- Posts: 670
- Joined: Thu Apr 28, 2016 3:50 am
Hey all,
I have a nice vmount setup for my camera/monitor, but sometimes I want to just use the camera on a tripod for a couple hours. There seem to be some nice options here on the forums for using Canon or other batteries, including the large BMPCC grip option.
I have posted a while back on another thread about this, but thought i'd share again as I see various threads about powering the camera, etc.. and possibly a lot of new people here with the 4K and now 6K cameras being more readily available.
So, the hack is fairly simple. I bought this: https://www.amazon.com/gp/product/B06XS ... UTF8&psc=1
It is a pack of 4 18650 battery holders. Each is wired in series. Unlike my previous one which was NOT wired and had crappy clips, these have springs so are a bit nicer to get batteries in and out of. The better thing is it is already wired up in series.. but one concern would be are the leads between the pos and neg "thick enough" to handle more power draw. The clips that are connected are thicker than the wires I use on my barrel adapters, so I assumed they would be. In testing.. it worked great, so I don't believe for this particular use.. there is any concern with the power draw of the camera overheating the metal leads between the pos and neg posts. I felt them after over an hour of use and they were not warm at all, so again I don't think they are a problem. I say this because SOME options come with very thin leads that CAN heat up and melt/break and cause the battery pack to stop working.
NOW, having said that these units DO come with VERY thin pos/neg wires attached. These I fear could be a problem with too much power draw. What I did is I just ripped those off.. they are very weak. I then soldered quickly my barrel plug (female end with leads) to the pos/neg posts. The only issue I ran in to is the neg lead attaches to one with a coil on it.. and it was hard to heat up the post fast enough to solder the barrel plug neg lead before the cheap plastic started melting around the coil.. so in one of my packs the coil got loose a little bit and bent down so that I have to kind of hold it up when I put the battery in so it touches the battery plate. It isn't a big deal, and my second one I did worked fine. The pos lead was easy to solder in place.
I realize this isn't for everyone.. I wanted a simple cheap way to provide a couple hours of juice to my camera. These are not "pretty" by any means. I put some electrical tape around the soldering area to "seal it up".. not sure that is necessary but.. why not.
You can add some sort of velcro strap to the back of these, either with hot glue or some other method. The thing here is.. I can quickly replace 18650 batteries in the packs, and use really good 18650 cells. I bought 4 NCR/Panasonic 18650 cells (3400mah) for $28 shipped. The pack along with the battery in the camera gives me around 3 hours of use.
I built 4 packs.. with batteries.. for $130 (including barrel plugs). I also bought a barrel plug to DC input (https://www.bhphotovideo.com/c/product/ ... mm_dc.html).
So, I can hot swap each pack while the battery in the camera keeps things running in between quick hot swaps (love that BM has this working like this!!). Basically the 4 packs give me an all day recording capability for the camera.
I haven't yet looked at using these to power my monitor.. but I know it will work as well.
Anyway.. just wanted to share. It is NOT pro looking by any means, there are much nicer pro looking options out there.. but they do cost more than what it cost me to put 4 of these together with batteries. I suspect with a little bit of ingenuity one could make these look pretty good, hidden, etc and nobody would know.. or complain.
I have a nice vmount setup for my camera/monitor, but sometimes I want to just use the camera on a tripod for a couple hours. There seem to be some nice options here on the forums for using Canon or other batteries, including the large BMPCC grip option.
I have posted a while back on another thread about this, but thought i'd share again as I see various threads about powering the camera, etc.. and possibly a lot of new people here with the 4K and now 6K cameras being more readily available.
So, the hack is fairly simple. I bought this: https://www.amazon.com/gp/product/B06XS ... UTF8&psc=1
It is a pack of 4 18650 battery holders. Each is wired in series. Unlike my previous one which was NOT wired and had crappy clips, these have springs so are a bit nicer to get batteries in and out of. The better thing is it is already wired up in series.. but one concern would be are the leads between the pos and neg "thick enough" to handle more power draw. The clips that are connected are thicker than the wires I use on my barrel adapters, so I assumed they would be. In testing.. it worked great, so I don't believe for this particular use.. there is any concern with the power draw of the camera overheating the metal leads between the pos and neg posts. I felt them after over an hour of use and they were not warm at all, so again I don't think they are a problem. I say this because SOME options come with very thin leads that CAN heat up and melt/break and cause the battery pack to stop working.
NOW, having said that these units DO come with VERY thin pos/neg wires attached. These I fear could be a problem with too much power draw. What I did is I just ripped those off.. they are very weak. I then soldered quickly my barrel plug (female end with leads) to the pos/neg posts. The only issue I ran in to is the neg lead attaches to one with a coil on it.. and it was hard to heat up the post fast enough to solder the barrel plug neg lead before the cheap plastic started melting around the coil.. so in one of my packs the coil got loose a little bit and bent down so that I have to kind of hold it up when I put the battery in so it touches the battery plate. It isn't a big deal, and my second one I did worked fine. The pos lead was easy to solder in place.
I realize this isn't for everyone.. I wanted a simple cheap way to provide a couple hours of juice to my camera. These are not "pretty" by any means. I put some electrical tape around the soldering area to "seal it up".. not sure that is necessary but.. why not.
You can add some sort of velcro strap to the back of these, either with hot glue or some other method. The thing here is.. I can quickly replace 18650 batteries in the packs, and use really good 18650 cells. I bought 4 NCR/Panasonic 18650 cells (3400mah) for $28 shipped. The pack along with the battery in the camera gives me around 3 hours of use.
I built 4 packs.. with batteries.. for $130 (including barrel plugs). I also bought a barrel plug to DC input (https://www.bhphotovideo.com/c/product/ ... mm_dc.html).
So, I can hot swap each pack while the battery in the camera keeps things running in between quick hot swaps (love that BM has this working like this!!). Basically the 4 packs give me an all day recording capability for the camera.
I haven't yet looked at using these to power my monitor.. but I know it will work as well.
Anyway.. just wanted to share. It is NOT pro looking by any means, there are much nicer pro looking options out there.. but they do cost more than what it cost me to put 4 of these together with batteries. I suspect with a little bit of ingenuity one could make these look pretty good, hidden, etc and nobody would know.. or complain.
Custom DIY AMD1950x 16-core/32-thread, liquid cooled, 64GB 3600Mhz RAM, 950Pro-512GB NVMe os/apps, 2x500GB 850 Evo RAID 0 SATA3, Zotac 1070 8GB video, USB 3.1Gen2 RAID0 2x4TB, 2x2TB Crucial MX500 SSD SATA3.