# Questions about the ESC

• 12-03-2012, 05:32 PM
DBG
Questions about the ESC
As you know, I have the Mamba Monster in my slash 2wd (ESC and motor), But I am going to get LiPOs, so I need your suggestions for "set-up" the ESC...I already have the Castle Link and everything....:

1-I am going to use 2x 2s, so is the same of one 4s...What is your option on "Cutoff voltage"?

2-If you use "Auto LiPO" on "Cutoff voltage", What voltage you use per cell? 3.3v, 3.4v, 3.5v ...etc?

3-What is the minimum of amps I need for use my ESC? I read somewhere the minimum is 120A for ERBEs but I know those trucks are big and 4x4 so I think is a bit different (lower amps) for my slash 2wd, Right?

I think that's it...

P.S.: [URL="http://traxxas.com/forums/showthread.php?8960754-My-Mamba-monster-Slash"]Here[/URL] is the link of my slash with the mamba monster:
• 12-03-2012, 06:14 PM
MITCH316
I would leave auto lipo on...I have my cut off voltage set at 3.4V...120A is right, the ESC will only take what it needs. Get yourself a good set of 2/2s batteries, that should see you right.
• 12-03-2012, 06:35 PM
DBG
[QUOTE=craig.mitch316;5349832]I would leave auto lipo on...I have my cut off voltage set at 3.4V...120A is right, the ESC will only take what it needs. Get yourself a good set of 2/2s batteries, that should see you right.[/QUOTE]

Ok, thanks for the help :thumbup:
• 12-03-2012, 07:05 PM
87 GN
This is a good start..
Just don't buy no name Ebay batts...

MY BATTS:
2S 9000 x 28C = 252,000 divide 1000 = 252 amps
2S 8000 x 28C = 224,000 divide 1000 = 224 amps
3S 5200 x 40C = 208,000 divide 1000 = 208 amps
2S 4700 x 25C = 117,500 divide 1000 = 117.5 amps
^I run in my Summit.. ^ Requires proper gearing^

( mah x c rating / 1000 = amps)

The
more amps the better / minimun of 120 amps.

The ESC will only draw the amount of amps it needs.

Higher the mAh the longer the runtime.
For brushless systems 8000 mAh about 45 min & a 5000 mAh about 30 min.
Times are longer for brushed systems.

Batts in series double the voltage:
2x 2s 20c 5000mah = 4s 20c 5000mah

Batts in parallel double the mah capacity:
2x 2s 20c 5000mah = 2s 20c 10,000mah.

A temp gun is kind of a must have.....

Hot motor + cool esc = under geared.
Cool motor + hot esc = over geared
Everything warm just right..

Motor ~ 180/190*F (82/88*C) maximum, ideally 140/160*F (60/71*C), temps can be 10*F higher inside the motor
ESC ~ pretty much same temps / Fan comes on @ 150*F (65*C)
Lipo's ~ 140*F (60*C) max, ideally 100/120*F (38/49*C).........

Besure to check sizing before you buy any batteries...

In time some batteries will become discontinued...

No particular order as to good, better, or best....

2S

With larger Lipo battery wires, you might need to - enlarge the exit hole on battery doors....
or run wires out the vents..

Direct Fit...........
2s GensAce 5000 mAh 40c
2s Gensace 5300mah 30c softcase packs
2s HiCountryHobbies/Billowy Power 5200 mAh 50c
2s Hyperion 5000 mAh 45C Soft
2s Kershaw designs 5000 mAh 35c

2s RC DUDE Power 5000 mAh 35c
2S Sky Lipo 5000 mah 40C -- fit snugly
2s SPC 5000 mah 25C hard case
2s SPC 5200 mAh 40C
2s SPC 5400 mAh 50C hard case
2s SPC 6000 mAh 30C hard case
2s SPC 8200 mAh 30c
2s SMC 5400 mAh 50c
2s SMC 6000 mAh 28c
2s SMC 8000 mAh 28C Soft Case Lipo
2s SMC 9000 mAh 28C Soft Case Lipo
2s SMC 9200 mAh 50C
2s Team Orion carbon 7000 35c
2s Thunder Power 45-90c 5000mah
2s Traxxas 5800 mAh 25c
2s Traxxas 7600 mAh 25c

Mod's.............remove retainers & back out or trim screws if they extend into battery compartment
2s SPC 8200mAh/40C

3S
Direct Fit..............
3s Hyperion 5000 mAh 45C Soft
3s Max Amps -6000xls
3s Team Orion Carbon 4700 mAh 45C
3s
kershaw designs 5000 mAh 35c
3s Kypom K6 6000 mAh
3s RC DUDE Power 5000 mAh 35c snug 29mm tall
3s HiCountryHobbies Billowy Power 5200 mAh 50c snug 28mm tall

Mod's..............remove retainers & back out or trim screws if they extend into battery compartment
3s SMC 5600 mAh 50C
3s SMC 5500 mAh 28c
3S SPC 5200 mAh 40C soft case
3s SPC 5400 mAh 50C soft-case
3s Thunder Power 3s 45-90c 5000mah
3s Traxxas 5000 mAh 25c

Traxxas link to batteries
[url]http://traxxas.com/products/parts/accessories/powercellbatteries-applications[/url]
[url]http://traxxas.com/products/models/electric/5608erevobrushless-batteries[/url]

battery compartment:
[IMG]http://i115.photobucket.com/albums/n281/suicideneil/otherstuff/erevobatterysize.jpg[/IMG]
• 12-04-2012, 05:53 PM
DBG
Thanks 87 GN :thumbup: