Bomber Batteries

[calcagno45]

If you look at the instruction for the kit, page 3 shows max pack dimension is 149mm X 35mm X 52mm.

http://docs.axialracing.com/instruct..._4WD_-_Kit.pdf

[NitroDarwin]

Originally Posted by calcagno45

If you look at the instruction for the kit, page 3 shows max pack dimension is 149mm X 35mm X 52mm.

http://docs.axialracing.com/instruct..._4WD_-_Kit.pdf

Can someone confirm that lipo that tall fits?

[BroncoAZ]

Originally Posted by Mopar2Ya

I run the SMC 4300mah 40C 3s hardcase.
Factory Spec 11.1V 4300mAh 40C Traxxas

I need to buy a couple new batteries, how are these holding up? They look like the right size and capacity for by Bomber or Yeti.

[Rjohn929]

Originally Posted by BroncoAZ

I need to buy a couple new batteries, how are these holding up? They look like the right size and capacity for by Bomber or Yeti.

Excellent battery. I have a few of them and use them in all my stuff.

[BroncoAZ]

Originally Posted by Rjohn929

Excellent battery. I have a few of them and use them in all my stuff.

Cool. I ordered three of them for my Yeti and Bomber. They should be 4 oz lighter than my current Yeti batteries, and a couple oz lighter than the current Bomber battery.

[OkinawaCrawler]

I use this battery. It fits really well and is cheap.

GForce Elite Series 30C 4000mAh 3S 11.1V LiPO (T-Connector) | Value Hobby

[supra_89t]

Originally Posted by OkinawaCrawler

I use this battery. It fits really well and is cheap.

GForce Elite Series 30C 4000mAh 3S 11.1V LiPO (T-Connector) | Value Hobby

They tout a 150-recharge life cycle for this battery. This seems really short, doesn't it? How long do batteries normally last?

[*Old*]

Originally Posted by NitroDarwin

Can someone confirm that lipo that tall fits?

For me, these are exact fit dimensions.
Dimensions: 138 x 42 x 33mm (5.4" x 1.7" x 1.3")

you don't want the height (42mm) to be any bigger, or will it will be hard to clamp the hood down.

[nd4spdbh]

FYI,

I run this pack

https://hobbyking.com/en_us/turnigy-...lipo-pack.html

with size specs of 146 x 50 x 25mm

You can definitely go no bigger on the length n depth (146mm / 50mm demensions) But it does fit.

Could always go thicker too.

[NitroDarwin]

How does axial say one size and everyone says that won't fit?

[calcagno45]

Originally Posted by NitroDarwin

How does axial say one size and everyone says that won't fit?

Look at the post above, just a couple mm smaller on each and the pack fits. The SMC pack is 47mm wide and fits as well.

I think the space is tight and so getting some of the larger packs to fit is relative to the persons opinion of too big or not. It's also about the battery leads and getting those to tuck in as well.

[*Old*]

Originally Posted by calcagno45

Look at the post above, just a couple mm smaller on each and the pack fits. The SMC pack is 47mm wide and fits as well.

I think the space is tight and so getting some of the larger packs to fit is relative to the persons opinion of too big or not. It's also about the battery leads and getting those to tuck in as well.

For the length, it definitely has a lot to do with the battery lead. My leads sit in the battery compartment, which takes up a fair amount of space. I can't get it to push down into the truck for some reason, so I leave it in there. makes the battery fit nice and snug. for the thickness, you could go slightly bigger than what I posted. Same with height, but like I said, you'll be forcing the hood to close.

[OkinawaCrawler]

Originally Posted by supra_89t

They tout a 150-recharge life cycle for this battery. This seems really short, doesn't it? How long do batteries normally last?

I don't know what normal is, but I've never came close to doing 150 cycles on any of my batteries. I run once a week or so.

[Taurus84]

I'm planning my Bomber build and thinking about using my old batteries. From what i've read in this thread it should fit but i'm not sure because of the battery leads. What do you think guys?

Also i want to use these batteries with Mamba X + 3800kv CC motor. Do you think that 20C discharge rate will be enough?

I have also a 2nd option - 3S battery and a slower motor - 2280kv. But in this case i will need to spend another 50-100€ on new batteries.

So what do you guys think? I read somewhere "Volt up, gear down" but right now that option is just more expensive for me and i would like to use my batteries if they fit of course.

[ScoJac]

I have 2 of these.
Hyperion G5 50Cmax 3S 5000mAh
ON SALE RIGHT NOW $36 originally $50

This is the absolute maximum that can fit and still properly close the hood.



Specifications:

Capacity: 5000mah
Voltage: 3S, 11.1v nominal
Discharge Rate: 50Cmax (50C burst, 25~30C continuous)
Charge Rate: 6C maximum, 5C recommended
Weight: 373 g
Dimensions: 135 x 42 x 29mm
Power Connector: No
Balance Connector: JST-XH

[ScoJac]

Originally Posted by Taurus84

I'm planning my Bomber build and thinking about using my old batteries. From what i've read in this thread it should fit but i'm not sure because of the battery leads. What do you think guys?

Also i want to use these batteries with Mamba X + 3800kv CC motor. Do you think that 20C discharge rate will be enough?

I have also a 2nd option - 3S battery and a slower motor - 2280kv. But in this case i will need to spend another 50-100€ on new batteries.

So what do you guys think? I read somewhere "Volt up, gear down" but right now that option is just more expensive for me and i would like to use my batteries if they fit of course.

According to the size specs in the link you provided above (135 x 45 x 22) it might be a tad too high, 3mm does not sound like much, but....
if you can get the hood and brace closed you'll have no problems with the wires exiting from the top edge.

I'd try it first, all manufactures sizes can differ from what is actually posted +/- a couple mm though ?

As for your question on the 20c rating.... crawling should be no problem but if you are going be bashing and running it balls out, I'd be looking at a minimum of a 45c.

If you are considering going 3s, check out the link I posted above.

[Jboucher]

I use the venom 3s 3300mah 35C hardcase. They fit perfectly on the tray.

There is also the SMC 4500mah that fits with more C and capacity.

Sent from my Nexus 6 using Tapatalk

[Taurus84]

Originally Posted by ScoJac

According to the size specs in the link you provided above (135 x 45 x 22) it might be a tad too high, 3mm does not sound like much, but....
if you can get the hood and brace closed you'll have no problems with the wires exiting from the top edge.

I'd try it first, all manufactures sizes can differ from what is actually posted +/- a couple mm though ?

As for your question on the 20c rating.... crawling should be no problem but if you are going be bashing and running it balls out, I'd be looking at a minimum of a 45c.

If you are considering going 3s, check out the link I posted above.

Yeah it's 3mm higher but 7mm thinner too. Considering how the battery is placed into the tray (it's not 90 degrees) it might sit just right. But this is something i will need to try first before choosing the motor.

Now i'm worried about the 20C more. What happens when motor needs more juice than battery can handle? I think it should just slow the car down? Am i right?

[Jboucher]

When you pull more than the battery C rating, it heats up.

20C is okay for crawling

Sent from my Nexus 6 using Tapatalk

[Taurus84]

The thing is i want something faster than my RCMODELex Defender. Do you mean the battery heats up, or ESC and motor?