Dimensions of Battery Bays

[MacII]

Hello,

Does anyone know the exact dimensions of the battery bay? I'm trying to figure out what size batteries will fit.

Thanks,

DM

[Revo Racer 16]

The biggest battery that will fit is a 3s 5000mah

[UE_Test_Pilot]

I measured them at RCX this morning, they are 165mm L x 51mm W x 30mm H, they said 7 nimh cells or a 5000 mah 3 cell or 8000 mah 2 cell will fit. One on each side

[MacII]

Thanks for those dimensions, VERY helpful.

[Marv829]

Are those the total dimensions with the door closed or the dimensions of the chassis cavity only? It looks like the door bulges out slightly for more space.

[MacII]

One more question, where do the wires go? Can one use a battery like the TrakPower batteries with the 4mm plugs on the top?

[JOCKS_RETURN]

I measured them at RCX this morning, they are 165mm L x 51mm W x 30mm H, they said 7 nimh cells or a 5000 mah 3 cell or 8000 mah 2 cell will fit. One on each side

thats alot of power either way more than most folks willing to pay for....

[JAKETHESNAKE28]

True, but it is an E-Revo! Of corse it is going to cost more!

[Rusty XL-5]

I measured them at RCX this morning, they are 165mm L x 51mm W x 30mm H, they said 7 nimh cells or a 5000 mah 3 cell or 8000 mah 2 cell will fit. One on each side

Is that the dimensions with the battery spacers (the black things inside of the trays) out of them? If so, that totally sucks, I was really wanting to use my 3c 8000's I'm about to get in them.

[JAKETHESNAKE28]

Your 3s 8000 mah lipos won't fit rusty XL, sorry dude. Atleast they are making one! The biggest 3s lipo that can fit in the E is 5000mah lipos.

[Rusty XL-5]

Dang that TOTALLY sucks! I was looking very forward to getting that chassis! I was planning to mostly run 4cell but since I'm getting a few 3cells for my rusty, why not use 'em in the E-Revo? lol (I'll be getting the MMM)

[JAKETHESNAKE28]

I will be getting the mmm too! If you haven't already got them I would stick with the 3s 5000mah. That way it fits in your battery tray for both your revo and your rustler.

[Rusty XL-5]

I will be getting the mmm too! If you haven't already got them I would stick with the 3s 5000mah. That way it fits in your battery tray for both your revo and your rustler.

Yeah, I know. But I was wanting that extra run time. I was planning on getting 2 3cell 8000's and 4 2cell 8000's (enough for 2 cycles in both of my trucks or 4.5 hours of runtime in the rustler! ) I guess I could just get 3 cell 5000's and still get the 2 cell 8000's. Argh....all the choices and confusion of power set ups!

[JAKETHESNAKE28]

It will totally be worth it when you have the mmm in there and are running 6s! WOW! You will have one major grin on your face that is for sure!

[Rusty XL-5]

It will totally be worth it when you have the mmm in there and are running 6s! WOW! You will have one major grin on your face that is for sure!

I know! I was getting the 3cells for the rusty and was like, "heck, I'll have 2 3cells why not get the MMM! LOL " I'll get the 4 2cells for when I want to drive something thats not rocket powered (plus the runtime)

[JAKETHESNAKE28]

While your at it do you want to get me a few lipos? The runtime should be nice with the 2s lipos. But the speed will be insane with the 3s lipos!

[Rusty XL-5]

While your at it do you want to get me a few lipos? The runtime should be nice with the 2s lipos. But the speed will be insane with the 3s lipos!

Lol, I'm about to get the hyperion charger (6061i) then the 3cell 5000's, after I got those I was planning on getting the est of them. I'm getting the TrueRC lipos so getting them will only cost me a leg. If I got Max Amps, it would cost me 2 arms, 2 legs, and all my money! Besides, both types of batts are nearly identical with the specs.

[JAKETHESNAKE28]

You are heading in the same route as me! I will get the hyperion charger like you, then some true rc batteries. They are fairly cheap so I won't cry. Same batteries as maxamps so they are good enough for me.

[Rusty XL-5]

I am actually quite close to getting the charger...in 2 weeks or less! Then, lipos. First the 3 cell 5000's, then the 2 cell 8000's. By then, the MMM selling rage will be over and I will be able to get one.

BTW: I wonder how fast a rusty will go with the MMM and 6s?

[Rusty XL-5]

Just got to thinking, we all know that we can push the MM voltage quite a bit (5s in fact), I wonder how much people can push the MMM's voltage (is 8s possible with it?)



Wooot! 800th post.

[Wakesurfer]

Get the Hyperion Duo so you can charge 2 packs at a time and balance all the cells in both packs to each other. You need a seperate power supply for it. Don't jump to fast though. I'm still waiting for the cable to do the firmware update on mine.

[stinkfist]

Lol, I'm about to get the hyperion charger (6061i) then the 3cell 5000's, after I got those I was planning on getting the est of them. I'm getting the TrueRC lipos so getting them will only cost me a leg. If I got Max Amps, it would cost me 2 arms, 2 legs, and all my money! Besides, both types of batts are nearly identical with the specs.

