Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5
Pack failure questions
#11
I'm now 99% convinced that some, if not all 32 dead cells with intact fuses drained past 0V and got reverse charged.
See this for a quick explanation (0:20 ~ 1:10):


Charging the battery in this state could have started a fire.

Takeaway from this incident should be:
1.) properly wire in a BMS so that it can cut the circuit automatically without human intervention
distant 2.) don't undersize cell fuses (don't oversize either)

Mixing batteries of difference capacities is not a big issue as long as you take the differing current per cell into consideration.
Reply


Who read this thread?
55 User(s) read this thread:
daromer, Sean, mike, Majorphill, Korishan, Frnandu Martiński, jdeadman, wim, watts-on, jesusangel, Hanssing, Stefaan De Ridder, BlueSwordM, Geek, floydR, ChrisD5710, Oz18650, djuro, Jez O'Hare, gpn, Chablis_m, rodagaster, Crimp Daddy, jonyjoe505, Redpacket, Ibiza, Oliman, Bubba, Cherry67, 100fuegos, Katarn_89, chuckp, Shawndoe, Wolf, Bastler_Ro, Scottietheyoung, Generic, stevelectric, ajw22, kevinjaye, OffGridInTheCity, nathan173, Dutchman, Richard, Overmind, ma3006he, Rubert, energy_man, juanjo57, ben teker, Regalo, 18650mb, hans dampf, ORM, Bobthebuilder

Forum Jump:


Users browsing this thread: 1 Guest(s)