lehner 2250 13turn
 

Can I run a lehner 2250 13 turn, BK 36120 on 36 cells
are these batteries good for their price? no lipos
http://cgi.ebay.com/4-RC-7-2V-3300mA...QQcmdZViewItem

http://cgi.ebay.com/2-RC-7-2V-3300mA...QQcmdZViewItem

The 36120 has an rpm limit of 42000. With the cell's your running it come's down to 43,2 volt's.

The 2250 13 turn got a kv rating of 911 rpm per volt. So 911 x 43,2 = 39355,2 rpm. So that's ok.

The cell's you showed are worthless. They will not live under the high current the 2250 want's. You need some better quality, matched cell's like IB's and GP's.

i sure do hope your truck is tough because that is going to have a lot of power. what is this setup going in?

That motor wil preform better on 16 good cells than on 36 bad ones.

What will you power with it?

that motor deserves good cells.

Are these batteries better? Vehicle is an emaxx.

http://cgi.ebay.com/ws/eBayISAPI.dll...PCN_BIX_Stores

Can the controller handle this type of power? What would the runtime be?

Why not just get some GP3300's off mike? Each cell is 5$, not bad.

What kind of drive line you plan on running? This motor is going to shred some stuff up until you get it bullet proof. then it may break stuff every once in a while.

Believe this, he's used this motor and knows

Those battery's are for radio's, AA size. To small and can't deliver the amp's. You need Sub C cell's, like these;

http://www.rc-monster.com/batteries.php

IB and GP are both the best nihm battery's at this moment.

The listing clearly stated "sub-C" cells in multiple places. From mike, 36 cells at $5 per cell would cost $180, not including connectors or bars. The cells on ebay are $25 for pack of 7and include connectors and bars. 6 packs of 7 cells at $25 is only $150 with connectors and bars. Enough for 6 6 cell packs and a 5 cell receiver pack, plus 1 extra cell to sell on ebay. Easy to see the better deal. Prices not factoring shipping. Now, would this set up be safe with gearing 51 tooth spur, and a 28, 29, or 30 tooth pinion?

Here is the ebay listing again
http://cgi.ebay.com/ws/eBayISAPI.dll...PCN_BIX_Stores

About how many amps would this pull and about what would the runtime be? Would this setup be too much power for the BK 36120 controller?

its not a matter of price its quality trust us we know :027: i did the same thing when i first got into brushless i bought a cheap pos 3000mah pack and man did i regret it. not only did my truck run at half the speed it should of it ran hot as well:035:. if you've got enuff money to get a 2250 then money for good cells shouldent be a prob:028:

Those GP3300s will be fine. Alot better than the cheap nasty ones anyway.

"Non Yet Match Battery Cell"- Which is a no-no when you want to build battery packs. The packs wont last as long as they should be..

I wouldnt search on ebay for batteries though.. The seller can say anything just to sell his stuffs. The batt can look brand new on the outside but you cant really know whats "inside". Go with the trusted seller like Mike.

P/S but if you insisted to buy on ebay which is obviously cheaper, then go ahead. But rememder, we all have told you about this..

You know you need about 20 cells (2000 watts) to reach the 60 mph?

what is your goal? it is nice to have a truck you can drive without worries. trust me on this one..

You right rene.
I have had my truck roll 3ft and was done in a play session. If you really want to go fast and do this that and other. I would really suggest lipo. The drive line will thank you for it.

If you interested for the right money I could part with a 2250 10t 26 gp 3300 and a 36120.

Batteries are the most important part of you system, If you are willing to carry the weight of 36 cells I would suggest a 10sp2 lipo setup it will weigh the same or less and deliver the power that motor needs and give you very long runtime. A 400$ motor and a 400$ controler should go with 400$ batteries, not 50$ or 50 cent batteries. It would be like trying to run a car on cat pee. Now 400$ batteries are not nessisary but personally I would go with no less than some 3800s or 4200s quality cells. But seriously if you want to run a 2250 throw the budget out the window because to build an emaxx to handle that type of power will not be cheap, I would go with the best stuff ue has and cross my fingers... dragging around 36 cells will stress your drivetrain like crazy. I would like to see it done it would be a neat truck, I wouldnt mind drag racing you with my Jammin CRT 2240 8s lipo...:eek:

Don't underestemate the power of 36 cells buddy...

Your 8S isn't unbeatable..

Hi Extremexmod, may I ask if you have some experience with BL?

Yes but he has to drag 36! cell's from a dead stop to full speed. By the time he does that, the crt is long gone.

hmm.....tough competition, 8s lipo or 36 bargain basement ebay cells. I'd favour the lipo :)

Ohh the amp rating of the 2250 accelerating will be interesting to see what it does to el cheapo cell's. Gimme some smoke pleaaase!

