What the best 14500 battery?

[Wendee]

The info in this thread was so helpful to me today.

I'll post some info I found for other's who might read this thread because they're looking to buy good 14500 batteries.

The dimensions of the Sanyo UR14500P, 840mAh, without protection are 50.0mm x 14.05mm (as per Orbtronic site).

Sanyo UR14500P, 840mAh, with protection:
Orbtronic brand: 52.9mm x 14.6mm (as per Orbtronic website)
Keeppower brand: 52.5mm x 14.5mm (as per HKJ review on CPF, 2015)

I just bought the Orbtronic brand. Apparently, these batteries will fit in the new flashlight I just ordered. I really hope so (fingers crossed).

Note: I've seen a few posts where CPF members said they're Keeppowers were actually longer than 52.5mm. I'm not sure if different batches would have different lengths, maybe? :shrug:

 

[CelticCross74]

OP the answer is any Sony 14500 that actually fits the light. My new adventure into 14500's recently has been odd. I admit I should have gone over the manual for the light again before I ordered the 840mah Keeppower 14500's. I have been a Keeppower devotee for awhile and am used to never having to wonder about any feature of their cells. Well...the Eagletac GX25A3 I got them for maxes out at 52mm long 14500's. The protected Sony based 840mah Keeppower cells came in at a bit over 55mm each on my calipers! They just squished the negative end springs in the light so much when the end cap was put on I couldnt get any current going. So then I ordered some 750mah NC NL147 14500's which are specified at 52.5mm perfect right? My delivery of these cells show up and one of the 3 is only 50.5mm long so much for that project. I at least am able to use the awesome high capacity 840mah Keeppowers in my Jetbeam WS-L1. I had already tried a couple top notch 16340's in the Jetbeam with just above a "meh" response. The Keeppower 14500 inside it it is like a whole nother light. Output is clearly up at all modes visually which increased beam definition and so far the cell is doing a top notch job of living up to its rated capacity. Oh its the 800mah Keeppower 14500's that are 52-ish mm. Wish I had known that before. Orbtronics just as good quality but for instance Orbtronic and Keeppower do have their own specified protection circuits and wrap applied when they are finally put together. Also have a Keeppwer 700mah 16340 that measured in at 35.26mm long vs a 700mah Orbtronic 700 that came in at 34.14mm long on my digital calipers. Just that one mm kept me from being able to run the Keeppower in my new SRT3. Hmph...

 

[stephenk]

The info in this thread was so helpful to me today.

I'll post some info I found for other's who might read this thread because they're looking to buy good 14500 batteries.

The dimensions of the Sanyo UR14500P, 840mAh, without protection are 50.0mm x 14.05mm (as per Orbtronic site).

Sanyo UR14500P, 840mAh, with protection:
Orbtronic brand: 52.9mm x 14.6mm (as per Orbtronic website)
Keeppower brand: 52.5mm x 14.5mm (as per HKJ review on CPF, 2015)

I just bought the Orbtronic brand. Apparently, these batteries will fit in the new flashlight I just ordered. I really hope so (fingers crossed).

Note: I've seen a few posts where CPF members said they're Keeppowers were actually longer than 52.5mm. I'm not sure if different batches would have different lengths, maybe? :shrug:

Keeppower often update their products. The newer version is 52.7mm and is a wrap of a Sanyo UR14500P.