OKAI ES-400 Battery Connector

Marcel_HAX
Posts: 2
Joined: Mon Jul 20, 2020 3:09 pm

OKAI ES-400 Battery Connector

Postby Marcel_HAX Mon Jul 20, 2020 3:16 pm

Hi, I have a few ES-400 Batteries wich I want to use. But the problem is, that I dont know how to connect them because they need a unlock voltage to a pin. But I cant find any documentation on this connector.
alpha-b
Posts: 3
Joined: Tue Mar 31, 2020 5:59 pm

Re: OKAI ES-400 Battery Connector

Postby alpha-b Wed Jul 29, 2020 11:00 pm

hello you have to open the battery and make a shunt between two mosfets
Marcel_HAX
Posts: 2
Joined: Mon Jul 20, 2020 3:09 pm

Re: OKAI ES-400 Battery Connector

Postby Marcel_HAX Mon Aug 10, 2020 10:44 am

Thanks! Do you have any tips on how to get this grey fill material out of there?
tempmail
Posts: 1
Joined: Thu Aug 27, 2020 2:32 pm

Re: OKAI ES-400 Battery Connector

Postby tempmail Thu Aug 27, 2020 2:54 pm

Thanks! Do you have any tips on how to get this grey fill material out of there?
Hi!
I recovered a battery of ES-400 as well. I also found out how to activate the output, or how to charge it.

So far I just charged the battery with a 54.6V power supply and everything went well. Here's what I now know about this connector:
Image

I now want to try to communicate with the BMS, but I don't have any info to do so. Would you have been able to remove this green paste? If yes, you would have info about the BMS ;) ?

I briefly tried to take the battery out of its hull but without success.

EDIT : Power is cutting of after few seconds when I push more than 20-40 watts. On the screen we can see "error 31"
Berg
Posts: 1
Joined: Thu Oct 15, 2020 9:22 pm

Re: OKAI ES-400 Battery Connector

Postby Berg Thu Oct 15, 2020 9:29 pm

hello you have to open the battery and make a shunt between two mosfets
Anybody who knows wich two mosfets? or any other way to make this battery work??

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