Old 10-02-2009, 02:39 AM #1
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Default how long to charge a lithium-ion battery?

My "Spyder I Pro" laser suddenly became very dim, and I've been using it a lot lately, so I figured that the battery is dead. Does anyone know how long does it take to charge a (No. 18650) lithium-ion battery?

I'm using the charger that was included with the laser, by the way.


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Old 10-02-2009, 02:48 AM #2
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Default Re: how long to charge a lithium-ion battery?

sometimes 6 hours if batt is completly dead
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Old 10-02-2009, 10:54 AM #3
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Default Re: how long to charge a lithium-ion battery?

Quote:
Originally Posted by john_lawson View Post
sometimes 6 hours if batt is completly dead
Lithium Ion batteries should never be completely dead, almost all of them have under-voltage protection, which will cut the power if the charge gets too low. Fully discharging Lithium Ion batteries reduces their lifetime and capacity dramatically.
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Old 10-02-2009, 03:35 PM #4
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Default Re: how long to charge a lithium-ion battery?

Yeah, if it's completely dead, you'll never charge it again.
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Old 10-02-2009, 05:31 PM #5
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Default Re: how long to charge a lithium-ion battery?

Duration of charge has do do with the capacity of the lithium battery and the rate of charge
There is no standardized time to charge without varying charge current to adapt to every type of lithium battery

More info would be helpful
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Old 10-13-2009, 08:15 AM #6
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Default Re: how long to charge a lithium-ion battery?

A lot of info here.. apparently typical charge time for most chargers is around 3hrs.

Charging lithium-ion batteries
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