What is the best lipo for my e revo bl edition

[traxxasandme]

Im wondering what the best lipo battery is for my e revo. I want a 3s and as high or higher than 25c and 3000mah. I want a battery that is no more than $65.00 a piece and it needs to be able to fit in the e revo. I would prefer not to have to modify the battery tray. I dont want a $100.00 battery pack either because I dont want to spend that much on batterys.

[ecopsorn]

SPC Li-Po Power, Lithium Polymer (LiPo) Battery Pack; 5000mAh, 25C, 3S, 11.1V

cheapest u can find for the price and what you want I guess.

Except it is not supposed to fit.
-ksb51rl

[mattbaillie22]

Take a look at ******* or ***** you can get some high c rating lipos for decent money. Pm me and I can give you a link on where to get them from.


---
I am here: http://maps.google.com/maps?ll=-27.618312,153.042216

[revomikey]

Agreed on ******* and *****, I have both brands and they are great, loads of punch and perfect balancing.

[LaTuFu]

GensAce also makes a good 40c battery for the money.

[87 GN]

This is a good start of available batts, just don't buy no name Ebay batts.


MY BATTS:
2S 8000 x 28C = 224,000 divide 1000 = 224 amps
2s 9000 x 28c = 252,000 divide 1000 = 252 amps
3S 5200 x 40C = 208,000 divide 1000 = 208 amps
2s 4700 x 25c = 117,500 divide 1000 = 117.5 amps
^Requires proper gearing^

mAh x C Rating divide 1000 = amps

The more amps the better / minimun of 120 amps.


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 parrallel double the mAh capacity:
2x 2s 20c 5000mah = 2s 20c 10,000mah.

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

Motor = 180*F maximum, ideally 140-160*F
Esc = same pretty much- fan comes on at 150*F
Lipo’s = 140*F max, ideally 100-120*F




2S
Direct Fit...........
2s gensace 5300mah 30c softcase packs
2s Hyperion 5000 mAh 45C Soft
2s SPC 2s 5200 40C
2s SPC 2s 6000 30C
2s SMC 6000 mAh 28c
2s SMC 8000 mAh 28C Soft Case Lipo
2s SMC 9000 mAh 28C Soft Case Lipo
2s team orion carbon 7000 35c
2s ******* ******** 6000mah 25-50c
2s Nosram Fat Cobra hardcase
2s HiCountryHobbies/Billowy Power 5200 mAh 50c
2s RC DUDE Power 5000 mah 35c
2S Sky Lipo 5000 mah 40C -- fit snugly

Mod's.............remove retainers & back out or trim screws if they extend into battery compartment
2s ******* 30c 5000 mAh soft - Extend Batt Door Out
2S ******* 5200 mAh 5.2 Hard Case - Trim Batt Door For Wires
2S ******* 5000 mAh 5.0 Hard Case - Trim Batt Door For Wires
2s ***** ********* 5000 mAh/30c/hardcase

3S
Direct Fit..............
3s Hyperion 5000 mAh 45C Soft
3s Max Amps -6000xls
3s Team Orion Carbon 4700 mAh 45C
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
3s ***** 5000 mAh 30c
3s *********x 5800 mAh 30c - enlarge hole on battery door

3S Mod's..........remove retainers & back out or trim screws if they extend into battery compartment
3s SMC 5500 mAh 28c
3S SPC 5200 mAh 40C
3s ******* ******** 6.0 6000 mAh 25-50c
3s ******* 5000 mAh 30c soft - Minor Mod/Extend Battery Door Out


4S
4s ******* 4000 mAh 30c - Minor Mod/Extend Battery Door Out (Same size as the ******* 3s 5000mah 30c soft)

Traxxas link to batteries
http://traxxas.com/products/parts/ac...s-applications
http://traxxas.com/products/models/e...less-batteries
most posted pic in this forum...

[traxxasandme]

Thanks I think for my next set im gonna get turnagy lipos. What charger would u recommend for them?

[87 GN]

^ Icharger 208 or 206 & a PSU

[traxxasandme]

Wich battery would u recommend out of all of those thats a huge list I want about 45 min runtimes.

[kvg20]

3S ********s 6000 need mods? I just got them but havent tried to fit them yet....

This is a good start of available batts, just don't buy no name Ebay batts.


MY BATTS:
2S 8000 x 28C = 224,000 divide 1000 = 224 amps
2s 9000 x 28c = 252,000 divide 1000 = 252 amps
3S 5200 x 40C = 208,000 divide 1000 = 208 amps
2s 4700 x 25c = 117,500 divide 1000 = 117.5 amps
^Requires proper gearing^

mAh x C Rating divide 1000 = amps

The more amps the better / minimun of 120 amps.


