5s or 10s A123 setup for boat? - RC-Monster Forums

What's_nitro? · 07.02.2009, 10:17 PM

I'd go HV. Efficiency is much higher, therefore temps will be much lower and runtime will increase.

zeropointbug · 07.02.2009, 10:35 PM

I wouldn't say efficiency is 'much' higher, it is higher yes, but as an example, say if the 5s2p system was 89% efficiency, then the 10s system would be around 90.5 - 91% max efficiency. And you are right, every point higher the % efficiency is, turns up as a noticeable difference as far as heat in the wires a bit, and motors would run a touch cooler, and the runtime will increase, but not noticeably.

But ya, go for the HV setup of course. What are you using to charge 10s A123? Are you going to have them as 2 separate packs charging separately, then connect them in series for running?

gimpygolden · 07.02.2009, 10:41 PM

I would be charging with an iCharger 1010b (300watt)@10s.
The Batteries will assembled as 5s packs then use a serial adapter to both charge and run the boat.

zeropointbug · 10:57 PM

Right, one pack per each side of the boat?

I'm actually running 5s1p packs in my Villain EX with great results, I have to watch it though!.... when the packs dump, they dump FAST! I get into trouble at times!

gimpygolden · 07.02.2009, 11:03 PM

Yup 1 pack per side. The boat is an Aeromarine Titan 29
http://www.offshoreelectrics.com/pro...?prod=Aero-T29
I know what ya mean about fast "dumpage" a low charge pack dips quick in the water.
I have a Villain that I still run on 12 or 14s NiMh with upgraded props,its a fun boat that wife or friends can try out.

gimpygolden · 07.02.2009, 11:05 PM

I mentioned Medusa 70mm as motor choice but how would a Kb 45 compare,anygood for this setup?
A big difference in price.