Johnkow

Is it possible to hook a HPI Racing 1146 Firebolt 15t Motor (540 Type) directly to a battery without an esc? I just want to be able to turn it on and off. What kind of battery would you recommend?

rcracer207

iTrader: (11)

Yes you can.
I would suggest a NiMH since you won't have an ESC to cut off power when voltage gets low. A lipo would work but you would want to monitor voltage closely so that you do not discharge the cells beyond 3v /cell and cause damage to the battery

Johnkow

So a 7.2v Ni-MH battery would be too powerful?

Johnkow

Is it possible to hook a HPI Racing 1146 Firebolt 15t Motor (540 Type) directly to a 7.2 Ni-MH battery without an esc? I just want to be able to turn it on and off.

jzwolen

iTrader: (38)

Yes it's possible. positive to positive, negative to negative. Wire in a switch on the negative side. Good luck controlling it.

Johnkow

Ok. Thank you.

Johnkow

Will it burn up if it runs for 2-3 mins?

TeamSkunkwerks

iTrader: (142)

Well....it will need some airflow to help cool the motor off. I'd be worried about the brushes, springs, & having to cut the comm from the heat & extreme usage.
Not to mention running the battery down flat down to 0.

Johnkow

I'm only using it for about 2-3 minute runs a total of 4 times. With enough ventilation, would the motor and battery be alright? Do I have to run the battery down to zero after every 2-3 min run even if all 4 runs will be in one day?

Metalsoft

iTrader: (76)

No reason to worry, just hook it up and let it run, if you are only going to run it like you stated, you won't even have to charge the battery.

Hook it up and let it rip, it's not going to hurt either one.

TeamSkunkwerks

iTrader: (142)

PM sent.

TeamSkunkwerks

iTrader: (142)

Never run the battery down to flat 0!!
When you see a major decrease in power, then charge it up. Let the battery cool down first though.
How many MaH are you using?