21700 batteries that fit Convoy S21A flashlight

California_Prepper · 2019-07-09T04:14:49.000Z

Ordering now. Thank you!

amishbill · 2019-08-09T14:48:47.000Z

Well Crap.

This explains why I can’t get my Sofirn labeled (Protected, I think) 21700 into the s21a that just arrived. :-/

e1000 · 2019-08-09T16:08:36.000Z

Molicel P42A fits

abgx1 · 2019-09-05T14:22:38.000Z

some tip where to buy 21700 battery to s21a with shipping to central EU? (slovakia)

there are so many fakes on aliexpress, and in local store they cost like 15-20€ for samsung 50e

spaghettikku · 2019-09-06T09:27:58.000Z

It not fit to s21a

abgx1 · 2019-09-08T19:34:00.000Z

I bought LG m50t, we will see

d_t_a · 2019-09-10T04:38:08.000Z

Genuine Samsung 30T/40T/48G/50E and LG M50 fits the Convoy S21A.

iJoy 3750mAh 21700, Sofirn 4000mAh 21700 and Liitokala Lii-40A 4000mAh 21700 battery diameter is slightly too big and won’t fit the S21A battery tube.

I’ve read that some people have some luck inserting the Lii-40A 21700 from the head end (instead of tailcap end) of the 21A battery tube though.

Wildcat · 2019-10-02T05:27:31.000Z

New Liitokala Lii-50E 5000mAh have 21.3mm diameter and fit perfectly into Convoy S21A.

The_Fat_Controller · 2019-10-02T10:45:22.000Z

Does anyone know the reason 18650/21700 was chosen over 26650 for the L21A ?? looking at the range of good capacity 26650 cells available i would of thought that was a better option?

Does the L21A have a different reflector than the L2? thinking i should just buy the XHP35 Hi emitter, driver and an L2 host and save a lot of aggro trying to get 21700’s ?

Yokiamy · 2019-10-02T11:15:00.000Z

The_Fat_Controller:

Does anyone know the reason 18650/21700 was chosen over 26650 for the L21A ?? looking at the range of good capacity 26650 cells available i would of thought that was a better option?

Does the L21A have a different reflector than the L2? thinking i should just buy the XHP35 Hi emitter, driver and an L2 host and save a lot of aggro trying to get 21700’s ?

The L21A is just an L2 with a 21700 size battery tube, so the head is the same, but with different threads on the tube side.

However, the XHP35 driver is single cell only, so don’t use the extra tube for 2 cells. So only use 1 cell.

The_Fat_Controller · 2019-10-02T11:30:09.000Z

Yokiamy:

The_Fat_Controller:

Does anyone know the reason 18650/21700 was chosen over 26650 for the L21A ?? looking at the range of good capacity 26650 cells available i would of thought that was a better option?

Does the L21A have a different reflector than the L2? thinking i should just buy the XHP35 Hi emitter, driver and an L2 host and save a lot of aggro trying to get 21700’s ?

The L21A is just an L2 with a 21700 size battery tube, so the head is the same, but with different threads on the tube side.

However, the XHP35 driver is single cell only, so don’t use the extra tube for 2 cells. So only use 1 cell.

Yes 1 cell only (should of mentioned that) I have been searching for a 2s 2.3amp boost driver but as yet not found anything sadly… Trouble is being in the UK 21700 is hard to come by and id need a different charger as well , think il go with the L2 that way at least if i ever find a suitable 2s driver i can add a second battery

Im guessing there is no 6v XHP35 hi emitter available?

Yokiamy · 2019-10-02T11:47:54.000Z

Something like THIS ?

Doesn’t NKON.NL ship to UK?

The_Fat_Controller · 2019-10-02T11:58:18.000Z

Yokiamy:

Something like THIS ?

Doesn’t NKON.NL ship to UK?

1.5amp is better than a kick in the teeth , but the driver in that L21a puts out 2.3amp taking the 35 hi to its max …

Got to say the L21a package is really hard to beat on value, if a 2.3amp 2s driver exists then putting the 35hi in an L2 is no brainer , but im kinda thinking Mr convoy would have already done it if they were available?

Yokiamy · 2019-10-02T12:41:08.000Z

Maybe this:

https://led4power.com/product/ld-b4hv-2-12amp-2s4s-multi-cell-17mm-constant-current-led-flashlight-driver-external-mosfet-support/

The_Fat_Controller · 2019-10-02T12:52:49.000Z

Yokiamy:

Maybe this:

https://led4power.com/product/ld-b4hv-2-12amp-2s4s-multi-cell-17mm-constant-current-led-flashlight-driver-external-mosfet-support/

That is an interesting driver!, im guessing id have to use 4x 26350 to get the voltage up enough for 12v emitter but it could still be a viable option , that could work

d_t_a · 2019-10-02T13:34:37.000Z

Wildcat:

New Liitokala Lii-50E 5000mAh have 21.3mm diameter and fit perfectly into Convoy S21A.

Where to find this Lii-50E? (I’m guessing the “50E” refers to using Samsung 50E 21700 or similar internally?)

Wildcat · 2019-10-02T17:03:12.000Z

d_t_a:

Wildcat:

New Liitokala Lii-50E 5000mAh have 21.3mm diameter and fit perfectly into Convoy S21A.

Where to find this Lii-50E?

I bought my batteries here:

aliexpress.com

4.61€ 50% OFF|NEUE LiitoKala Lii 50E 21700 5000 mAh Li 50E Ni 3,7 V Batterie...

Smarter Shopping, Better Living! Aliexpress.com

mudguts · 2020-11-20T08:09:30.000Z

Hi,

Will shockli 21700 4000mah fit, measured at 21.74mm wide, thanks

fxsniper · 2021-09-17T19:15:01.000Z

Just bought a Convoy S21A for my son´s birthday. Could not find Samsung INR21700-50E 4900mAh - 9.8A, so I got the Samsung INR21700-40T (40T3) 4000mAh - 35A. Should be OK? This is new stuff for me, …so if I understand correctly they are almost the same, 40T is 900mAh less, so will last a little less and its 35A is overkill, but no problem to use……OK?

thanks!!!

Mikeadoo · 2022-05-15T18:44:54.000Z

Should work just fine fxsniper. 35A just means it’s a high drain/power cell. Not gonna hurt the light.