LM 21Watt LED wont turn on...

[Ulfhedinn]

LM 21 Watt LED 10Amp LiPo

Picked it up brand new in 2012? Put 40ish dives on it. "Wish I could say more"

Been in my dive box of extras for close to 3 years untouched.

Was put away clean.

Went to use it. Charged it.

Wont turn on. IDEAS before I send it in for LM to take a look.

 

[grantctobin]

Do you have a multimeter?

 

[Ulfhedinn]

Do you have a multimeter?

I do.. how shall I test?

 

[grantctobin]

What’s voltage on the battery?

 

[Ulfhedinn]

When I set it so 20DCV. Its tell me 12.65

 

[Ulfhedinn]

yep 12.65-69

 

[grantctobin]

I’d likely ship it to LM. While you could dismantle it and check different things to diagnose what is not working, it’ll end up in Joel/Corey hands at the end anyway.

 

[Ulfhedinn]

That's what I assumed.

 

[halocline]

My guess would be the switch. If you're super handy you could conceivably buy a switch from LM and try installing it, but if it hasn't been back to them since you bought it, it might not be a bad idea to spring for a new cord, gland, etc anyway.

 

[lucca brassi]

Can you drive light from power supply directly ?

Maybe battery pack wear out ? ( have voltage but have it capacity too? )

After many years in box I would cycle battery pack more times . ( Can you record charging/discharging cycle) ?