2020 Allant + 8S Battery Issues

Dallant

Well-Known Member
Region
USA
And now I have a second battery problem in addition to my self-ejecting sewer-seeking primary battery. My iPhone no longer receives a charge when connected to the Cobi mount. The phone battery then dies pretty quickly with the Cobi app loaded and my phone is drained inside of an hour. The phone charges fine on multiple other chargers so it’s not the phone. I have tried fiddling (technical term) with the cable connection at both the mount end and the phone end, no luck. Used alcohol to clean the lightning and USB B ends as well as a few blasts of compressed air into the Cobi hub port and the iPhone, tried removing my bike’s primary battery from the bike and recharging thinking maybe it will reset something, no luck.

This is my fourth Trek bike and my second Trek ebike (Powerfly 7 then this Allant +8S). Probably my last Trek. I have lost confidence in the brand’s build/design as well brand standards Why do they wait until a known latch design flaw results in failure before they fix. They should send the “revised” latch kit to all dealers holding inventory and pay them for doing a warranty repair before the dealer sells the bike to a consumer.
I might buy your Powerfly 7! St. Louis?
Took my Trek LBS about an hour to adjust the latch that wouldn’t unlock. I’m not a fan of any iPhone bike mount.
You could go buy a Specialized and have the frame break.
 

STL ebiker

New Member
Region
USA
>>I might buy your Powerfly 7! St. Louis?
Took my Trek LBS about an hour to adjust the latch that wouldn’t unlock. I’m not a fan of any iPhone bike mount.
You could go buy a Specialized and have the frame break.<<

Sorry, I recently sold it on Craigslist. I will miss that bike! My heart was set on the new Powerfly 9SE for this year, but it appears to be sold out nationally with no deliveries before mid-December. Nonetheless, Trek keeps sending out emails and marketing to me with that model featured to tease out the line.
I expect I will sell my Allant next year and buy a replacement EMTB if any become available under $7500.
 

Alaskan

Well-Known Member
And now I have a second battery problem in addition to my self-ejecting sewer-seeking primary battery. My iPhone no longer receives a charge when connected to the Cobi mount. The phone battery then dies pretty quickly with the Cobi app loaded and my phone is drained inside of an hour. The phone charges fine on multiple other chargers so it’s not the phone. I have tried fiddling (technical term) with the cable connection at both the mount end and the phone end, no luck. Used alcohol to clean the lightning and USB B ends as well as a few blasts of compressed air into the Cobi hub port and the iPhone, tried removing my bike’s primary battery from the bike and recharging thinking maybe it will reset something, no luck.

This is my fourth Trek bike and my second Trek ebike (Powerfly 7 then this Allant +8S). Probably my last Trek. I have lost confidence in the brand’s build/design as well brand standards Why do they wait until a known latch design flaw results in failure before they fix. They should send the “revised” latch kit to all dealers holding inventory and pay them for doing a warranty repair before the dealer sells the bike to a consumer.
Best to refrain from hasty conclusions. Are you sure it is not a cable failure? Those tiny usb cable contacts can be quite finicky in the best of environments. I bring along a compact battery bank that charges way faster than the measly usb outlet on Bosch displays.
 

GenXrider

Well-Known Member
I might buy your Powerfly 7! St. Louis?
Took my Trek LBS about an hour to adjust the latch that wouldn’t unlock. I’m not a fan of any iPhone bike mount.
You could go buy a Specialized and have the frame break.
I'm concerned about those Brose motor failures as well.
 

STL ebiker

New Member
Region
USA
Best to refrain from hasty conclusions. Are you sure it is not a cable failure? Those tiny usb cable contacts can be quite finicky in the best of environments. I bring along a compact battery bank that charges way faster than the measly usb outlet on Bosch displays.
Thanks, but not a hasty conclusion. I tested the cable using a wall charger and it worked. I tested the the port on the Cobi Hub using an android cable and an Android phone and it did not send current to the phone. I spent 20+ years in the consumer electronics industry and and ran every possible power/cable/device/battery reboot combination possible in addition to battery charge and removal trials. Cursing at the bike also failed.

