Battery

[Ash123]

Does anyone have an answer to why my BMS is flashing, battery stopped charging and has a very low output, there is no on and off button on this battery, it's off a longbow e bike, I'll attach a video if I can, was thinking woukd a battery balance charger boost it up, just thought worth a try cos I've left the bike in the shed for a while and it's very cold in there,

 

[saneagle]

Does anyone have an answer to why my BMS is flashing, battery stopped charging and has a very low output, there is no on and off button on this battery, it's off a longbow e bike, I'll attach a video if I can, was thinking woukd a battery balance charger boost it up, just thought worth a try cos I've left the bike in the shed for a while and it's very cold in there,

The only way to be sure is to open it and measure the voltages on the multi-pin connector on the BMS.

 

[matthewslack]

Does anyone have an answer to why my BMS is flashing, battery stopped charging and has a very low output, there is no on and off button on this battery, it's off a longbow e bike, I'll attach a video if I can, was thinking woukd a battery balance charger boost it up, just thought worth a try cos I've left the bike in the shed for a while and it's very cold in there,

My battery charger will not charge the battery if temperature is too low. It is fine when it warms up. Maybe yours is doing something similar.

Don't leave it charging overnight obviously, but you could bring the battery indoors overnight and see if it charges OK in the morning.

 

[Ash123]

The only way to be sure is to open it and measure the voltages on the multi-pin connector on the BMS.

Thanks I'll check that next

 

[Ash123]

My battery charger will not charge the battery if temperature is too low. It is fine when it warms up. Maybe yours is doing something similar.

Don't leave it charging overnight obviously, but you could bring the battery indoors overnight and see if it charges OK in the morning.

Thanks that's worth a try

 

[Ash123]

Evening guys,
I'm gonna try and upload of my BMS flashing, if not I'll attach a picture, now on my digital multimeter it says just over 40 volts but that's without the charger, does that sound right, put the charger on then the lights flash slower but after about 30 seconds charger goes from orange light to green and the lights flash quicker again, I'm not that technically minded so excuse my lack of know how

 

[soundwave]

Evening guys,
I'm gonna try and upload of my BMS flashing, if not I'll attach a picture, now on my digital multimeter it says just over 40 volts but that's without the charger, does that sound right, put the charger on then the lights flash slower but after about 30 seconds charger goes from orange light to green and the lights flash quicker again, I'm not that technically minded so excuse my lack of know View attachment 61723how

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batt cell voltage connector is melting

 

[saneagle]

How many LEDs are there - lit and unlit?
What is the actual voltage of the battery immediately after taking it off the charger when the charger shows fully charged?
Is this something that didn't happen before, or did you get it like that?