12 volt nicad charger

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luke
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12 volt nicad charger

Can you use a car battery charger for charging a 12 volt nicad battery from a cordless drill?

flydiver
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Different chemistry > different termination > not a healthy idea.

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WarHawk-AVG
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Yes, but it is manual charging…but you MUST monitor it contantly

http://batteryuniversity.com/learn/article/charging_nickel_based_batteries

Pretty much you watch not only the temperature but the voltage,

http://batteryuniversity.com/learn/article/charging_nickel_based_batteries

Quote:
When inserting a fully charged battery, the terminal voltage rises quickly, and then drops sharply to trigger the ready state. The charge in this case lasts only a few minutes and the cells remain cool. NiCd chargers based on the NDV full-charge detection typically respond to a voltage drop of 10mV per cell.

To obtain voltage drop of 10mV per cell, the charge rate must be 0.5C and higher. Slower charging produces a less defined voltage drop and this becomes difficult to measure, especially if the cells are mismatched. In this case, each cell in a mismatched pack reaches the full charge at a different time and the voltage curve flattens out.

You can manually charge them…but you literally have to sit there and monitor constantly…always better to use a charger designed for the pack

Charge pattern for NiCd Delta V look something like this
http://www.mpoweruk.com/chargers.htm

as battery fills up to maximum charge capacity voltage drops, then the heat builds up…if you monitor constantly and see the voltage drop, that is full charge..but like I said. you have to monitor constantly…chargers do that for you

Safe answer is ALWAYS get the proper charger…period!

Then of course there is the DIY method
http://www.instructables.com/id/Homemade-Cordless-Drill-Battery-Charger/...

As I said before…Safe answer is ALWAYS get the proper charger…period!

Bort
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IF you can find a 12V input charger for your 12V pack then i would recommend it, otherwise i would not

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xv-750
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Would do it right.

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luke
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What is a good value hobby charger for 12 volt nicad packs and 18650 li ion.

http://www.valuehobby.com/gt-power-c6-charger.html

Would this be ok?

CyrusAM
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I have this charger and it works great, I’d highly recommend getting one

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flydiver
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Trivial difference between the one you linked and CyrusAM. The one in your link looks a tad better ‘on paper’.

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CyrusAM
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Sorry, my last suggestion was poorly phrased, I meant that I had one similar from them and I’m happy with the charger itself and value hobby. Didn’t mean to imply one model or another is better. If you know how to finesse all the settings you can do anything you’ll come across with that charger.

Socorro Search and RescueI wear my sunglasses at night