need a battery that outputs 9v in a maglite

[fireluvrandrew]

is there a rechargeable battery that i can put in either a mag 3d or 4d? (prefereably te 3d), my malkoff quad just isnt running as it could be with only 6 volts, and max is 9 so i want to max it out. PLease help thx

 

[rizky_p]

well you can fits 9AA at least inside 3D tube without boring. Using some 9AA->3D adapter should help.

thanks.

 

[linterno]

well you can fits 9AA at least inside 3D tube without boring. Using some 9AA->3D adapter should help.

thanks.

9AA could be a problem. 9x1.5 = 13.5v on alkalines and 9x1.2 = 10.8v on NiMh. Better use a 6AA -> 2D converter. 9v are required

 

[Fallingwater]

8 x NiMH AA and a spacer?

 

[Gene43]

Still too much voltage. I would use no more than 7 cells max.

 

[Marduke]

Seeing as it's already operating in a buck configuration on 6v, exactly how will 9v help it? It's already reducing the voltage to around 3.7v anyhow.

 

[fireluvrandrew]

Seeing as it's already operating in a buck configuration on 6v, exactly how will 9v help it? It's already reducing the voltage to around 3.7v anyhow.

what do you mean? sorry i dont know anything when it comes to voltage and stuff, i just know gene said i can run up to 9v on it, and its only at 6 right now, so i figure more volts more power right??



Also, is there any prefab batteries, or battery adapters at 9v i can buy? like i said, new to this, so im blind if it comes to constructing my own
thx

 

[Mr Happy]

what do you mean? sorry i dont know anything when it comes to voltage and stuff, i just know gene said i can run up to 9v on it, and its only at 6 right now, so i figure more volts more power right??

That's not necessarily the case. The circuit in the Malkoff device regulates the power to the LED to the right amount and then takes from the batteries just what it needs. Once the light is running at normal brightness a higher voltage will not increase the brightness, but adding more batteries using a bigger body will increase the run time.

 

[mdocod]

sorry fire, more volts doesn't always mean more light.

 

[fireluvrandrew]

then how do i increase brightness?

 

[Mr Happy]

then how do i increase brightness?

If the device is not faulty and it is running with the designed batteries (3 or 4 fresh D cells?), then what you see is what you get. It should be brighter than a standard Mag bulb. What makes you think it is not running as bright as it should be?

 

[fireluvrandrew]

If the device is not faulty and it is running with the designed batteries (3 or 4 fresh D cells?), then what you see is what you get. It should be brighter than a standard Mag bulb. What makes you think it is not running as bright as it should be?

given its very bright, just now quite what i expected i guess, the 3d single dropin seemed brighter

 

[Mr Happy]

What device do you have exactly? It seems from the specs that the 2,3,4 D drop-in would be slightly brighter on a 4D light than on a 3D light, so higher voltage would help a bit. But you say it can go up to 9 volts? That suggests a 4,5,6 D drop-in, and for the best brightness out of one of those you should use at least a 4D Mag, if not a 6D Mag. Maybe this is why you are disappointed? It's always important to use the right drop-in for the size of light you have.

 

[fireluvrandrew]

What device do you have exactly? It seems from the specs that the 2,3,4 D drop-in would be slightly brighter on a 4D light than on a 3D light, so higher voltage would help a bit. But you say it can go up to 9 volts? That suggests a 4,5,6 D drop-in, and for the best brightness out of one of those you should use at least a 4D Mag, if not a 6D Mag. Maybe this is why you are disappointed? It's always important to use the right drop-in for the size of light you have.

its the malkoff quad, its in a 4d right now

 

[Mr Happy]

The Malkoff Quad (excuse me a moment...it costs how much??? ) is a 4,5,6 D drop-in. It looks like it may struggle to give full brightness on 4 D size alkalines -- a 6 D light would definitely be more suitable.

So it looks like more voltage may indeed help in this case. You could either use 4 D-size NiMH batteries, which would handle the enormous current draw much better, or you could use a 6AA to 2D adapter in a 2D host and use AA NiMH batteries like Eneloops. (A good quality 6AA to 2D adapter like the one from FiveMega might be advisable rather than a cheap one, given the high current draw.)

(Also be aware that 6 AA rechargeables will only give you about 30 to 45 minutes of run time at regulated full brightness. If you want the 2 hours of full brightness you will have to get a 6 D host and put 6 D cells in it.)

 

[fireluvrandrew]

so no options for using a 3d size mag?

 

[Mr Happy]

so no options for using a 3d size mag?

Yes, you could use the 6AA to 2D adapter and put a dummy D cell in as a spacer. But since you have spent $250 on the Malkoff, spending an additional $18 on a Maglite of the right size doesn't seem like much to bother about.

 

[fireluvrandrew]

its more of a size issue than money issue, i have a mag 4d right now, but its to big, i like teh 3d

 

[Mr Happy]

So get a 2D and use a 6AA to 2D adapter with NiMH rechargeables. But see my edited note about reduced run time at the foot of post #15 above.

 

[Tidra]

use 2D and this battery,...

http://www.kaidomain.com/WEBUI/ProductDetail.aspx?TranID=3985

I know it is not 9V but it is close and more runtime,...

or

you could quad bore your Mag and use 12AA to 3D, but you must rewire the battery holder to make 6s2p,... double the run time in compare with 2D

LP
Iztok