My electric bike problem pls

[Ayerko]

Hi i want to ask everyone who know something about this please help me.
Yesttday i just finish drive on my electric bike and i charge battery like normal. I drive around 30mil per day. Today i go to work like normal but my electric bike working very strange. Power of battery look like start normal but after 2 second battery slow down and again start normal
And after 2 second again slow down and again and again... battery dont do full power like before like something block .. first i think something like break made battery Always slow but after i check if nothing block my wheels... i check all cable but everything connect. problem what you think can be? Thank you

 

[Art Deco]

Someone will jump in, but meanwhile using contact cleaner on the battery connections is a good place to start. Look for burnt or broken connectors.

 

[legsofbeer]

Today i go to work like normal but my electric bike working very strange. Power of battery look like start normal but after 2 second battery slow down and again start normal

Is this solely on pedal assist (PAS) or are you using throttle? Some bikes are or can be configured for weird throttle settings where throttle works only if you're pedaling, or the throttle is active only if the bike is already moving (eg. over 6kph).

 

[Stefan Mikes]

It would help if you told us the bike brand/model and model year.