What Kind Of 14500 Li Ion Battery Do I Need...

[HowieG]

What kind of 3.7 volt 14500 lithium ion battery would I need to run a Fenix L1D CE or a Jetbeam Mark II?

Protected or unprotected and why?
Approximately how long would such a battery run at maximum output, assuming 135 lumens?
Will all such batteries fit a Fenix or Jetbeam, regardless of the manufacturer?
Where can I purchase these batteries and a charger?

Thanks in advance for all of the info.

 

[coppertrail]

A protected cell adds a circuit that prevents over discharging/over charging.
You can purchase these cells/charger from one of the following locations:

Lighthound
AW's Charger Thread
AW's 3.7V cell thread

I purchased 3.6V 14550/10440 cells/charger for my L1T CE/L0D CE. I will just have to ensure that I don't drain the battery too far or overcharge them. When the light starts to dim, I'll need to charge them up.

 

[HowieG]

Thanks for the info, Coppertrail.

 

[Lobo]

I'm also wondering about this, especially how the runtimes would be on a L1D CE on a 14500, compared to AA on L1D or 2AAs on an L2D.

I belive www.dealextreme.com and www.kaidomain.com also has some cheap batteries and chargers, no idea though if they are any good.

 

[coppertrail]

I ordered the following items from DealExtreme:

UltraFire 3.6V 14500/10440 Charger
UltraFire 2-Pack 14550 Cells
UltraFire 2-Pack 10440 Cells

Can't comment on the runtimes, but note that the above cells are not protected. You'll need to make sure they don't run down below a certain voltage. Rule of thumb is if the light starts to dimm, recharge the cells. But charging more often is a better bet for cell longevity.

You can also purchase the AW cells. To my knowledge, there isn't a 10440 cell in their linup, which is one of the reasons I went the ultrafire unprotected cell route.

 

[bullpup]

Hello,


Would this be a noticable dimming wwith the 14500?

What low voltage is considered to have killed the battery?

A protected cell adds a circuit that prevents over discharging/over charging.
You can purchase these cells/charger from one of the following locations:

Lighthound
AW's Charger Thread
AW's 3.7V cell thread

I purchased 3.6V 14550/10440 cells/charger for my L1T CE/L0D CE. I will just have to ensure that I don't drain the battery too far or overcharge them. When the light starts to dim, I'll need to charge them up.