Wisper 905 Torque - Regularly Losing power

KevinMull

Pedelecer
Mar 25, 2016
42
14
56
Wisper 905 Torque, 6 years old and had a replacement battery last year.
There's regular resistance when pedaling like it's losing power at any speed and on flat terrain. Seems to be getting more regular and it often feels like i'm pedaling in manual mode than with any assist.
The controller LCD remains fully displayed throughout.
The battery locking mechanism broke a while back so I have to keep the battery strapped in with a bungi strap but no problems with the LCD display.

Any ideas on what could be causing it?

Many thanks
 

Wisper Bikes

Trade Member
Apr 11, 2007
6,005
1,966
67
Sevenoaks Kent
Wisper 905 Torque, 6 years old and had a replacement battery last year.
There's regular resistance when pedaling like it's losing power at any speed and on flat terrain. Seems to be getting more regular and it often feels like i'm pedaling in manual mode than with any assist.
The controller LCD remains fully displayed throughout.
The battery locking mechanism broke a while back so I have to keep the battery strapped in with a bungi strap but no problems with the LCD display.

Any ideas on what could be causing it?

Many thanks
Hi, have you called our support team?

All the best, David
 

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