I recommend MaxAmps. I have both TrueRc & MaxAmp 2 cell 8000HV's with my E-Maxx's and the Maxamps run longer. Also I like the skin of the MaxAmps.

[e-maxx_uk]

2x maxamps 3s 5000's for me and the mmm

[Rusty XL-5]

Get the Hyperion Duo so you can charge 2 packs at a time and balance all the cells in both packs to each other. You need a seperate power supply for it. Don't jump to fast though. I'm still waiting for the cable to do the firmware update on mine.

I'd like to, but I'll just get the 6061i for now. I dont have that much money!

I recommend MaxAmps. I have both TrueRc & MaxAmp 2 cell 8000HV's with my E-Maxx's and the Maxamps run longer. Also I like the skin of the MaxAmps.

I decided to get the TrueRC lipos because I can get 2 of them for the price of a maxamps one (and STILL save money, actually, this allows you to buy more lipos wich results in more runtime! ). The price difference isn't enough for me to worry about loosing 5 min. of runtime or to have an attractive sticker.

[KS VXL]

That tray size is really discriminating against A123 packs...

You could only fit a 2cell > 6.6V 2300mAH in each side; and that would only barely fit with that height.

[KS VXL]

This is the charger I use: Cellpro 10s
It will charge 2 Lipos at 3C or 10 amps each cell, I can cahrge 2 packs A123 in 12 minutes!! I love it! And if you modify a computer power supply like I did, that part is free!

[ajb1205]

The biggest battery that will fit is a 3s 5000mah

Perfect! All I need is another 3s 5000 lipo (already have one for my Rusty VXL) and the MMM and let the fun begin.

[JATODRIVER93]

i have no idea about batteries and stuff, just gas, but would 2 3s 5000mahs be stronger than 2 2s 8000mahs cause if i know how the names work 3 series with each 5000mah, then thats 15000mah. 4 sereis with each 8000mah would be 32000mah? so wouldnt 2 2s 8000mah be stronger???

[strangersinspac]

i have no idea about batteries and stuff, just gas, but would 2 3s 5000mahs be stronger than 2 2s 8000mahs cause if i know how the names work 3 series with each 5000mah, then thats 15000mah. 4 sereis with each 8000mah would be 32000mah? so wouldnt 2 2s 8000mah be stronger???

There's two things you have to consider here... 1) maximum voltage and 2) maximum amp draw. 2s regardless of mah is going to give you 7.4 volts (but multiply that by two since we're all talking about running a pair of battery packs). Likewise 3s will give 11.1 volts, regardless of mah. The mah rating has a minor, but noticeable, effect on the overall power of the truck - but its generally a simple measure of runtime or "how big is the tank". For sheer power and topspeed, you really just need to look at volts. That's the simple, one paragraph answer.

[stumblin]

The thing that gets me is if traxxas provided 2mm more we could have fit 3s2p 6000mah lipo's into this bad boy which have a lot more amps do to being parallel packs. I ran into this problem on the emaxx as well, if you run w/ the dual motors in the emaxx you are limited to a 3s 5000mah lipos on the right side, and again we are limited to 3s 5k lipo's in the e-revo. People want run time!!! I think if there is one little thing I can complain about that is it. I think all these trucks should be designed to handle the 3s2p 8000mah packs at worst the 3s2p 6000mah packs, but that is just me.. your average joe maybe fine with what traxxas has provided and won't know the difference so I guess I shouldn't complain anyway...

[moderate]

For serious power and performace, as you all are asking for, don't concern yourselves with cost. Especially with brushless and lipos. Nitro is cheaper for the power. I love electric, but for comparable power and speed as nitro, you would need a HV motor (I would go with Hacker, Novac, Castle or Nue). You will also need a few 3S lipos of 3000-5000 to allow back-to-back runs, as you need about an hour to recharge. Consider your ESC'S. They need to be programable for Lipo cutoff voltage to prevent overdischarge. Does the stock ESC do this? If not, go with Castle Creations programable ESC. Be prepared to spend about $120 on each 3S 5000 mah battery and about $400-$500 on the brushless HV/ESC combo. So, $350 for the truck and $700 on batteries and the ESC/motor. Reality bites.

Mod.

[stumblin]

For serious power and performace, as you all are asking for, don't concern yourselves with cost. Especially with brushless and lipos. Nitro is cheaper for the power. I love electric, but for comparable power and speed as nitro, you would need a HV motor (I would go with Hacker, Novac, Castle or Nue). You will also need a few 3S lipos of 3000-5000 to allow back-to-back runs, as you need about an hour to recharge. Consider your ESC'S. They need to be programable for Lipo cutoff voltage to prevent overdischarge. Does the stock ESC do this? If not, go with Castle Creations programable ESC. Be prepared to spend about $120 on each 3S 5000 mah battery and about $400-$500 on the brushless HV/ESC combo. So, $350 for the truck and $700 on batteries and the ESC/motor. Reality bites.

