max_m
1 mW
Apologies, I'm sure this is covered in another thread - but not an easy topic to search for.
I recently bought a used Bionx SL 350 HT XL system, it's been working ok but with moderate range (I was considering getting new cells).
A few days ago I noticed the display showed low battery (one bar) even if it had been plugged in overnight. It still seemed to have enough power for my ride (about 15miles with some big hills).
Now when I plug in to charge, the ring turns red for a few seconds then go off, and the battery does a little alarm chirp. Same thing when I touch the charge port.
I measured charger voltage to 25.8V. It draws almost no current when plugged into the battery (measured with a Kill a Watt).
I'm not sure how to measure battery voltage without opening.
The system still turns on, but showing battery as empty. Diagnostics mode on the bike display shows 00441 in the lower corner when not pedalling.
I recently bought a used Bionx SL 350 HT XL system, it's been working ok but with moderate range (I was considering getting new cells).
A few days ago I noticed the display showed low battery (one bar) even if it had been plugged in overnight. It still seemed to have enough power for my ride (about 15miles with some big hills).
Now when I plug in to charge, the ring turns red for a few seconds then go off, and the battery does a little alarm chirp. Same thing when I touch the charge port.
I measured charger voltage to 25.8V. It draws almost no current when plugged into the battery (measured with a Kill a Watt).
I'm not sure how to measure battery voltage without opening.
The system still turns on, but showing battery as empty. Diagnostics mode on the bike display shows 00441 in the lower corner when not pedalling.