Search found 8 matches

by greenno
Oct 26 2018 7:02pm
Forum: E-Bike Technical
Topic: BBSHD Motor shuts off while riding
Replies: 6
Views: 351

Re: BBSHD Motor shuts off while riding

Don't I feel stupid gotta do a spell check before I post. 31ah is the battery I am using not 3. I don't even think they make a 3ah battery, but I digress. My battery is 126 Sanyo cells 18650GA's rated at 3450mh and 10a discharge. Dropped in a new BMS today and plugged in charger. Will go for a ride ...
by greenno
Oct 26 2018 11:17am
Forum: E-Bike Technical
Topic: BBSHD Motor shuts off while riding
Replies: 6
Views: 351

Re: BBSHD Motor shuts off while riding

Battery AH is 3, yes 31 so I have tons of range. Probably going to replace BMS and see if that works. I had 60 trouble free miles on unit before this issue.
by greenno
Oct 26 2018 12:32am
Forum: E-Bike Technical
Topic: BBSHD Motor shuts off while riding
Replies: 6
Views: 351

BBSHD Motor shuts off while riding

Been having an issue that was identical with my BBSHD unit the last 2 times I rode it. Charges up completely to 58.8v and runs great and then around 54.1v it shuts off and won't restart. Pedal bike home (it is a bike) and check voltage output of battery at charging connector and main motor connector...
by greenno
Oct 23 2018 11:04am
Forum: Battery Technology
Topic: Spot Welding Copper Strips to 18650 Battery Cells
Replies: 223
Views: 38822

Re: Spot Welding Copper Strips to 18650 Battery Cells

Thanks for the reply. I'm guessing that a solid nickel plate would never get hot enough to generate enough heat to adversely effect the performance of the batteries I'm using. Uning the Sanyo 18650GA cells rated for 10a discharge. Using 126 cells in a 14s 9p configuration and making sure I have a mi...
by greenno
Oct 22 2018 9:23pm
Forum: Battery Technology
Topic: Spot Welding Copper Strips to 18650 Battery Cells
Replies: 223
Views: 38822

Re: Spot Welding Copper Strips to 18650 Battery Cells

Why would a copper sheet with holes and nickel plated stripes welded across holes and then welded to battery surface be better than just solid nickel welded across battery ends, am I missing something?
by greenno
Oct 22 2018 6:54pm
Forum: Battery Technology
Topic: Spot Welding Copper Strips to 18650 Battery Cells
Replies: 223
Views: 38822

Re: Spot Welding Copper Strips to 18650 Battery Cells

Just found this thread and loved it. Got a lot of good info. Started making my own batteries after buying and building up a BBSHD kit for my own bike and was using a typical shark pack 13.5ahs. After numerous rides I found I wanted more capacity for riding longer distances. So I did a little researc...
by greenno
Sep 27 2018 5:18pm
Forum: E-Bike Technical
Topic: BBSHD : what is this grinding?
Replies: 15
Views: 806

Re: BBSHD : what is this grinding?

Here is a pic of the driveshaft that sheared off right where it leaves the motor. All the bearings are fine, every other piece is good even the nylon gear which is supposed to be the weak link. So I ordered the bare bones motor and got the response from the tech that I need to make sure I open up th...
by greenno
Sep 26 2018 2:52pm
Forum: E-Bike Technical
Topic: BBSHD : what is this grinding?
Replies: 15
Views: 806

Re: BBSHD : what is this grinding?

Listened to your videos and my guess is possible the nylon gear inside. Mine just started screaming at me yesterday, opened it up and the main driveshaft from the motor sheared off. Out of the blue no previous noise. Parts are available from Luna but there customer service is lacking in response. Ha...