4s M1 A123 cells on Mamba Max 5700?

[brijar]

The Villain EX is NOT waterproof. It has foam floatation, so it won't sink, but it can get water in it. It has a waterproof box for the electronics (not batteries), but water can still get in if you flip it and it just sits there for a while. Here is what happens when you flip it.

The Titans can handle the voltage, the higher turn ones in your new one will handle it better probably, but their life will be shorter than if you just ran the recommended voltage.
I read somewhere that EVX's have different voltage limitations from ESC to ESC, and if you put too much voltage to it, it simply won't drive the motors. Then you can drop a cell or two and it works just fine. I heard of someone on the Traxxas board, rupert I think, who had one that could do up to 18 cells:036:. I haven't tested my EVX's voltage limit, so I don't know if it will do more than 7 cells. My packs would usually read about 9 volts when fully charged, so mine should be good for up to 18 volts, I hope.

[zeropointbug]

Well I better take it easy then...

Yeah, last year I had an on road 1/6 scale car, dual EVX's, dual dewalt 820 motors, I ran 6s A123, although, straight off the charger it would sometimes cut power, once the motors turned over for a few seconds the voltage came down enough for it to run fine.... and did it ever! :017: Prossibly 1000 watts from two brushed motors, they were very durable.

[zeropointbug]

Silly me, correction... 5s2p A123 is ~180 grams lighter than 12 cells NiMH.

So if 5s2p fits inside the boat, I might just go that route, I will see.

[brijar]

How hot do the M1 cells get? I just got back from the lake, running my Villain on 14 GP3300s, and those cells get way too hot to touch after a hard run. Of course, the batteries aren't exactly spring chickens, being about a year old (the 19th will be their birthday:cool:), and being run a lot in my used-to-be-brushless Maxx, the batteries didn't have an easy life, so they could have developed some resistance that will make them get hotter than they should.
I just don't want the M1 cells to melt a hole in my boat and sink the whole thing:036:. I read about them a bit in the newest issue of Popular Science, and it tells how they work and everything, also saying they can withstand heat up to like 400* without being damaged, so durability doesn't seem to be an issue.

Thanx,
Brijar!!!