Mod.

You must never fuel your nitro LOL, Lipo's get 300-500 cycles and you can easily beat up a nitro with a 4s config you don't need 6s. A 6s lipo & brushless config makes a nitro look like a walmart rc. So lets check the math, you can pick up 4 2s2p 6000mah lipos for 100ea (400) you will get 300+ cycles from them if treated properly and you get about 30minutes run time on the 6k packs pushing pretty hard so 300x.5 (1/2 hour)/400= less than .38c per hour cost (if they only go for 300 cycles) for the packs add a touch for charging and you are still WAY under the cost to run a nitro. Thats going with a maxamps or similar pack, they can be had cheaper. There is the Reality...

EDIT: sorry bad math, with two sets of packs you get a full hour of up time cutting the cost in 1/2 so it's more like 19c per hour.. sorry for the confusion!


PS Feigao motors will keep up w/ or beat nitro's at $80.00, if you want a great motor spend about 250 for a Neu and you will have the nitro guys crying to not have to be beat again by the electric guy.. not fair.. not fair..

PSPS pull the evx-2 and titans from new sell on ebay as new and recoup 150+ if you are smart.

[SS Pede]

That tray size is really discriminating against A123 packs...

You could only fit a 2cell > 6.6V 2300mAH in each side; and that would only barely fit with that height.

Well, going on raw dimensions alone the battery boxes are tantalizingly close to large enough for a 2s2p A123 pack. The length and height should work. But the 2s2p pack is 53 mm wide, and the tray is only 51 mm wide. We can only hope that the dimensions given above are slightly inaccurate! Or...maybe you could find a way to work around those 2 mm.

[mkrusedc]

Modifing those battery tray will take a little ingenuity but could be done. I'll have to wait to get one to see exactly what needs to be done but two 3s 5000 mAh batts will do just fine to start.

First thing to do is sell the Titans install my MMM and Neu and whaahooo.....

[HoovHartid]

The thing that gets me is if traxxas provided 2mm more we could have fit 3s2p 6000mah lipo's into this bad boy which have a lot more amps do to being parallel packs. I ran into this problem on the emaxx as well, if you run w/ the dual motors in the emaxx you are limited to a 3s 5000mah lipos on the right side, and again we are limited to 3s 5k lipo's in the e-revo. People want run time!!! I think if there is one little thing I can complain about that is it. I think all these trucks should be designed to handle the 3s2p 8000mah packs at worst the 3s2p 6000mah packs, but that is just me.. your average joe maybe fine with what traxxas has provided and won't know the difference so I guess I shouldn't complain anyway...

i posted this somewhere already but
I have been reading These posts for a long while and I think I might have come up with another battery option. Sorry, this will be a long post but it may be worth the read...so come along.

First, I have read that the Dimensions on the E-revo Batt compartments are 165 X 51 X 30

So First Battery Option was 2 8000HV 2s at 7.4volts each giving 14.8 total
-Which seems only decent in voltage but awesome in runtime.
($154.99X2=$309.98) (137 X 44 X 26)

Second Battery option was 2 5000HV 3s at 11.1volts each giving 22.2 total
-Which is ultra powerful but sacrifices runtime.
($142.99X2=$285.98) (138 X 45 X 26)

But...all of these are wired to double the Voltage.
I believe theres a way to wire the batteries doubling the Mah.
For Example....

Third Battery option is 2 3000HV 5s at 18.5 volts each giving 6000maH total
Puts the voltage at a sweet spot and still has decent runtime.
($137.99X2=$275.98) (137 X 44 X 27) And it costs less!

*note* all battery info from Maxamps.com--

well....what do ya think?

[DJANG0]

That's good logic Hoovhartid. You seem to be set on getting the lipos from MaxAmps, that's one thing for sure.

I'm thinking of doing the two 2 cell 6400mah wired in series for 14.8amps myself for that same reason. I feel I'll be getting the medium ground for good run times and the medium ground for voltage.

/bump this thread back to the main page because of UE_Test_Pilots measurements. Thanks d00d!

[KcKracker]

Man you really got me thinking with 2 5s 3000mah. That would be a powerful setup for a 1515/1y.

[Cain]

Based on this info:

165mm L x 51mm W x 30mm H

for the E-revo trays, the TrueRC 15C 8000mah pack should fit:

30mm x 45mm x 145mm


Now, here is my question, I have an Emaxx 3905, and I had the taller 28mm hold downs, and I did have to raise up the battery posts a bit to get it all to fit. So, does this mean that the 28mm tray was really 28mm from actual mounting area, or, just to the top of the hold down?

Anyone confirm with traxxas the battery tray dimensions for sure with the E-revo?

[Cain]

Just got off the phone with Traxxas rep. here is what he said for battery dimensions:

29mm x 156mm x 50mm maximum size

Based on this, the True RC lipo 15C may not fit, or, if it does, it will be a very tight fit or need some light dremel work.

[mkrusedc]

Does anyone know which brands of 3s batts will fit?