DX200 power consumption

[digital_blue]

My DX200 only runs for about 5 minutes continuous on 2 rechargeable CR2 800mah batteries(the ultrafire ones available on DX). How long should it normally last?

 

[john_lawson]

wow i would limit it to a 2 minute max run 5 is pushing it i believe

 

[digital_blue]

It's only putting out 145mw so I figured that pushing it a little longer shouldn't do any harm...

 

[john_lawson]

yea i have 2 one is 145 the other 155 :'(

 

[erdabyz]

Probably a bad contact with the batteries is providing a high resitance area draining your batteries very fast.
The first time i lighted mine i played with him for about 1 day and after that, batteries were at about 3.17V, almost full.

I disassembled the laser, reassembled it and.... 2 minutes later batteries were at about 2.05 volt, COMPLETELY EMPTY.

I checked the batteries and there was a small black area around thenegative contact, which is a blob of solder.

So i charged the batteries and reassembled the laser... this time it lasted for a week.

Check the negative contact and keep using the laser. Soon or later the problem will be fixed by itself.

 

[digital_blue]

I will try cleaning the contacts with acid flux or something. Should I try tinning the contacts?

 

[lasersbee]

Probably a bad contact with the batteries is providing a high resitance area draining your batteries very fast.
The first time i lighted mine i played with him for about 1 day and after that, batteries were at about 3.17V, almost full.

I disassembled the laser, reassembled it and.... 2 minutes later batteries were at about 2.05 volt, COMPLETELY EMPTY.

I checked the batteries and there was a small black area around thenegative contact, which is a blob of solder.

So i charged the batteries and reassembled the laser... this time it lasted for a week.

Check the negative contact and keep using the laser. Soon or later the problem will be fixed by itself.

If the resistance increases on the contacts.... it's like putting a resistor in line  
with your batteries and you would get less voltage going to the driver....
But it would not drain your batteries faster...  

I will try cleaning the contacts with acid flux or something. Should I try tinning the contacts?

If you use Acid Flux on any Electronic circuitry... you will be asking for trouble
down the line....  
Acid flux is corrosive and acts like battery acid.. once you run power through an
acid fluxed joint... corrosion even increases...  

I've got a few DX200 Dildas from 150mW to 322mW

Maybe your batteries are getting old and don't hold a full charge anymore... :-?
Voltage checked straight across the battery terminals is not a good indicator of battery capacity.. :

 

[digital_blue]

I just plan to use it on the spring contacts; not the actual electronics itself...

 

[lasersbee]

I just plan to use it on the spring contacts; not the actual electronics itself...

Just make sure you clean it of with a "base" like baking soda and water.

 

[rangedunits]

Coke soda work great to clean silver, alumunium and steel and give a fresh smell