hpd611
New Member
- Joined
- May 19, 2021
- Messages
- 7
Thanks for any feedback you have. I ordered and just received 4 120ah 3.2v LiFePo4 cells and a Daly BMS.
The short question is this: 1 of the cells is bad and tested .2 volts lower upon receipt, but only put out 77.4ah dropping off way sooner than the others. I have 15 total days to open a dispute on AliExpress. I've sent the seller a message. I'm wondering what to expect and if it's best to open a dispute right away or to wait? And if they say they will send another and they don't or it is bad, will AliExpress still help at all? I'll provide more info and photos below. Thanks a bunch for your time and for the knowledge shared here!
(I'm new to LiFePo4 in practice, but have done tons of research and have a strong background in electronics down to the component level.)
After charging and upon testing these cells as a battery, I was only able to get 77.4ah. At this time the BMS cutoff on the bad cell at 2.5 the pic shows my order info and the BMS as well as the shunt meter reading. I believe the cell is bad, just wondering what to expect from an AliExpress seller as far as a replacement goes?
The short question is this: 1 of the cells is bad and tested .2 volts lower upon receipt, but only put out 77.4ah dropping off way sooner than the others. I have 15 total days to open a dispute on AliExpress. I've sent the seller a message. I'm wondering what to expect and if it's best to open a dispute right away or to wait? And if they say they will send another and they don't or it is bad, will AliExpress still help at all? I'll provide more info and photos below. Thanks a bunch for your time and for the knowledge shared here!
(I'm new to LiFePo4 in practice, but have done tons of research and have a strong background in electronics down to the component level.)
After charging and upon testing these cells as a battery, I was only able to get 77.4ah. At this time the BMS cutoff on the bad cell at 2.5 the pic shows my order info and the BMS as well as the shunt meter reading. I believe the cell is bad, just wondering what to expect from an AliExpress seller as far as a replacement goes?