UL listed/safety certified lifepo4 parallel packs (consumer and commercial grade) do not have individual cell fusing.
If cells are matched, good quality, charged/discharged at similar c rate in similar ambient temperatures... I would imagine that they would last a VERY long time.. and that a shorted cell would be extremely rare..
But what happens when a lifepo4 cell shorts?
I have read that the pack will have reduced capacity, but can still work. I know that lifepo4 do not create enough heat to cause the typical thermal run away effect like NMC or NCA cells.. but how bad is the effects of a shorted lifepo4 cell in these instances? Is the pack unusable? Or does it still work, just at a reduced capacity?
I would imagine that the other cells in the pack would dump into the shorted cell, which is the norm in most parallel packs.
I have never seen a lifepo4 cell short. Anyone care to share their experience?
Really hard to find information on this. Have been reading battery safety studies and it's the same information that we have known for ages on this chemistry.
If cells are matched, good quality, charged/discharged at similar c rate in similar ambient temperatures... I would imagine that they would last a VERY long time.. and that a shorted cell would be extremely rare..
But what happens when a lifepo4 cell shorts?
I have read that the pack will have reduced capacity, but can still work. I know that lifepo4 do not create enough heat to cause the typical thermal run away effect like NMC or NCA cells.. but how bad is the effects of a shorted lifepo4 cell in these instances? Is the pack unusable? Or does it still work, just at a reduced capacity?
I would imagine that the other cells in the pack would dump into the shorted cell, which is the norm in most parallel packs.
I have never seen a lifepo4 cell short. Anyone care to share their experience?
Really hard to find information on this. Have been reading battery safety studies and it's the same information that we have known for ages on this chemistry.