+28kW Electric Dirt Bike Riding || QS138 70H, FarDriver 96680

[@smokeyhouseproductions]

Yeah dude she rips!

[@mareklimanowski687]

Dobry dzik 😎

[@Emaster.85]

How hot does your battery get after riding in that video And how much power did you run?

[@pajajaska]

Battery gets maybe to 30-40 celsius. Im using samsung 30t cells in this build and those are high current cells so they give alot of power without overheating

[@Emaster.85]

Okay how many amps does each cell handle?

[@pajajaska]

@@Emaster.85 they are rated 35A so they handle 30A easily. My controller takes max 330A battery amps so I need to take only 27.5A max

[@Emaster.85]

Okay that sounds great

[@electrikeseb1247]

Salut elle arache bien ta moto 🔥🔥 tes 21700 30t viennent de chez nkon ?

[@pajajaska]

Thanks! Yes I bought the batteries from nkon. These are samsung 30t reclaimed so they are even cheaper than brand new samsung 30t. I paid only 1.93€ per cell. Merci! Oui, j'ai acheté les piles chez nkon. Ce sont des Samsung 30t récupérés, ils sont donc encore moins chers que les tout nouveaux Samsung 30t. Je n'ai payé que 1,93€ par cellule.

[@electrikeseb1247]

@@pajajaska oui je viens d en acheté 270 pour me refaire une nouvelle batterie car mes sony vtc5a liitokala encaisse mal la puissance avec seulement 150 amp sur une 20s12p tu as soudé en sandwich avec du cuivre ?

[@pajajaska]

@@electrikeseb1247 Voici comment j'ai fabriqué ma batterie kzbin.info/www/bejne/nqfEoHidbdahbMk&ab_channel=PajaJaska

[@electrikeseb1247]

@@pajajaska ah ok je n utilise pas cette methode au fer a souder 😅 y a 2 écoles pour ces chose la

[@pajajaska]

@@electrikeseb1247 Je ne recommande pas la soudure. Je soude parce que le cuivre est difficile à souder

[@jannelappalainen71]

Aika raju peli👍 mistä akun oot ostanu?

[@pajajaska]

Kiitti! Oon ite kasannu akun samsung 30t kennoista.

[@pajajaska]

Tän videon alussa on muutama kuva akusta kzbin.info/www/bejne/pGTSeo2Inq6EoqM&ab_channel=PajaJaska

[@creepybag]

This motor is not rate at 72? Can you run at 96v?

[@pajajaska]

yes you can run it with 96v. It will increase motor max rpm

[@colinriches1519]

You can run at higher voltage for higher top speed. Or you could run higher voltage and increase rear sprocket size for same top end but quicker acceleration depending on what you want. Use the motors kv value (rpm per volt) multiplied by system voltage to determine sprocket size accordingly. Side note: remember that other parts of the motor, depending on what motor you are using may not be rated for a dramatically increased rpm. Some inrunners, like the stock surron motors have the magnets screwed into the armature. This significantly increases the risk of catastrophic failure due to magnets breaking under the increased amounts of centrifugal force. Bearings also tend to be weak points especially on high kv motors. Overvolting is ok to a certain extent. Personally I wouldn't run any motor over 50% more than its rated for, just to be safe and not stray too far from its highest efficiency range. What this guy has done is safe and fun because it's an ipm motor thats actually a great deal more capable than it's conservative rating suggests and he's getting more out of that motor at no real extra risk.

[@PhoKingLitMedia]

what size bike?

[@pajajaska]

its been a 150cc bike. And it has 12 inch rear and 14" front wheel. So its pretty small

[@PhoKingLitMedia]

@@pajajaska im building a yz85 with a qs138. it crowds the left foot peg a little but looks like its going to work.

[@acvmp4966]

top speed?

[@pajajaska]

At the current gearing about +80kmh. I have tried 70kmh and 90kmh but 80 feels best.

[@pajajaska]

And the torque is pretty insane. Cant use full throttle at slow/mid speeds because it wheelies :D