garybenade
New Member
- Joined
- Oct 1, 2019
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I received 2 of these units on Friday direct from Mecer, they state that they are still good for 1500 cycles.
I installed 2 in series for my 24V RCT trolley inverter and all seemed well until the first time the inverter kicked in and the house tripped and the inverter died
I inspected the batteries and found on with 0V
I have spare BMS's so I assumed worst case I would need to replace that, there is no way to open these batteries so I had to cut it open
The BMS supports WIFI but I could not connect to it or even detect it
I measured 0 volts across the battery terminals, so I removed it to inspect and found 4 dead and swollen cells
One of them was swollen on top, this one also has a clear sticker while the others have a blue ring (see photos, I don't know what these are but I assume they indicate cell failure?)
Are cells in this bloated condition safe?
And if so are they capable of another 1500 cycles?
I installed 2 in series for my 24V RCT trolley inverter and all seemed well until the first time the inverter kicked in and the house tripped and the inverter died
I inspected the batteries and found on with 0V
I have spare BMS's so I assumed worst case I would need to replace that, there is no way to open these batteries so I had to cut it open
The BMS supports WIFI but I could not connect to it or even detect it
I measured 0 volts across the battery terminals, so I removed it to inspect and found 4 dead and swollen cells
One of them was swollen on top, this one also has a clear sticker while the others have a blue ring (see photos, I don't know what these are but I assume they indicate cell failure?)
Are cells in this bloated condition safe?
And if so are they capable of another 1500 cycles?