lakeroadster
When in doubt... build hell-for-stout!
Anybody here using their cordless drill battery to power their launch controller?
Seems like it should work. Depending on whether it's NiCad or NiMh or LIon would affect how much current it can dump into the ignitors. They may not have enough juice to power a day-long club launch but should have plenty for a private day at the field.
Do you have a good way to make a connector to it?
I've used a 40v lawn mower battery to ignite seven engine clusters with success. Just be sure the rest of the circuit can handle the extra voltage without burning out. What voltage is the drill battery?
12 Volt. This will be for launching a couple rockets... and I have 2 batteries. Think retired guy launching a couple rockets, out in the middle of grazing land, not a competition / event.
When our club first began we launched all day on 12 volt nicad batteries. You’ll be just fine. An old charger base can be used as a connector/enclosure with a relay if you want to go that way.
I think he means that if you have a spare old charger that fits the battery, disassemble it, remove all the charging bits and rewire it so that it has output leads you can attach to your launcher. You could do the same with the battery holder on an old tool too. That way youre not jury rigging something to the connectors on the battery - which in many instances are just flat plates.
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