Cost not an Issue. Need to power HMI via Battery.

L

linyingyen

Member
Hi everyone,


I will be filming at a national forest in China.
The government policy strictly forbids any kind of engine inside the forest to preserve its air quality and its environment.
We will be filming at night, and will need about 1500 watts of power to run 2x575 and 1x200 HMI.

Besides the LibertyPak (which seems to be out of business), is their any other option for battery powered stations?
I imagine there would be lots of demand for something like this, but I just couldn't find any products that does this. Why?

Cost is not an issue.



Regards,


Lin
 
There are lots of inverters that will do the work. A full sine wave Freedom 3kw should work. The real issue will be packing enough batteries. What will be the duration of your lighting?

Grant
 
ggrantly said:
There are lots of inverters that will do the work. A full sine wave Freedom 3kw should work. The real issue will be packing enough batteries. What will be the duration of your lighting?

Grant
Click to expand...


We will be needing about 2000WH which includes the 10% efficiency lost on most inverters.
We made a 5000WH battery bank with a 3000W inverter for our last project.
It works, but was unprofessional looking, and is not that state of the art.

I was wondering if there are any companies that makes products like this who would be more sophisticated than to just throwing a bunch lead-acid together.


Thanks,


Lin
 
With the advent of larger automotive Li-Ion batteries, you might imagine there would be newer options over lead acid. As far as the packaging, a good fabricator could make the package attractive and add features like lift rings, handles, wheels, forklift pockets, control features, stowable recharge cables, ventilation, and of course outlets. Regardless of the packaging, the guts are pretty much the same. You did say, cost not an issue, but I would bet that once something like this was built, it might make a pretty nice rental. Not sure if anyone makes anything like this or if this would be a custom deal.

Grant
 
The NiMH 5000WH pack we made years ago was about 20 grand USD.
Now, I imagine there would be companies that does this. Apparently, I am quite wrong.
I guess we will have to make another one.
 
Barry_Green said:
There's things like this... http://www.amazon.com/Xantrex-802-1500-XPower-Portable-Powerpack/dp/B00005RHQQ/ref=pd_sim_sbs_sg_2

I don't know if they make bigger ones that would serve your purpose, but maybe it's a starting point for a search?
Click to expand...

Thanks mate, I checked that out a while ago. That is lead-acid battery with energy density about 21wh/kg.
A 5000wh system with that thing would be nearly 250kg.
NiHM we used years ago was about 66wh/kg, and Li-ion now a days is about 160wh/kg.
 
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