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 parrallel double the mAh capacity:
2x 2s 20c 5000mah = 2s 20c 10,000mah.

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

Motor = 180*F maximum, ideally 140-160*F
Esc = same pretty much- fan comes on at 150*F
Lipo’s = 140*F max, ideally 100-120*F




2S
Direct Fit...........
2s gensace 5300mah 30c softcase packs
2s Hyperion 5000 mAh 45C Soft
2s SPC 2s 5200 40C
2s SPC 2s 6000 30C
2s SMC 6000 mAh 28c
2s SMC 8000 mAh 28C Soft Case Lipo
2s SMC 9000 mAh 28C Soft Case Lipo
2s team orion carbon 7000 35c
2s ******* ******** 6000mah 25-50c
2s Nosram Fat Cobra hardcase
2s HiCountryHobbies/Billowy Power 5200 mAh 50c
2s RC DUDE Power 5000 mah 35c
2S Sky Lipo 5000 mah 40C -- fit snugly

Mod's.............remove retainers & back out or trim screws if they extend into battery compartment
2s ******* 30c 5000 mAh soft - Extend Batt Door Out
2S ******* 5200 mAh 5.2 Hard Case - Trim Batt Door For Wires
2S ******* 5000 mAh 5.0 Hard Case - Trim Batt Door For Wires
2s ***** ********* 5000 mAh/30c/hardcase

3S
Direct Fit..............
3s Hyperion 5000 mAh 45C Soft
3s Max Amps -6000xls
3s Team Orion Carbon 4700 mAh 45C
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
3s ***** 5000 mAh 30c
3s *********x 5800 mAh 30c - enlarge hole on battery door

3S Mod's..........remove retainers & back out or trim screws if they extend into battery compartment
3s SMC 5500 mAh 28c
3S SPC 5200 mAh 40C
3s ******* ******** 6.0 6000 mAh 25-50c
3s ******* 5000 mAh 30c soft - Minor Mod/Extend Battery Door Out


4S
4s ******* 4000 mAh 30c - Minor Mod/Extend Battery Door Out (Same size as the ******* 3s 5000mah 30c soft)

Traxxas link to batteries
http://traxxas.com/products/parts/ac...s-applications
http://traxxas.com/products/models/e...less-batteries
most posted pic in this forum...

[traxxasandme]

Also whats the power supply? Is that like a 12 volt battery?

[mattbaillie22]

I think the **** techs are a little on the too much "ham at Xmas lunch" well anything over 3s I believe.

[87 GN]

post ten look at the 6000 mAh. higher the mAh the longer the run time.. always a plus. I think they are good I don't have first hand experiance with them so I can't really say..

[traxxasandme]

Would the I charger 208b charge 10c because thats the charge rate for the turnagy **** tech battery above if so how long would it take to charge?

[traxxasandme]

I like the higher c rating though because that means more power.

[RedRaider]

Hyperion, period, end of story !

Just check my sig....

[ducati777]

3S ********s 6000 need mods? I just got them but havent tried to fit them yet....

The wires exit out the sides, so a notch in the battery door is required, but they fit perfectly.

I think the **** techs are a little on the too much "ham at Xmas lunch" well anything over 3s I believe.

I'm not sure what you're saying here....?

I like the higher c rating though because that means more power.

meh, thats not really an accurate statement. One has to consider capacity as well.

[BL-Bob]

Would the I charger 208b charge 10c because thats the charge rate for the turnagy **** tech battery above if so how long would it take to charge?

60 amps would get her done alright in about 10 minutes. You'll need a 750w charger, supply and jumper cables for charge leads.

[revomikey]

There really is no need to push your cells to their limits, surely life isn't that chaotic?

A nice steady 5 or 6 amps will be sufficient and in balance mode will take about 40 minutes, that's why I run 2 chargers.

[traxxasandme]

Could I just use a 12 volt car battery for the 208b and would it still charge 10c because I dont really understand power supplys arnt they just like batteries.

[87 GN]

You are confused about the 10c IDB.. I am PMing you now some homework test tomorrow in 12 hrs.. lol....

[traxxasandme]

Im just going to talk to the people at my lhs and see if they can explain it better to me. I dont really understand the thing about the rates and other things I used to drive nitro and didnt have to worry about all of this and im trying to learn all that I can. Also I dont really see why u need a power supply besides if you cant reach an outlet. My charger just plugs into the wall though.

