I charged some 3.6 V nominal button ells -see attached pic .I had them set up as a 3 in series 12V backup battery .
I must have got them 2 hot cause the first in a series line of 3 exploded suddenly shooting its contents just past the side of my head and it landed about 6 foot high from a 3 foot benchtop. I turned everything off and moved the battery pack away . After about 5 minutes a second one exploded which was the last in series . Only the middle survived and it measured 3.8V about ten minutes after turnoff.
I'll try to attach a photo . The explosion was twice as loud as an exploding cap and material ejected could definately get you in the eye. It blow straight up blowing the caps off the can upwards.
Second pic is before I found the lithium/copper ejected material which is alongside in the first.
This button cell is a bit dangerous . They are branded " Great Power". I agree with that
I must have got them 2 hot cause the first in a series line of 3 exploded suddenly shooting its contents just past the side of my head and it landed about 6 foot high from a 3 foot benchtop. I turned everything off and moved the battery pack away . After about 5 minutes a second one exploded which was the last in series . Only the middle survived and it measured 3.8V about ten minutes after turnoff.
I'll try to attach a photo . The explosion was twice as loud as an exploding cap and material ejected could definately get you in the eye. It blow straight up blowing the caps off the can upwards.
Second pic is before I found the lithium/copper ejected material which is alongside in the first.
This button cell is a bit dangerous . They are branded " Great Power". I agree with that
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