That's a passed station guys.. I am not a complete idiot... like i said in an earlier post, i'd take 16 good cells above 36 crappy ones..

We came to the GP3300's.....

These won't smoke.. (unless your name is Sneeck and you add them to your old packs.. :p )

Hell I can smoke anything that isn't supposed to smoke without trying!

Get your butt on msn please Rene...

Done eating Pancakes Sicco?!

I know 8s is not unbeatable, win or lose I think it would be a fun race.... but if I had 10s?............... my MGM would smoke!

You got weight advantage. 36 cell's will not get to speed to quickly. Need's to be 100% perfect balanced to stay in 1 straight line, not crash half speed into a curb without steering.

@ Serum,

Pancakes4evah!

The 2250 has no problem dragging the 36 cells around. Mine would drag 26 around like it won't nothing it was just the rest that didn't like them.
I am not worried about the motor as much as the rest of the truck.
I am surprised I didn't twist a cvd or something up like a pretzel. :D

just get some good cells and you wont regret it

Just my opinion but i think it's just unpleasant if you need to cringe every time you nail the throttle,it's called mechanical sympathy.I don't think i'd like to run 2.5kg of batteries with all that torque,i think it would just feel bad.It would haul though,literally,you could probably pull your road car along at a few mph.

Could I use a 10s lipo set up from max amps? Could I use the 4000 mah packs with out burning them up or would I need to use 8000 mah packs? Also, how good are these lipo cells and is this deal good?
http://cgi.ebay.com/Two-7-4V-8000mAh...QQcmdZViewItem

Enough with buying battery's from ebay. You do not know what you will get, like said earlier the seller can praise them into heaven about power and safety, but when you run them they suck. Don't risk it and do it right the first time, your spending a huge load of money on the controller and motor anyway, so it needs good cell's. Not ebay junk IMHO.

Mike has added some lipo batt's I saw.

http://www.rc-monster.com/batteries.php

Apache 5s 18.5v 3700mah LiPo Battery Pack

This will work quite well. 2 of them in serie's for voltage or 2 of them in parralel for double the mah, but at 18,5 volt. Your choice. You do need a good lipo charger for it obviously.

I seriously wouldn't want to waste my money trying to find el cheapo batt's, cause surprise! your truck will not run very good, if at all.

those are only 2s lipo packs

There are two so it is like a 4s 8000 mah pack. I could get 2 of those listings and get another 2s 8000 from their main website. At maxamps, two 8000 2s packs are $260 total. Could I just use 4000 mah packs? Where can I get lipos for less than maxamps.co or rc-monster.com if ebay is bad?

There are two so it is like a 4s 8000 mah pack. I could get 2 of those listings and get another 2s 8000 from their main website. At maxamps, two 8000 2s packs are $260 total. Could I just use 4000 mah packs? Where can I get lipos for less than maxamps.co or rc-monster.com if ebay is bad?

Dude how many time's do we need to say this;

CHEAP CELL'S SUCK FOR BRUSHLESS

Especially if you got a 400$ motor and controller. You do NOT want bargain battery's and come back complaining the set-up doesn't perform like it should. Well duh, the motor you picked needs good battery's to perform good.

Unless ofcourse you want to smoke the lipo's cause it can't deliver the amp's the 2250 want's.

I'm not going to say this again, so be warned if you do pick up cheap cell's.

Okay, fine. No Cheap cells. Now, can the BK 36120 handle 11s lipo and a lehner 2250 14 turn (lower amp draw, longer run time) or should I stick with 10s lipo and a 2250 13 turn (Higher amp draw, shorter run time).

Should Lipo cells be counted at 3.7 volts or 4.2 volts when calculating maxx cell count for the esc?

How good are PolyQuest lipo cells?

I think polyquest are good cells, I have Hyperion 3700s I believe they are the same, I think the bk 36120 would be fine, I am not sure on what turn would be better, I use 3.7 to calculate. I am sure others would disagree but I would also think about the 40 cell schultz controler if you have a place to mount it, it has a higher rpm and amp limit, and if you ever get really crazy 13s lipo would be an option.

I think a 2240 on 8s with an MGM 16024 would be a better choice,i can't think of many places where you can actually lay down more power than that.Up and down a wide road in straight lines maybe.
The schulze 32.170W would be the best controller for 10s IMO and should run smoothly virtually any motor you can think of.It's quite large though.The 40.160 is water cooled only i think,i'm not sure how that works,it'd be cool if it had a little radiator you could mount up front.

I was about to say the same thing..

imagine what it would of been like if you had lipo under the hood :017: