Maxoak k2 50000mah

[Sgdevilzz]

Saw this behemoth battery pack from a review and I cannot help but to ask people here weather it can be used on LED lightings or even act as an external battery source for cameras.

https://www.youtube.com/watch?v=DZx4Zj77liM

What do you guys think?


https://www.amazon.co.uk/MAXOAK-500...ost/dp/B00YP823NA?ie=UTF8&ref_=cm_rdp_product

 

[kandinsky]

As long as the output from the batt matches the required input from your device, don't see why not. Really quite the beast at 1.2kg.

 

[Sgdevilzz]

From this picture it indicates that you can choose either 20v or 12v

So If i need to step down to 8.4v or 7.4v, do I need a converter?

 

[kandinsky]

From this picture it indicates that you can choose either 20v or 12v

So If i need to step down to 8.4v or 7.4v, do I need a converter?

I'm not very familiar, but I think you would even need to DIY the converter to the powerbank yourself, I could be wrong but as far as I know, I've not seen off the shelf converters for this purpose.

If not versed in electronics, would be better to buy a powerbank with the voltage outputs you need, or one with adjustable voltages.

E.g. Something like this has adjustable voltage to 8.5 and 7.5, which would be close enough for your usage - http://www.ebay.com/itm/Camera-1865...50-LP-E6-LP-E17-EN-EL14-EN-EL15-/302024165617

Of course, the capacity is not as high as the one above. If you threw in 5 x 3400mah 18650 batteries, that would get you 17000mah capacity with you voltages you need.

 

[Bamboopictures]

18650 casings are really cheap on Aliexpress.
http://www.aliexpress.com/item/USB-..._1&btsid=171416e5-fa88-487d-bda6-16e05a331ead

 

[Sgdevilzz]

Thanks for your inputs! Quite troublesome to convert the output voltages.


Sent from my SM-N910G using Tapatalk

 

[DXNMedia]

I always custom my own battery packs. Largely depends on which cameras or devices you're running. Most cameras or LED lights that uses V-mount batteries can run between 12v-15v, so a 12vdc output powerbank is definitely usable. However, when it comes to 7.4v-8.4v devices, you'll need a step up/down regulator. Panasonic cameras in particular, their voltage tolerance level is very tight....meaning if the amp draw is high and when your battery is not good enough, there'll be a higher than usual voltage drop and the Panny cams would warn 'This Battery is not usable', and shut down the cam.

Most china powerbanks have overrated capacity readings, and even with that kind of specs, it's usually rated for a single cell output. eg. 3000mah at 3.7v. If it's 10 cells inside, it'll claim 30000mah, but still rated at 3.7v. So once you step up to 7.4v or even 12v, your true capacity ratings at that operating voltage drops significantly.

If you search aliexpress, they also have those USB 5v to LP-E6 battery couplers. it steps up from a USB 5v to 8.4v simulating a AC-DC adaptor, so you can technically use USB powerbanks with 5v 2-3ah output and plug them into your canon cameras like an external power supply.

Just did one mod with the Canon XC10.
https://scontent-sit4-1.xx.fbcdn.ne...=34da58d828557995e9ddc2f31d3beba6&oe=585BD48D
https://scontent-sit4-1.xx.fbcdn.ne...=540a91a585800d4c6c213dab2a2a709b&oe=581EEEB2

Even my previous BMD Pocket Cine Cam was rigged with AA batts.
https://scontent-sit4-1.xx.fbcdn.ne...=866abf44872e100ab8f7ac208e1666e3&oe=582E4C16

My LCD monitors are rigged with 18650 flashlight cells.
https://scontent-sit4-1.xx.fbcdn.ne...=093f2e1dc5eb759b468329df66450385&oe=582938B5

Litepanel SOLA ENG lamp with a custom DIY batt pack, spot-welded together.
https://scontent-sit4-1.xx.fbcdn.ne...=2e818e431eea22222e0e8464364522eb&oe=582579BC

 

[Bamboopictures]

Cool mods! Loved the Sola idea.
Thanks for posting the pics!

 

[DXNMedia]

Cool mods! Loved the Sola idea.
Thanks for posting the pics!

Thanks. Only problem with these mods is that as much as they're functional & useful, finding ways to mount them is a pain. I'd still stick to original batts if I can help it, but sometimes gotta work around the limitations of the built-in cam's battery. Like the BMPCC & XC10, the only way to increase operating endurance is external batt pack... For the rest, I'd still prefer the good old Vmount. And not to mention, 3rd party batts like the F970, VBG6 & CGA-D54 types are getting very very unreliable. Originals' prices are sky-high.... I just had to throw away a 3rd party F970 batt that's less than 3 months old, used less than 5 occasions.