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Laser just received but fades after 15 secs!, could it be battery?

waterface

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Hi

What could this be?

The laser is a power rock 200mw green from o-like.

The laser they sent didn't come with a battery as the laser was a replacement for one that malfunctioned, so i used the 18650 lithium rechargeable one that i have.

This is over a year old. Could this be the problem & how can i find out? The battery hasn't been used for a few months, so i put it on charge & surprisingly only took a while for the charger to go from red to green, i then tried it for a few burn tests & the laser dimmed. I then put the battery in charger again & it seems to want to charge again as the light is still red on charger!

Help appreciated
 

sinner

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You just answered your own question, try a new battery first! if it persists then it could be anything..
 

waterface

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I will have to i guess!


Can a battery need a double charge! I've read on here a thread about dim lasers & battery issues!

The battery after no use for 2 months or so needed surprisingly hardly any charge time, less than an hour. Then i used the laser for maybe a minute in short bursts & the battery is now back on charge & has been for 30 mins, thats after 1 min of use after 1st charge! Old battery?

The battery is an UltraFire 18650.
 
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sinner

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Yes try another battery and another charger altogather if possible, so you wouldnot have any doubt otherwise!
 

AnthoT

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It's probably the batteries or the green laser module inside as some of those green modules are unstable.

-Anthony
 

waterface

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I don't have another battery or charger & don't want to buy in case the battery is the problem!

This thread sounds similar. http://laserpointerforums.com/f65/laser-getting-dimer-69632.html

Surely if i put a battery on charge after a minutes use & the charger is back on red & needs another half hour for the charger to go green again sounds like a battery prob. Like a 'surface charge' like Aryntha says. Also, when the charger has gone green, i plug the charger out & then plug the charger back in again & the charger light goes red again! Could it need multiple charges as its not been used in a while?

AnthoT, the laser arrived this morning.
 
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