will run unpropper and after some cycles one cell will break down!

Also don't power the camera with a voltage lower 12V! Inside is a step down controller to produce 5V and other voltages the electronic needs. 12V is the absolutely minimum for them to work. If you stress them with low voltage, the efficiency goes down. Means, you need more energy because a lot will go into heat. And if the controllers are not dimensioned for this additional energy, you will destroy your camera. To much voltage is bad but less isn't better

This "power pack" from ebay has an output rage from 10.x to 12.x volts. I wouldn't stress my new camera this way

I will build a solution with rc lipo packs in a custom case. 14.8V 2200mAh or more... With integrated step down controllers for 12V, 7.4V and 5V. But the bmcc becomes the 14.8V for the best efficiency. A "lipo alarm" switches the power off to prevent the battery from damage.

But the bmcc becomes the 14.8V for the best efficiency.

Franz, you´re german, aren´t you?

But the bmcc becomes the 14.8V for the best efficiency.

Franz, you´re german, aren´t you?

YES I'am

Why would you even risk your camera and play around with loose battery's and stuff??

V-Lock Mount battery's are well proven. You can wire the 14.4 V battery plate direct to your BMCC. Those plate's are easy to get on Ebay. And you don't need any conversion. Buy the cheap one's Not those with power converters inside. (those also have raw battery output and D-Tap)

And yes you need a Battery and charger then. But if those battery's can power my JVC cam for hours. It will do with the BMCC