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use the main battery as Powerbank

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Posts: 20
(@andre)
Eminent Member
Joined: 1 year ago

Hello, i tryed so use my super soco akku as powerbank but it do not work....

i use an 800 W dc dc step down converter and a victron 48v converter for transfer to 230V.

on https://wiki.voltgaraz.cz/index.php/Bat ... ctor#Gen_2 i fount the info to activate the 60V output from the Battery (in my case in mode A) but it looks like that the bms of my 60V45ah battery dont provite the full power, it turns off and on in very short time.... i cant see it on my volatage measurement device but the output from my victron converter jumpt from 200 to 240 ... permatly. If i use a normal bulb i can see it flicker. Not the rigth working way :-/.

with an other 60V batterie witout bms it works fine.

To avtivate the battery i conncet pin 1 to voltage negativ ... can it be that i have to use a resistance or must i use the can bus???....
I hear somewere that the bms only provide the power howΒ  request by the can bus system... but there must be a way to let it work... but how πŸ™

Have anyone an idee how i can solve that.

Andre

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1 Reply
(@farmerkid820)
Joined: 2 years ago

Active Member
Posts: 5

@andre too bad it didnt worked πŸ™

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Posts: 5
Topic starter
(@farmerkid820)
Active Member
Joined: 2 years ago

thank you very much, that guy makes awesome videos!

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Posts: 20
(@andre)
Eminent Member
Joined: 1 year ago

jup to bad... it would be such a nice powerbank... (2x :-D)

Β 

but maybe anyone have an idea how to get the power out of the box.

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2 Replies
 Koen
(@koen)
Joined: 1 year ago

New Member
Posts: 2

@andre I found on my TC Max that I can draw power from the charge socket with battery plugged in to bike as usual but not from battery alone.

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(@andre)
Joined: 1 year ago

Eminent Member
Posts: 20

@koen it works on the cpx le3 as well i get out the battery voltage but it dont work rigth with my converters...

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Posts: 20
(@andre)
Eminent Member
Joined: 1 year ago

Oh nice i will test it. nice idea ... only crap that i must cary my bike if i need power for the frige 😀

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Posts: 20
(@andre)
Eminent Member
Joined: 1 year ago

ok .. now it works .... not to good but it works... the dc dc step down converter is to slow so it comes to the voltage breakdown. now i use a 120 ohm ressistor to aktivate the bms and a 80 mickroF. Contensator on the output of the dc dc converter. so it is working ...

if u want to use it for a frige ... use a bigger dc dc wandler then 800W ...

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1 Reply
 Koen
(@koen)
Joined: 1 year ago

New Member
Posts: 2

@andre Don't know if it helps you, I have 72v TC Max and find no output from battery by itself but if I take power from side charge port with battety installed on bike then I can power 72v to 230v inverter. But be safe! You can discharge a lot of power and cause damage if you do something wrong.

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