Can I use 4000mah 18650 in PD31?

Gilgamesh · Jul 12, 2011

Hello, I did a search and really couldn't find the answer I'm looking for. I just ordered a Fenix PD31 the other day, and want to get a set of 18650s for it. Was wondering what mah rating I can use with this light. I was just going to get 3000mah but will 4000mah work? Thank you for helping!

Gilgamesh · Jul 14, 2011

Anyone using 4000mah in their Fenix? Thanks!

hellokitty[hk] · Jul 14, 2011

If they're rated at 4000mah, they're probably xxxxfire cells, and clearly overrated. Aside from dangers from poor cell quality, it will work.

Gilgamesh · Jul 14, 2011

Hmm, Thanks for the response! I'll try something else.

ergotelis · Jul 14, 2011

Yes you can, but as hellokitty said, better buy something else, can't trust something that is so much overrated. Only the best 18650 cells have just a bit higher than 3000mah capacity and they are much more expensive and from reputable manufacturers. 4000mah would be nice, but just pray for the cells to have at least the half of it.

Glock27 · Jul 14, 2011

Nope! There is no such thing as a 4000 mAh 18650. I don't think anything has tested over 3000 at typical flashlight loads.

G27

derfyled · Jul 14, 2011

The mAh refers to the cell capacity. As an exemple, a 1000 mAh cell will last half the time of a 2000mAh cell. As long as they have the same voltage, you can use any cells but be sure to use a cell that is protected since a PD31 does not have an over-discharge protection circuit.

Gilgamesh · Jul 14, 2011

Think I'll just go with AW 18650 protected then. Might as well spend the price for quality, and get what you paid for. Thanks for the info folks!

ergotelis · Jul 14, 2011

Or Redilast

Brasso · Jul 14, 2011

Just a thought, but make sure the PD31 can use flat top 18650's. Some lights can only use the button tops. I have no idea what the PD31 takes.

kj2 · Jul 15, 2011

Brasso said:
Just a thought, but make sure the PD31 can use flat top 18650's. Some lights can only use the button tops. I have no idea what the PD31 takes.

Nake · Jul 15, 2011

My PD31 has a raised button on the circuit board and does take flat tops.

ScaryFatKidGT · Jul 16, 2011

Nake said:
My PD31 has a raised button on the circuit board and does take flat tops.

Mine too

nanotech17 · Jul 16, 2011

Nake said:
My PD31 has a raised button on the circuit board and does take flat tops.

Yup,mine as well,AW flat top is fine,unprotected 18650 is ok because once it reach 3v it is too low too use.

bullinchinashop · Jul 18, 2011

Where would be a good place to buy protected 18650's? I fell for those 4000 mAh batteries & I would like to buy something better in case these things turn out to be the junk everybody says they are. I looked at Battery Junction but they mostly sell ultrafire.

polarion · Jul 19, 2011

bullinchinashop said:
Where would be a good place to buy protected 18650's? I fell for those 4000 mAh batteries & I would like to buy something better in case these things turn out to be the junk everybody says they are. I looked at Battery Junction but they mostly sell ultrafire.

You may try here:
http://www.oveready.com/batteries-chargers/aw-18650/2900-li-ion-rechargeable-battery/prod_186.html

LED_Thrift · Jul 19, 2011

over in the Marketplace you can get AW cells directly from AW. The dealer Lighthound has them also, and since he ships from Texas, there are no international postal delays.

bullinchinashop · Jul 19, 2011

LED_Thrift said:
over in the Marketplace you can get AW cells directly from AW. The dealer Lighthound has them also, and since he ships from Texas, there are no international postal delays.

polarion said:
You may try here:
http://www.oveready.com/batteries-chargers/aw-18650/2900-li-ion-rechargeable-battery/prod_186.html

Thanks!

bullinchinashop · Jul 19, 2011

Never mind I got something else

bullinchinashop · Jul 19, 2011

I just ordered this:
http://www.amazon.com/dp/B004AWE2L2/?tag=cpf0b6-20
Batteries & charger are made in USA supposedly and the batteries are button-top
They should be here by the 29th I don't have a multimeter anymore but I'll at least post my initial thoughts when they get here.

Edit:
They've already been mailed!

http://www.candlepowerforums.com/vb/showthread.php?318894-Orbtronic-18650-batteries-and-charger

Can I use 4000mah 18650 in PD31?

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