RED batteries technology...

[M. Bergeron]

It would be nice if RED were using this technology for their batteries (maybe they do!?):

http://www.a123systems.com/

- Li Ion energy with very high power (100C pulse discharge)
- 5 minute re-charge with high energy
- Inherently safe and green chemistry
- Extremely long life at low and high rates (100%-80% over 1000 cycles)
- Widest temperature range (-30C to 70C)
- Mechanically robust laser welded design
- Lowest impedance growth and excellent calendar life

They were used for this recently:
http://www.gizmag.com/go/7085/

[Priyesh P.]

I posted that link a half year ago - sadly, no response from this forum or the heads at Red...

[dalemccready]

I've been trying to get people interested in these cells for our Steadicam, they sound like a great replacement for current batteries.

[Michael Hastings]

These are a little more geared to the large scale needed for electric vehicles. Lithium Ion technology is and is being pretty well developed for smaller portable applications like our industry. That is probably why you haven't gotten a response from the RED team.


It would be nice if RED were using this technology for their batteries (maybe they do!?):

http://www.a123systems.com/

- Li Ion energy with very high power (100C pulse discharge)
- 5 minute re-charge with high energy
- Inherently safe and green chemistry
- Extremely long life at low and high rates (100%-80% over 1000 cycles)
- Widest temperature range (-30C to 70C)
- Mechanically robust laser welded design
- Lowest impedance growth and excellent calendar life

They were used for this recently:
http://www.gizmag.com/go/7085/

[Priyesh P.]

These are a little more geared to the large scale needed for electric vehicles. Lithium Ion technology is and is being pretty well developed for smaller portable applications like our industry. That is probably why you haven't gotten a response from the RED team.

Sorry to correct you, but these cells are also already used in power drills and RC-models, that means applications other than vehicles. The individual cells itself are compact and (!) even lighter than conventional Li-cells, more than perfect for power hungry camera-setups and ( as Dale noted ) for steadicam. Quick charging in less than 5 minutes at
90 % of capacity means we could recharge one cells while a digital magazine is offloaded.

[Stuart English]

We evaluated several battery technologies for the best balance between availability, price, weight, volume and sustainable power output over time. Our conclusion was that Lithium Ion is the most appropriate choice at this time.

[createra]

http://en.wikipedia.org/wiki/Lithium_Ion.

Quote: batteries can easily rupture, ignite, or explode when exposed to high temperatures, or direct sunlight.

And from Valence website (http://www.valence.com/SafetyVideo.asp). See the video.

Quote: These tests serve as real life illustrations of what could happen if a lithium-ion battery were crushed, punctured, dropped or if there were a manufacturing defect.

Are the risks exaggerated?

[Michael Hastings]

Sorry, I'm having trouble typing and removing my foot from my mouth at the same time. I spoke too soon! Should have looked more closely.

Looks like it is a Green technology and I think given its progressive philosophy RED will be a Green company as well, so maybe this will be something for the future.





Sorry to correct you, but these cells are also already used in power drills and RC-models, that means applications other than vehicles. The individual cells itself are compact and (!) even lighter than conventional Li-cells, more than perfect for power hungry camera-setups and ( as Dale noted ) for steadicam. Quick charging in less than 5 minutes at
90 % of capacity means we could recharge one cells while a digital magazine is offloaded.

[Priyesh P.]

That´s another key selling point ( being "green" tech ). Ok, Stuart notes that maybe the price was an issue, but since a123technology seems to gear up their production quantity prices are likely to fall.

I had digged theirs specs much more intesive some time ago, I was interested if those batteries, combined with the latest led-emitters could replace HMI-units in the range up to 2 KW. I mean kind of generator-free ( and noise / weight reduced ) operation.

Priyesh

[Priyesh P.]

http://en.wikipedia.org/wiki/Lithium_Ion.

Quote: batteries can easily rupture, ignite, or explode when exposed to high temperatures, or direct sunlight.

And from Valence website (http://www.valence.com/SafetyVideo.asp). See the video.

Quote: These tests serve as real life illustrations of what could happen if a lithium-ion battery were crushed, punctured, dropped or if there were a manufacturing defect.

Are the risks exaggerated?

unfortunately not, taking the endless line of recalls into account from sony etc. I heard of several heavy burns through explosion / combustion of those tiny batteries of cell phones - to stay on topic : "a123" claims that their technology is free of these hazards. Ok, the ultimate, long-term field-test has to prove it.