[87 GN]

charge 1 amp for every 1000 mAh is 1c

5000 mAh batt
example 5000 mAh = 5 amps @ 1c
example 5000 mAh = 10 amps @ 2c

8000 mAh batt
example 8000 mAh = 8 amps @ 1c
exapmle 8000 mAh = 16 amps @ 2c

[traxxasandme]

So 5000 mah takes 5 amps at 1c charge rate to charge? I dont understand all the amps and the c rate.

[traxxasandme]

I found out that a power supply is just somthing that basically converts 110 into 12 volt.

[87 GN]

Yes & yes see you are getting there keep reading......

[revomikey]

I made the nitro to lipo leap as well, learning about it all is part of the fun. Get stuck in, learn it, absorb it and enjoy it!!

[traxxasandme]

Im probably going to get the turnagy ******** 5000 mAh 45c 90c burst 3s and it can handle a 10c charge rate. So would this battery take 50 amps to charge?

[revomikey]

It doesn't have to have 50amps, you can charge at 5 amp, that's 1c. That will take about 40 minutes, 2c will be 10amp, that will take about 20 minutes and so on.

[traxxasandme]

It doesn't have to have 50amps, you can charge at 5 amp, that's 1c. That will take about 40 minutes, 2c will be 10amp, that will take about 20 minutes and so on.

I really dont understand that. I thought that it would charge at 50 amp that stuff doesnt make sense to me.

[traxxasandme]

Your saying:

1c=5amps
2c=10amps
3c=15amps
4c=20amps
5c=25amps
6c=30amps
7c=35amps
8c=40amps
9c=45amps
10c=50amps

[revomikey]

That's right, but on a 5000 mah pack. If its a 4000 mah pack then the Maths is different.

1c is 4amp
2c is 8amp
3c is 12amp and so on

The c value is changed for the different sized cells. On a 2200 pack:

1c is 2.2 amp
2c is 4.4 amp.


Following now?

In addition, amps are pushed into the battery when charging and not drawn into. Not many (if any) chargers have 50a capability. My accucel charger maxes out at 6 amp. That's not a problem as I run 2 chargers so can charge 2 sets of lipos in about 40 minutes.

[traxxasandme]

Ya like you take off the zeros 5000 mah take off the zeros and its 1c=5amp 2200 mah take off the zeros its 1c=2.2 mah so 8000 mah would be 1c=8amps. I think I got it now.

[revomikey]

Yes yes yes my friend you have nailed it.

[traxxasandme]

Thank you I dont feel as noobish now!

[revomikey]

We have all been there mate. No worries and happy new year. It's gone midnight here just now so going to bed. Here's to a happy rc new year.

[traxxasandme]

Is it bad for a lipo to charge at a high c rate like a 3s lipo says it can handle 10c charge rate but is that bad charging it that rapidly.

[LaTuFu]

It's not "bad" but it does possibly reduce the longevity of the battery.

You will want to consider charging your batteries on the balance setting. 1c or 2c max rate for balance charge.

[87 GN]

Is it bad for a lipo to charge at a high c rate like a 3s lipo says it can handle 10c charge rate but is that bad charging it that rapidly.

What charger are you going to use to charge, say a 5000 mmAh @ 10C? And YES it is bad to charge that fast jmho..if you could...

This is the most powerfull charger that I know of, unless I am missing something.
Powerlab 8 40 amps

All the charger you will ever need, the PowerLab 8 has the power and versatility to handle just about any situation you can present it.

Make use of FMA's free Charge Control Software to configure the PL8 to your heart's content, safe in the knowledge that the charger's built-in safeguards won't let you put a foot wrong.

With our unique JST-XH & ThunderPower balance board thrown in for free, you're ready for just about anything.
Specifications
•Maximum charge power capacity: 1344W (@ >25V; 500W @ 12V)
•Charge current range: 0.01-40.0A
•Discharge current range: 0.01-40.0A
•Input voltage range: 10-32V DC
•Maximum discharge power capacity: 100W / 10A
•Maximum regenerative discharge: 1344W / 40A
•Current drain for balancing: 1000mA
•Balance accuracy: 6mV
•LiPo/LiIo/LiFe: 1-8 series
•NiCd/NiMH battery cell count: 1-21 series
•Pb battery cell count: 3-12 series
•Battery setup memories: 25 user, 50 preset
•Intelligent temperature control: Yes
•PC Connectivity: USB port
•Weight: 1140 g
•Dimensions (LxWxD): 148x166x91 mm

[traxxasandme]

I was just wanting to know if charging at higher c rate would damage the batteries and 10c came from the battery said it could handle 10c charge rate.