Rad battery went from fine to dead in one bump

[tomjasz]

Sebz @ Luna wrote,


issues



Shutdowns and contact maintenance
Sometimes a shark battery's contacts may bend back far enough to not provide a stable connection to the cradle, resulting in cutouts and/or a causing the contacts to overheat. This may be more prone to happening if the shark is not reinforced to frame with a velcro strap. We recommend periodically checking this area to make sure the contacts are in the proper place. If they are not you can bend them back into place using a screwdriver. Please take care not to short out the terminals against each other or anything metal nearby.

NOTE: this image is for reference only, it's possible that your battery has more terminals or looks slightly different, if you are unsure, be safe and email support.

For the newer generations of sharks with 4 or 5 pins:

[IMG alt="Click image for larger version

Name: IMG_1748.JPG
Views: 10177
Size: 1.86 MB
ID: 94893"]https://electricbike.com/forum/forum/knowledge-base/batteries-aa/filedata/fetch?id=94893&d=1570480501&type=medium[/IMG]
If this issue does come up, in order to prevent it from happening again keep this in mind:

• Would be good to clean any carbon buildup off of the pins with a wire brush if possible (just the pins, not the contacts). This will help power flow better.
• If being used near ocean we recommend a light coating of dielectric grease on the pins such as Permatex 22058.
• If you have soldering skills and the cradle is only using one set of pins to run wiring to, then it would be useful to run the wiring to multiple pins in the cradle, the neighboring pin on both side is same polarity as the closest wire. Both pins on either side are capable of delivering power and if soldering the same wire to both pins it cuts the current in half for each pin. As such it is less likely to heat up since there is less bottlenecking of power.
• You need to start reinforcing the pack to the frame, this is critical. Maybe that means velcro, or even just using bungees. Checking to see if you can improve how you have the cradle mounted to frame to make it more sturdy can also help.

For a video on how to adjust contacts see below

 

[Gionnirocket]

Sebz @ Luna wrote,


issues



Shutdowns and contact maintenance
Sometimes a shark battery's contacts may bend back far enough to not provide a stable connection to the cradle, resulting in cutouts and/or a causing the contacts to overheat. This may be more prone to happening if the shark is not reinforced to frame with a velcro strap. We recommend periodically checking this area to make sure the contacts are in the proper place. If they are not you can bend them back into place using a screwdriver. Please take care not to short out the terminals against each other or anything metal nearby.

NOTE: this image is for reference only, it's possible that your battery has more terminals or looks slightly different, if you are unsure, be safe and email support.

For the newer generations of sharks with 4 or 5 pins:

[IMG alt="Click image for larger version
Name: IMG_1748.JPG
Views: 10177
Size: 1.86 MB
ID: 94893"]https://electricbike.com/forum/forum/knowledge-base/batteries-aa/filedata/fetch?id=94893&d=1570480501&type=medium[/IMG]
If this issue does come up, in order to prevent it from happening again keep this in mind:

• Would be good to clean any carbon buildup off of the pins with a wire brush if possible (just the pins, not the contacts). This will help power flow better.
• If being used near ocean we recommend a light coating of dielectric grease on the pins such as Permatex 22058.
• If you have soldering skills and the cradle is only using one set of pins to run wiring to, then it would be useful to run the wiring to multiple pins in the cradle, the neighboring pin on both side is same polarity as the closest wire. Both pins on either side are capable of delivering power and if soldering the same wire to both pins it cuts the current in half for each pin. As such it is less likely to heat up since there is less bottlenecking of power.
• You need to start reinforcing the pack to the frame, this is critical. Maybe that means velcro, or even just using bungees. Checking to see if you can improve how you have the cradle mounted to frame to make it more sturdy can also help.

For a video on how to adjust contacts see below

As mentioned earlier... I believe a majority of these issues are vibration related as noted by this article.

 

[soyabean]

Still annoyed that I sent a request for help a week ago without any human response.

Because of the excessive surge demand in everything ebikes because of the present worldwide "situation", businesses are prioritizing their call centers over "email".