sunshine_eggo
Happy Breffast!
That's what she said?
What was your worse DIY solar mistake ever?
- Thread starter Mattb4
- Start date
That's what she said?
Nobodybusiness
Solar Sponge.
That’s what I did except a little bigger. 240vac 100 amp.
Building with inverters/ batteries is 200’ away.
ArthurEld
Solar Wizard
I was rushing tightening busbars with an un insulated ratchet and I created a major short.
It scared the crap out of me and I dropped the wrench. The short didn't stop. Sparks were flying like someone was welding the top of my battery.
I reached in a grabbed the wrench and it stopped. The wrench and one cell were destroyed.
The fuse didn't blow. You can still have one hell of a fire creating short even if you have a class T fuse.
It scared the crap out of me and I dropped the wrench. The short didn't stop. Sparks were flying like someone was welding the top of my battery.
I reached in a grabbed the wrench and it stopped. The wrench and one cell were destroyed.
The fuse didn't blow. You can still have one hell of a fire creating short even if you have a class T fuse.
ScrotpusGobbleBottom
Corn Pop was a bad dude.
I always wondered what this would look like. That sure is unfortunate.
Aridom82
Learning addict
I managed to short a jk bms in my first attempt. It was like lighting fireworks inside the house, the transistors exploding like firecrackers.
Adam De Lay
Solar Wizard
I was laying out my brand new lifepo4 cells for my 48v, DIY battery bank. Everything looked good, so I started laying the bus bars on top to get the physical connections all done.
With a shakey hand, I laid the first bus bar down. Whew, nothing happened. Though to myself, this should be easy. Went to lay the second bus bar down and sparks started flying everywhere. The only thing that stopped the sparks was my flailing hand happened to knock the bus bar off the terminals. I had a brain fart on where I was supposed to lay the bus bars. Your not supposed to have 2 bus bars connecting all the terminals between only 2 cells…
With a shakey hand, I laid the first bus bar down. Whew, nothing happened. Though to myself, this should be easy. Went to lay the second bus bar down and sparks started flying everywhere. The only thing that stopped the sparks was my flailing hand happened to knock the bus bar off the terminals. I had a brain fart on where I was supposed to lay the bus bars. Your not supposed to have 2 bus bars connecting all the terminals between only 2 cells…
Wiring last MP4 connector for my ground mount with 2 strings of 7S in parallel (450vdc) no cutoff yet. I had trimmed end of cable in my hand while holding other MP4 to connect to. To be sure of correct connector to crimp on wire I inserted it into MP4 to check correct fit!!!!!!!!!!!!! Big jolt and I threw everything. That hurt! Felt pretty stupid. I always turnoff AC when working don't know what I was thinking?
Dang it. That's it. Class Ts as bus bars.
hwy17
Anti-Solar Enthusiast
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Bluedog225
Texas
I am putting this together. It sits on top of the battery inside a metal locker. No way for it to slide off side to side. Close as I could get to failsafe.
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Daddy Tanuki
Solar Wizard
made by knipex i am sure that costs a pretty penny. think I will just plasti dip mine and save the cost
wiseacre
Solar Addict
What was your worse DIY solar mistake ever?
Thinking I was done
Aridom82
Learning addict
Yep, you can chop some salami on it too while doing the wiring
This is exactly the route I went, for exactly those reasons.
ScrotpusGobbleBottom
Corn Pop was a bad dude.
Do you mean connecting input and output of bms as the short or connecting v+ to one of the sides?
ruralsolar
New Member
Yup! Thankfully no damage and everything still works as expected and at capacity.
featherlite
Solar Enthusiast
I learned that exact same lesson about two minutes after I opened my first box of 280Ah cells. Providentially, the end of the bus bar never made full contact with the second terminal. The spark left only a very tiny divot off to the side of the contact surface.
OffGridForGood
Catch, make or grow everything you can.
SOPPRESSATA is ready!Yep, you can chop some salami on it too while doing the wiring
(and turned out very nice this year, good dry January).
42OhmsPA
What's in a title?
I love soupie from the coal region, recipes generations old.
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