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External Battery LED Lights Flashing & Scooter Slowing at same time

Posted: Fri Aug 09, 2019 1:49 pm
by jojo_web@me.com
Hello Forum.

I have an ES2 with an external battery. I have not had any error messages or "red wrench" pop up on my screen. HOWEVER, lately, when I'm riding my scooter, the 4 LED lights on the top of the external battery are flashing while I'm riding. When they start flashing, I can feel the scooter slow down. BUT - after a few second, they stop flashing and the scooter speeds back up.

Has anyone experienced this? Does anyone know what that root cause might be? Is my wheel/motor overheating or something like that?

Any advice would be appreciated!! Thanks everyone.

Re: External Battery LED Lights Flashing & Scooter Slowing at same time

Posted: Fri Aug 09, 2019 4:20 pm
by Sc00tr
Is there any beeping that accompanies it? Also if you connect over bluetooth and then ride does your phone display any messages?

Re: External Battery LED Lights Flashing & Scooter Slowing at same time

Posted: Fri Aug 09, 2019 6:34 pm
by jojo_web@me.com
Sc00tr wrote:
Fri Aug 09, 2019 4:20 pm
Is there any beeping that accompanies it? Also if you connect over bluetooth and then ride does your phone display any messages?
Hello Sc00tr! Thanks for replying. To answer your question - no - there is no beeping whatsoever when the LED lights start flashing. The LED's flash, the scooter slows down, and then the flashing stops and the scooter picks speed back up. Also, I do NOT use the bluetooth while I'm riding the scooter.

When I ride home, I will turn on my phone and connect the bluetooth with the scooter to see if there are any messages.

Thanks again for your reply!

Re: External Battery LED Lights Flashing & Scooter Slowing at same time

Posted: Sat Aug 10, 2019 7:51 pm
by Sc00tr
I haven’t seen that one before, I’ll post what you messaged me in case anyone else recognizes this error message:

Battery charging protection error. Please check if the extra battery is loose or check the error code again before restarting the vehicle.

Re: External Battery LED Lights Flashing & Scooter Slowing at same time

Posted: Tue Aug 20, 2019 1:00 am
by abujerry
I’m Having the same problem just as you described I check the cables nothing seems disconnected or burned it just feels like at times the second battery isn’t providing any power so that’s why it slows down. I have no errors in the app and it charges fine if I go on a flat surface or downhill I don’t get the LEDs on and it goes fast but is soon as I go up hill where there’s any load on it all the LEDs come on and loses power and I have to push with my feet a little seems like the second battery turns off any information would be appreciated thanks guys

Re: External Battery LED Lights Flashing & Scooter Slowing at same time

Posted: Mon Dec 30, 2019 10:31 am
by Josemasm
I have the sale problem. My external battery have the temperature sensor damage.

Re: External Battery LED Lights Flashing & Scooter Slowing at same time

Posted: Wed Feb 19, 2020 4:32 am
by Jer bear
Well mine started doing this also,same deal nothing apeears wrong with anything (board is fine no error codes no wrench no loose cables), it's my belief that the only real flaw in the ES models is everything to do with the external battery. I have mine wrapped in gorilla tape,I got tired of ruining batteries because of the loose external battery bracket,so I fixed it with tape and no bracket,,now after 2 months a few hundred miles this problem with the flashing lights and slightly slowing down at the same time?!?

Re: External Battery LED Lights Flashing & Scooter Slowing at same time

Posted: Sun Sep 19, 2021 5:11 pm
by Ryuji yatahagane
jojo_web@me.com wrote:
Fri Aug 09, 2019 1:49 pm
Hello Forum.

I have an ES2 with an external battery. I have not had any error messages or "red wrench" pop up on my screen. HOWEVER, lately, when I'm riding my scooter, the 4 LED lights on the top of the external battery are flashing while I'm riding. When they start flashing, I can feel the scooter slow down. BUT - after a few second, they stop flashing and the scooter speeds back up.

Has anyone experienced this? Does anyone know what that root cause might be? Is my wheel/motor overheating or something like that?

Any advice would be appreciated!! Thanks everyone.
Hello, here from Spain i bought the Es2 n then upgrade it to Es4 adding the external battery. And instantly i experience the same issue, when my battery is full charge some times the 4 leds of the externa battery blink at the same time so on that moment the scooter loses power, just on the time the leds are blinking.
On my special case before upgrade the scooter with the external battery i did change the batteries from the internal battery to ones with more capacity 3000mah. so now the tow batteries have different capacities.