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Will I Harm My Rear Hub Running It While On A Repair Stand??

Started by nextcity, December 14, 2022, 12:33:52 PM

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nextcity

I'm a new Radmission owner (yes, the $499 sale).  New to ebikes altogether.  I also recently purchased a spare battery, as they went on sale.

However, it's too cold (and I am too old and sickly) to get out to ride the required first three times (followed by the 12 charge) to condition the new battery.

I'm wondering if I can just run down the battery by just running the rear wheel via the throttle while in my Park repair stand (without doing damage)?  I know nothing about rear electric bike hubs and was wondering if the lack of weight (having a rider) would somehow damage the electric  hub.

Any input would be greatly appreciated.

Altema

No, you won't harm the stock motor by running it without a load. It will just reach it's specified RPM and stay there for as long as it has power.
Balancing the battery is a good thing to do, but don't feel like it's an emergency or you have to rush it. The purpose of it is to balance out the individual battery cells inside your battery pack, and it's usually recommended for batteries which are new or have been unused for a while.

If you do decide to go though the process (it WILL give you something to do!), then make sure there are no pets of visiting children that could injure themselves on the spinning wheel. It will take a long time to run the battery down like this because, without a load, it will only draw enough power to keep the wheel spinning, and that is not much (8 to 12 watts?). To make it easier, take a wide rubber band, and put it right on the gap between the twist throttle and the handlebar grip. This will act like a cruse control, and the friction will keep the throttle in whatever position you twist it to. Make sure you take the band off before riding, and never try a thin rubber band because it can go down into the gap, and possibly jam or break, leaving debris inside the gap. Have fun, and resist the temptation to open a bottle of beer on the spinning tire  ;)

nextcity

Quote from: Altema on December 14, 2022, 02:27:19 PM
No, you won't harm the stock motor by running it without a load. It will just reach it's specified RPM and stay there for as long as it has power.
Balancing the battery is a good thing to do, but don't feel like it's an emergency or you have to rush it. The purpose of it is to balance out the individual battery cells inside your battery pack, and it's usually recommended for batteries which are new or have been unused for a while.

If you do decide to go though the process (it WILL give you something to do!), then make sure there are no pets of visiting children that could injure themselves on the spinning wheel. It will take a long time to run the battery down like this because, without a load, it will only draw enough power to keep the wheel spinning, and that is not much (8 to 12 watts?). To make it easier, take a wide rubber band, and put it right on the gap between the twist throttle and the handlebar grip. This will act like a cruse control, and the friction will keep the throttle in whatever position you twist it to. Make sure you take the band off before riding, and never try a thin rubber band because it can go down into the gap, and possibly jam or break, leaving debris inside the gap. Have fun, and resist the temptation to open a bottle of beer on the spinning tire  ;)

Thank you.  This is great news.  I live alone and don't have pets.  I've got a good repair stand too (Park PRS-3) with a weight limit well over 100 pounds.  I'm old, live in the north, and may not get out too often on this Radmission, so it's good to know I can keep both batteries conditioned this way.