I am relatively new to the world of Ebikes and have purchased a used lithium battery for an ebike. The owner wasn't sure of it's condition, but thought it had come with a golden motor kit (golden motor is handwritten on the side of the aluminum case). A picture of the case is below (a square prism about 95 x 95 x 400 mm). The seller originally said he did not have the charger. I took a chance, and on arrival the battery read 36v so I think that was good. However I am not sure how to charge it. It does not appear to have a charging port. Instead it has a computer-type male output port on one side and a 15 pin male circular port on the other (see second picture).
He did send a charger with the package that had a computer-type AC port. After verifying voltages on the male and female AC ports on battery and charger and verifying charger was roughly 42v out, I plugged it in thinking it was the "found" original charger and you must charge through the outlet port. Immediately heard (and smelled) a fzzt taking me back to my high school electronics class.
I took the battery apart. It appears to be composed of 12 cylindrical cells in blue plastic shrink wrap. Cells appear to be about 36mm in diameter and maybe 110mm long. I can trace the positive and negative output port wires through fuse and key/lock to where they enter the wrapped battery at the top. There appear to be about 12 smaller gauge black wires going to the 15 pin circular port.
I did not see a computer board for a BMS inside the metal casing. Could be in the battery wrap, but can't tell and don't really thinks so.
Does anyone know if ebike batteries were made that rely on some external sensing device for the BMS that would plug into the 15 pin port and might alert or otherwise feed a charging algorithm? Does anyone know where to find a charger to work with a battery like this? Or, it is possible that it was designed to be charged through the outlet port somehow with the 15 pin port for diagnostics??? (and the charger shipped might just be the wrong one). Any help or suggestions for charging would be appreciated.
dwini
Pictures belowView attachment IMG_1590_resized.jpg
He did send a charger with the package that had a computer-type AC port. After verifying voltages on the male and female AC ports on battery and charger and verifying charger was roughly 42v out, I plugged it in thinking it was the "found" original charger and you must charge through the outlet port. Immediately heard (and smelled) a fzzt taking me back to my high school electronics class.
I took the battery apart. It appears to be composed of 12 cylindrical cells in blue plastic shrink wrap. Cells appear to be about 36mm in diameter and maybe 110mm long. I can trace the positive and negative output port wires through fuse and key/lock to where they enter the wrapped battery at the top. There appear to be about 12 smaller gauge black wires going to the 15 pin circular port.
I did not see a computer board for a BMS inside the metal casing. Could be in the battery wrap, but can't tell and don't really thinks so.
Does anyone know if ebike batteries were made that rely on some external sensing device for the BMS that would plug into the 15 pin port and might alert or otherwise feed a charging algorithm? Does anyone know where to find a charger to work with a battery like this? Or, it is possible that it was designed to be charged through the outlet port somehow with the 15 pin port for diagnostics??? (and the charger shipped might just be the wrong one). Any help or suggestions for charging would be appreciated.
dwini
Pictures belowView attachment IMG_1590_resized.jpg
