[kellyhound]

but didn't.

[Mr.NoCredit]

At least he prevented it from smashing to the ground. That thing, whatever it is, is extremely heavy. He saved it from severe damage even though he wasn’t able to stop it from falling.

[William May]

That looks like a NICAD aircraft battery. They use these in Learjets because they will put out 1100 amps for starting the jet engines. (Your truck starter takes 40 amps when cranking.) They are also used in most airliners, an any aircraft that have a 28 volt electrical system. They weigh about 80-100 lbs each. The case is stainless steel.

They also have normal lead-acid batteries they use if they don't want NICADS. NICADS are very tough, and deliver high power very easily, but they also can go into a "Thermal Runaway" where the cells start short circuiting amongst themselves, which can lead to an explosion. Lead Acid aircraft batteries for aircraft are not as tough or powerful, but they also don't explode when they go psycho on you.

Lead Acid aircraft batteries usually have a pink or green plastic case that holds them. NICADS need a stainless case, because they are EXTREMELY corrosive, and no other material can contain them. NICADS can't have plastic cases, because they will arc-weld their way right through the plastic case if they were in plastic.

I think the guy put the battery on a package cart that is rated for 20-25 lbs, and it instantly collapsed. The battery will now require testing and opening the case to check the cells for damage, which will cost a couple hundred dollars. If you drop an airplane battery, you can't put it in an aircraft. (Same as with aircraft spark plugs. If you drop a sparkplug on the cement hangar floor, you just throw it away. It's done, right there)

[kellyhound]

machining parallel?

[kbt3168]

Whatever that is, I’ll bet it doesn’t work anymore.