Chalo
100 TW
Last night, my cheap generic 48V 4A lithium ion charger started displaying a behavior I haven't observed before. After a couple days of using the bike and running through perhaps half of its battery capacity, I plugged in the charger and it began charging normally, with the red charge indicator LED lit and fan running. It did that for a couple of hours, as per normal, before going quiet. When I went to unplug the charger, I found that the green indicator LED wasn't steadily lit like it normally is, but blinking briefly, over and over. I assumed that the charger had failed in some way, so I got my brand new spare charger and plugged it in-- but it started doing the same blinking green light routine.
It reminded me of the hiccup mode on an old SLA charger, where it oscillates between charge and float modes as the battery approaches maximum voltage. But in this case the red charge indicator wasn't involved at all, and the green light made it look like the charger was restarting over and over.
The fact that both my chargers, one of them brand new, exhibited the same anomalous behavior at the same time makes me think the BMS must be involved. Does anybody have an idea what might be the matter? Thanks.
It reminded me of the hiccup mode on an old SLA charger, where it oscillates between charge and float modes as the battery approaches maximum voltage. But in this case the red charge indicator wasn't involved at all, and the green light made it look like the charger was restarting over and over.
The fact that both my chargers, one of them brand new, exhibited the same anomalous behavior at the same time makes me think the BMS must be involved. Does anybody have an idea what might be the matter? Thanks.