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ES4 Only Charging to 80%

Posted: Thu May 09, 2019 8:03 pm
by Jeremy Burke
Hi guys! New to the forum! I’ve scoured the forums for an answer to this and couldn’t find one.

Recently I legally obtained 2 ES4 scooters. They do not fold, so I’m assuming they were either BIRD or LIME scooters. Question I have is this. One charges normally to 100%, but the other charges to only 80% then stops. Attached are screenshots of the 4 batteries (the ones at 97/98% is the ones working correctly, the ones at 79%/80% are the ones stopping at 80%). Relatively new to all of this, but at a quick glimpse, looks like the firmware on the battery is different. Anyone have any insights as to why it would stop charging at 80%? Also, I do see a FW update, but I’m scared to do it (heard a few stories about speed reduction and error codes). Any help is greatly appreciated To view images REGISTER or LOGIN for full access.

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Re: ES4 Only Charging to 80%

Posted: Mon May 20, 2019 7:08 pm
by zannnewman
My es4 does the exact same thing. I'm digging around for answers now.

Re: ES4 Only Charging to 80%

Posted: Mon May 20, 2019 7:51 pm
by joeyfreshwater
i dont think there is any workaround, i think this happens when you use a battery off a jump scooter on a bird scooter, it may be they are not compatible

Re: ES4 Only Charging to 80%

Posted: Tue May 21, 2019 11:55 am
by MikeManson
u need to find dead batteries in the battery pack and change them

Re: ES4 Only Charging to 80%

Posted: Tue May 21, 2019 6:16 pm
by PLEE
Mine 95%. ... I guess its because of BMS firmware settings, its mybe something like longlife mode for rental birds and others. (battery has much more cycles, if woks with no full discharge and full charge). On rent app all frech charged scooters has 90% max, never more
I think bms firmware reflash must fix it, someone did it? normally lion must charge up to 4.15v

Re: ES4 Only Charging to 80%

Posted: Sun Jun 09, 2019 7:08 pm
by mandoSD49
Has anyone fixed this issue. How do you flash/ downgrade the bms on external battery. Esrollback will not let me ?

Re: ES4 Only Charging to 80%

Posted: Sun Jun 30, 2019 12:09 am
by mynameiszeldar
What i did works first i opened the dashboard to stop from beeping .. then downgrade external battery to 1.2.2 works great ... Even have more power i can get to 24mph .. but charges both batteries 100% only thing youll have an error code but it works

Re: ES4 Only Charging to 80%

Posted: Sun Jun 30, 2019 2:34 am
by Roan14
You need to flash the internal and external BMS to 1.4.1

Re: ES4 Only Charging to 80%

Posted: Sun Jul 07, 2019 3:42 pm
by ScootriES4
Can someone please show me how to flash the es4 pleaseee or.do it and il pay you

Re: ES4 Only Charging to 80%

Posted: Thu Jul 11, 2019 4:25 pm
by Jeremy Burke
Roan14 wrote:
Sun Jun 30, 2019 2:34 am
You need to flash the internal and external BMS to 1.4.1
How can I do that exactly? I have scoured this forum and google to no avail. Does anyone have a step-by-step guide?

Also, would upgrading through the "app" brick the scooter? Or limit the speed?

Thanks everyone To view images REGISTER or LOGIN for full access.