It's probably a loose connection or solder point within the hub. Regardless, now I have to use a separate powerback and cable stashed in top tube pack using a longer cable; a cumbersome and unattractive solution to a problem that should not come on a month-old bike that cost over $4,000.
 

GuruUno

Well-Known Member
Thanks, but not a hasty conclusion. I tested the cable using a wall charger and it worked. I tested the the port on the Cobi Hub using an android cable and an Android phone and it did not send current to the phone. I spent 20+ years in the consumer electronics industry and and ran every possible power/cable/device/battery reboot combination possible in addition to battery charge and removal trials. Cursing at the bike also failed.

It's probably a loose connection or solder point within the hub. Regardless, now I have to use a separate powerback and cable stashed in top tube pack using a longer cable; a cumbersome and unattractive solution to a problem that should not come on a month-old bike that cost over $4,000.
If they don't fix it in an acceptable amount of time, ME, I'd ask for a replacement bike or money back, + compensation for the "inconvenience".
 

William - Bosch Team

Well-Known Member
Thanks, but not a hasty conclusion. I tested the cable using a wall charger and it worked. I tested the the port on the Cobi Hub using an android cable and an Android phone and it did not send current to the phone. I spent 20+ years in the consumer electronics industry and and ran every possible power/cable/device/battery reboot combination possible in addition to battery charge and removal trials. Cursing at the bike also failed.

It's probably a loose connection or solder point within the hub. Regardless, now I have to use a separate powerback and cable stashed in top tube pack using a longer cable; a cumbersome and unattractive solution to a problem that should not come on a month-old bike that cost over $4,000.
Hello!

I read through your previous posts and did not see that you've checked for this, so please forgive me if I missed it- have you checked the setting in the Cobi app (while phone is connected to Hub) to make sure it is still set to charge the phone? Sometimes this "button" can get accidentally hit, or status changed during a software update.

For anyone interested, I'll also add a quick bit of info on Trek's RIB System. The RIB System works quite well, BUT, the margin of error between too loose (intermittent power cut-out, and/or battery ejection) and too tight (can't remove from eBike) is fairly narrow. Aside from a defective Bosch power cable or defective RIB mount, this comes down to proper, fine-tuned adjustment.

I don't want to stray too far from the Bosch forum, so please re-post there if you need additional info on either topic.
 

MrNoFluFF.com

New Member
Region
USA
And now I have a second battery problem in addition to my self-ejecting sewer-seeking primary battery. My iPhone no longer receives a charge when connected to the Cobi mount. The phone battery then dies pretty quickly with the Cobi app loaded and my phone is drained inside of an hour. The phone charges fine on multiple other chargers so it’s not the phone. I have tried fiddling (technical term) with the cable connection at both the mount end and the phone end, no luck. Used alcohol to clean the lightning and USB B ends as well as a few blasts of compressed air into the Cobi hub port and the iPhone, tried removing my bike’s primary battery from the bike and recharging thinking maybe it will reset something, no luck.

This is my fourth Trek bike and my second Trek ebike (Powerfly 7 then this Allant +8S). Probably my last Trek. I have lost confidence in the brand’s build/design as well brand standards Why do they wait until a known latch design flaw results in failure before they fix. They should send the “revised” latch kit to all dealers holding inventory and pay them for doing a warranty repair before the dealer sells the bike to a consumer.
Amen!
 

TheChisholm

New Member
No issue with the batteries, rather the small cog on the rear cassette keeps jumping the chain as there are only 1.4 parts of the chain link fitting the teeth. Now the rear Hub freewheel bearing has gone. Anyone else had issues. I rode 132,000 miles on a Kalkhoff with a Rohloff hub without any issues at all and still using the same two batteries?
 

retiredNH

Well-Known Member
Region
USA
No issue with the batteries, rather the small cog on the rear cassette keeps jumping the chain as there are only 1.4 parts of the chain link fitting the teeth. Now the rear Hub freewheel bearing has gone. Anyone else had issues. I rode 132,000 miles on a Kalkhoff with a Rohloff hub without any issues at all and still using the same two batteries?
Do you ride fast? i.e. are you in that gear most of the time? Do you use turbo in that gear? (my guess is yes to both...)