Bafang M510 - Battery sleep mode, is it a thing?

[Wayne Pickering]

I have a new bike with the M510 and I have not ridden it much yet. The few times I have used it I have had trouble switching on the bike through the control unit on the handle bars. If I remove the battery and press the button on the battery for a few seconds and refit it to the bike, the bikes starts ok.

Does the battery have a sleep mode if not used regularly?

Thanks

Wayne

 

[Dado]

Yes, could be sleep mode, or some protection applied.

If this is a switch button, then it is hardware BMS turn off.

If BMS went to off state, should be still able to wake by connecting charger.

 

[Karamba!]

Yes, it is a thing. Currently shipped batteries come without sleep mode, hence you just switch the whole system on through the controller's remote.

 

[Dado]

Thats rare to have sleep mode in batteries. You need then push a button on a battery, right?

All good BMSes are drawing just a little current (micro amperes) so wont empty the battery so quick. And I dont like when I have to turn on battery and then motor.

 

[Karamba!]

Thats rare to have sleep mode in batteries. You need then push a button on a battery, right?

All good BMSes are drawing just a little current (micro amperes) so wont empty the battery so quick. And I dont like when I have to turn on battery and then motor.

That is my thought too. I expected that the operation of starting the Bafang motor would be like that of a big brand, that is, pressing the start button on the controller's remote and that's it. But I learned here that until recently one had to switch on the battery and then the motor. As I said, currently batteries come without sleep mode, hence without on-off switch and with a rubber cap for its hole

 

[Dado]

Yes, it is not good to have 2 power on buttons. So I am still shorting on/off cables inside dengfu battery. And the button using for a strong LED light. Over dc/dc from main battery.

 

[iscander13]

Yes, it is not good to have 2 power on buttons. So I am still shorting on/off cables inside dengfu battery. And the button using for a strong LED light. Over dc/dc from main battery.

Hi Dado, how do you short the on/off cable inside the Dengfu battery? I have an unsystematic shutdown or reboot while riding. I modeled this at home by quickly turning the battery off and on with a button. The motor reboots the same way it does while riding.

 

[Dado]

Mate, you do not need to be rocket engineer to short it.

1. Open battery (4 screws on connector side)
2. Cut 2 cables going to golden pins
3. Weld them together, add heatshrink
4. Close battery.

 

[iscander13]

Mate, you do not need to be rocket engineer to short it.

1. Open battery (4 screws on connector side)
2. Cut 2 cables going to golden pins
3. Weld them together, add heatshrink
4. Close battery.

Thanks, mate. Since I'm not a real electrician, it's always best to ask.

 

[Wayne Pickering]

That is my thought too. I expected that the operation of starting the Bafang motor would be like that of a big brand, that is, pressing the start button on the controller's remote and that's it. But I learned here that until recently one had to switch on the battery and then the motor. As I said, currently batteries come without sleep mode, hence without on-off switch and with a rubber cap for its hole

The battery on my new bike definitly shut down if I remove it from the bike. I have to hold the rubber button for 8 seconds (the green led with letters R G B on the end of the battery lights up while holding the button) then the bike will power up from the controller on the handle bars. Sometimes I have to do it twice. I am guessing on the 8 seconds because that is what seems to work but cannot find any official documentation about it.