Q8, PMS SEND TO THOSE WITH ISSUES BLF soda can light

Wow all this talk about my picture using metal calipers. I’ll admit I almost measured the cell bare but then realized why that would be bad and put a small piece of paper on one side. The picture you see is after measurement with the caliper resting on the table (not reaching the positive terminal)

Apart from the safety issues, a fat spark could ruin the precision ground surface of the callipers, spoiling them for precision use. Put a piece of e.g Kapton tape, or ordinary Sellotape on one end first.

And do treat car batteries with respect, inside they contain an explosive atmosphere of hydrogen and oxygen. If the battery has been over-charged and “boiled” the electrolyte (acid) heavily, there may little (but highly concentrated) acid left, and most of the volume filled with explosive gas. Abuse one with e.g. a short and if an internal spark happens e.g. when a bit of the lead inside melts, or an external spark ignites lingering hydrogen, kaboom ! A substantial explosion, happened to a neighbour, car bonnet blown off and conc. sulphuric acid sprayed everywhere. Before attaching leads, ventilate thoroughly in case there is any hydrogen lingering around.

Modern “sealed” ones are safer, they have a catalyst inside to recombine the H2 and O2 to water, but it is a slow process which does not keep up with heavy charging currents, e.g. after a battery has run low, then been recharged on a drive by the full output of the alternator.

Hydrogen has one of the widest range of flammability limits, so is an extremely dangerous gas to have lingering around. And when generated by electrolysis inside a lead-acid battery the perfect explosive mixture is produced.

Foldable Q8 Diffuser made by wax paper.

> inside a lead-acid battery the perfect explosive

Capable of throwing sulfuric acid all over the area, too.

It carries a “do not muck with this” warning

Talk about the B in BLF :slight_smile:

Anyone remember where to find the post where a 3d printed lantern diffuser was featured, with a link to the program? A friend of mine just got a printer today and I can’t seem to find the post with thread searches.

Is there a post with the links of the protos’ reviews ? Just curious

thanks

That’s the one! Thanks a lot.

By the Accountant’s Recommendation :smiling_imp: :smiley:

How do I get that quick Link/cheat sheet in Englsh?

It’s here. :slight_smile:

BG paid back the money on PP so all it fine somehow.
The last Q8 i ordered is already shipped. The first is on it’s way.
Back on track. :slight_smile:

Thanks but it doesn’t appear to be the same thing. I am not only not a flashlight guru I not very techy either.

Banggood is straight as a die in my experience.

I have cancelled orders there for a PayPal refund and seen it done within hours. Glad yours went through. Holidays maybe ? I could mention “first world problems and impatience” but I won’t :wink:

It should be very close :wink:
The Joechina cheat sheet is designed to be printed and folded and kept in the light the other is designed for a A4 paper.

patmurris, what a relief!

Argh… screwed by the post office… My lights show delivered and I saw the postman drive by so they should have been in the mailbox. Nothing. Nada. :person_facepalming: :frowning:

You better check with the USPS asap then. Cause if is shows delivered on tracking, it probably was delivered……just not to you. :frowning:

I have run into this three times thru the years. Thankfully each package was delivered to an honest person all three times & I got them the next day.

Delivery confirmation is worthless in cases like this. It only shows the package was scanned & delivered…. not where.

Good luck……

Somewhere in CA there’s a USPS postman with the brightest light in town… :smiling_imp:

:smiley: :smiley: :smiley:

I’m sure you’ll get it sorted… :wink:

Unfortunately it’s Saturday and the post office is closed… It will have to wait till Monday… Best case scenario is it got put into the wrong box and an honest neighbor will bring it by. We have a the multi box for the neighborhood setup with 2 large boxes for packages.