Maglite charger - voltage?

Torbjorn · Jul 31, 2016

I have an old Maglite (Magcharger, upgraded to LED-bulb), on this flashlight the battery has now died.
It's supposed to be 6.0V but is just under 3V.

I have done some testing and see that my wall charger is supposed to put out 14V, which makes sense since it also supplied with a car charger and there it's also 13-14v.
But my charger puts out 24V(!) and I can't find any data if this is normal or not.

Question:
Does anyone here have a charger/cradle and could measure their voltage?

The wall charger I have, that I measure 24V out from:

R4Igc74islpm2HMCbh44IKh9pKTpaRdSce92GNWzi8hAWhMSiskQFTv3rQfihFsrqWjGPYlSjIf5rzbG0w07qPzUmi3OLHv8fbDIXy1DvlhjEiesH0aIzyr9jUx7ZOrF9r5SAq3mBc8hebhJ55h9ACPd5P86Vjvbu6KfaMyswYZ_GAAFue2bmWcR9g9AadCIe9K-yRicGOp9DC22mYpjsB7sMD6XRAXhtHrB2Ws_dc9CjEfSgY9gnf0dyRdXmuwbEFo2ZyiBRtJacdqXEgfML4oMxOnAcjQqf_nKRC_ynSn9gJrLW4685SGmlj6_VT3-WdzTXV35jhDUiO6KRiBJnQK-xA4vkRGZE72xKLDYhJ9ouZ-_pHC2j5BZuUzIg2ke4IoPRsEObgi25jELGHoED--H9OjpOXDwFGVQigBB7twGZlBgFhmMprPHvNreu8WvrCxqtLBWiZ4cOKEFLaBtGuunPkwASrVSxJmZuCBjZVHWQXhg8SLthEQvGUvrV7hK0oEuAsDUJYjHVLDXkJz9Zi1RVhNmK-ONPmQsaMiIBlhlMKKcr7Z5UQ5uo9jo0YJAKb_LzNXJ2oBo250-kH3Z7q1bQuRvdniF=w1434-h1075-no

The charging cradle, measure 24V from the two gold contact points:

Zvj69snm5peXy_yxtryZZ7km8pjOTNKl3jEzrOFlMKJoLjeHKoJl-6wkCkTum5_h8pzq63GPqNvXqORNp-sLyS7hCSo4mrs1fPosvALApCTK3mlfe77LP0nTosOwXHMynQtOFWjcndIC0FLe6WcC9hQfynIHN1vQEd6Tk5GA4oLATABO2ECZkpRDHED-w3Mcs5pOpBHeNCv-XuogjgZK8lunwNTmHQHJWY-raIvA-XggtKa9bvCLBktyncbG3d3cpZB-1t_mJL8UzKKs2_xca4PP9ug5RuQLzhWITBXGeurcgXoAIp0lEMmKN9TxSgbYoqjMdwJvp7TcCK1ol-Z0r2yz9o2lSTRGuNcA9FbVmghsHumHwfIh4WsrKJnkvcOqgKcye7DHfYaUslIICEzLzUViFKmSRRubrUjCyi61-YcH30saJu4hoje0w9uU02GfDY8kaF56mygm1XgTarRkWTOoNxvTpsvuLJVALYlaQ2tqA6dilsmIwdADjopPon_ar3wDN3mp1vfA82p6IzvhZM1cwLta1zdqJAPi-Y5RYEh-Ab-CZJCAxUDKPLVhMDlb8KhpaS4QWwB6xv3gPAoGpOCkrEjrIQk1=w1434-h1075-no

fivemega · Jul 31, 2016

Torbjorn said:
I have an old Maglite (Magcharger, upgraded to LED-bulb), on this flashlight the battery has now died.
It's supposed to be 6.0V but is just under 3V.

I have done some testing and see that my wall charger is supposed to put out 14V, which makes sense since it also supplied with a car charger and there it's also 13-14v.
But my charger puts out 24V(!) and I can't find any data if this is normal or not.

Question:
Does anyone here have a charger/cradle and could measure their voltage?

The wall charger I have, that I measure 24V out from:

The charging cradle, measure 24V from the two gold contact points:

I am measuring about 19.2 volts from charging cradle contacts.
Voltage of wall charger or charging cradle does not tell you much because cradle has constant current control of about 220~250 mA which will charge NiCad battery pack in 16 hours.
If your battery doesn't take charge, then you will need a new battery.

Torbjorn · Jul 31, 2016

Thank you for checking!

Was afraid that my charger was the reason for the battery dying. Then I will try to order a new battery and hope keep on working

snakebite · Aug 2, 2016

replace battery in your meter.cheap ones like harbor freight freebies are the worst for this.
unloaded wallwarts are usually high but yours is too high.

Torbjorn said:
I have an old Maglite (Magcharger, upgraded to LED-bulb), on this flashlight the battery has now died.
It's supposed to be 6.0V but is just under 3V.

I have done some testing and see that my wall charger is supposed to put out 14V, which makes sense since it also supplied with a car charger and there it's also 13-14v.
But my charger puts out 24V(!) and I can't find any data if this is normal or not.

Question:
Does anyone here have a charger/cradle and could measure their voltage?

The wall charger I have, that I measure 24V out from:

The charging cradle, measure 24V from the two gold contact points:

Torbjorn · Aug 3, 2016

Hmm.. I can double check my meter (and meter/check with a reference I know the voltage of).
If the wall charger is of a constant current type, I could check the mah current with a clamp meter since it's stated what that should be.
Think it will be hard(er) to meter the voltage during a charge, without making something that exposes both wires.. don't have the maglite here right now so will have to post results later.

Torbjorn · Oct 27, 2017

Necro posting, yes, but though a update was good for anyone later having the same problem.
I bought a battery and everything was good to go. Since the charger is of constant current type, it will start with a higher voltage when the battery is empty, this is normal.

bykfixer · Oct 27, 2017

Heck yeah bro!

Thanks for the update. Hope to see ya around the board.

Maglite charger - voltage?

Torbjorn

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fivemega

Flashlight Enthusiast

Torbjorn

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snakebite

Flashlight Enthusiast

Torbjorn

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Torbjorn

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bykfixer

Flashaholic

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