Maxamps Thread... - RC-Monster Forums

redshift · 11:09 PM

I had to chime in over there. You guys ever see a modular V8? Well I just invented one. I'm wondering if anyone has a spare minute to help me remove 3 cylinders? I'm thinking I want a V5 this week, mileage was killing me with the V8!

Arct1k · 07.28.2010, 05:39 AM

Quote:

Originally Posted by redshift

I had to chime in over there. You guys ever see a modular V8? Well I just invented one. I'm wondering if anyone has a spare minute to help me remove 3 cylinders? I'm thinking I want a V5 this week, mileage was killing me with the V8!

Actually that is almost a common setup - some of the v8's etc do actually shut down a bank for fuel efficiency...

I worry abut the safety aspect - Even in the video jason was about to plug things in the wrong way around a couple of times and had to correct himself.

I know this setup is only intended at advanced users whilst I do think that it is very innovative my safety concerns for Newbs would personally mean I not recommend it. I would rather get 2 x 2s and a 3s pack with traditional connections and be able to make : 2S, 3S, 4S, 5S, 7S.

Another thought - Chargers I don;t think will like the 20 amps 3,7v setup as they are going to have to do a lot of voltage reduction... vs a 5amp 14.8v charge

_paralyzed_ · 07.28.2010, 06:17 AM

Quote:

Originally Posted by Arct1k

Another thought - Chargers I don;t think will like the 20 amps 3,7v setup as they are going to have to do a lot of voltage reduction... vs a 5amp 14.8v charge

and only the best chargers will even do 20 amps. It's noobs that buy MA, not "experienced hobbyists". They will have dynamite chargers (like freezebyte wants) and not have the discipline to always assure correct polarity.

I can foresee esc and motor failures happening as people try "one more cell" and exceed specs.

I think this is bad for the lipo industry in general. Bad joojoo comrades.

Arct1k · 07.28.2010, 06:55 AM

Quote:

Originally Posted by _paralyzed_

and only the best chargers will even do 20 amps. It's noobs that buy MA, not "experienced hobbyists". They will have dynamite chargers (like freezebyte wants) and not have the discipline to always assure correct polarity.

Agree in that a lot of chargers are 5amp 50w - with a 3,7v cell you'd be only using maybe 20W of your 50W capacity charging at 5amp

Quote:

Originally Posted by _paralyzed_

I can foresee esc and motor failures happening as people try "one more cell" and exceed specs.

Don't agree as that can happen with any setup to a degree

Quote:

Originally Posted by _paralyzed_

I think this is bad for the lipo industry in general. Bad joojoo comrades.

Not into joojoo - i'm a touch more positive I actually LIKE that they are trying something new and thinking out of the box - There is a good idea in here; its just not quite right now IMHO.

_paralyzed_ · 07.28.2010, 07:04 AM

Quote:

Originally Posted by Arct1k

Not into joojoo - i'm a touch more positive I actually LIKE that they are trying something new and thinking out of the box - There is a good idea in here; its just not quite right now IMHO.

Ha! I'm not really into joojoo either. Like has been stated there is a lot of room for error, and I would just hate to see lipo accidents cause stricter regulations.

What do you guys think the shrinkwrap + hardcase on every cell will do to lipo temps? Negligible? It can't be good...

nitrostarter · 07.28.2010, 08:15 AM

I understand they are the first to sell individual Lipo cells to stack like this but people have be doing "multiple voltage" lipos since forever. Its called a multiple packs and plugging them in series. For example, look at Chris's post below...

Quote:

Originally Posted by Arct1k

I know this setup is only intended at advanced users whilst I do think that it is very innovative my safety concerns for Newbs would personally mean I not recommend it. I would rather get 2 x 2s and a 3s pack with traditional connections and be able to make : 2S, 3S, 4S, 5S, 7S.

Also, a guy said it best on rcgroups.com:

Quote:

Originally Posted by gulio

Please make sure that all cells are at the same SOD before using them together. This is the worst part of this I can see. It's not a new concept as I have seen something like this before (on most of my models). Many of us use powerpole connectors to series connect cells and packs at will.

Powerpoles are very user friendly for wanting to make series or parallel connections. This is just a spin-off of this.