Make a cordless drill battery holder?

I must make a cordless drill battery holder and I'm asking for help with the design.

I can't hack the batteries because they must fit into the charger and they might be used in cordless drills too.

How would you temporarily connect electrodes to the two battery terminals? Mine are shaped like typical cordless drill batteries with a cylindrical upper body that has a metal contact plate on each side of the top of that cylinder.

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._SS500_.jpg (the two side terminals, the other two terminals are used for charging)

I suppose some nonconducting springy material could be used for clamps. Any premade store-bought stuff that might fit?

Thank you.

Reply to
John Doe
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You be best served if you bought a new pack and hacked the old one. You'd be sure to have the proper fit for the contacts by doing so. Otherwise, that pack will be spent in about a year or so...you can hack it at that time unless you are going to rebuild it.

Are you trying to connect it to your vehicle?

Reply to
Lord Garth

I use cordless drill batteries to launch rockets. I made a holder by molding two part wood putty around the battery and fabricating contacts. It works great. If you make a mold remember the battery has to come out. Don't trap it. Make sure there are no dimension smaller than the battery as you go up and out. If your application is a one time event you could just solder wires to the terminals. The solder can be wicked off later.

Tom

Reply to
Tom Biasi

Would you be willing to buy three new Panasonic 12V 3.5AH batteries, make a high quality charger, and give them to me?

It's not going to happen.

Reply to
John Doe

I'd be willing to help you modify one but no, I'll not be making a gift of anything.

So why 3 packs? Just what are you trying to accomplish?

Reply to
Lord Garth

For one time use (meaning you need to set it up each time - you can't just pop batteries in and out) you can make a contact assembly with PVC pipe and screws and nuts.

Get PVC pipe that just goes over the nearrow end of the pack that has the contacts. Use screws and nuts to contact the battery, like this:

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Reply to
ehsjr

Duct tape, or equivalent. Remove with razor blade, or equivalent.

Reply to
z

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