Hi.
I've been looking around and haven't found a reference to the batteries I have been gifted.
They are marked as INR18650-15U (?) - I have found other variants and it seems the letter at the end is a code for the max discharge rate but there doesn't seem to be a chart to reference this.
I would have guessed from the "-15" that these are 1500mAh cells. Out of the ~125 cells tested so far for capacity, they all exceed this value and are in the 1500-1600mAh range. Charge tested with Opus BT-C3100 @ 1A.
Did I just get lucky and have got really good cells? I was told these batteries have been sitting around for a year or so, but I can't seem to find any reference anywhere except alibaba etc for INR18650-15U cells. I don't even know what these came out of - I have a few boxes of loose cells to work through and sort/charge/test/discard.
I'll take some better photos on the weekend of the cells for the cell database, but wanted to know if anyone else had come across them or if I have got some other generic cell under the wrapper.
I've been looking around and haven't found a reference to the batteries I have been gifted.
They are marked as INR18650-15U (?) - I have found other variants and it seems the letter at the end is a code for the max discharge rate but there doesn't seem to be a chart to reference this.
I would have guessed from the "-15" that these are 1500mAh cells. Out of the ~125 cells tested so far for capacity, they all exceed this value and are in the 1500-1600mAh range. Charge tested with Opus BT-C3100 @ 1A.
Did I just get lucky and have got really good cells? I was told these batteries have been sitting around for a year or so, but I can't seem to find any reference anywhere except alibaba etc for INR18650-15U cells. I don't even know what these came out of - I have a few boxes of loose cells to work through and sort/charge/test/discard.
I'll take some better photos on the weekend of the cells for the cell database, but wanted to know if anyone else had come across them or if I have got some other generic cell under the wrapper.