Bench Test Results: Vapcell F63 - 12.5A 6250mAh 21700

These tests below only note my personal opinion for the ESTIMATED ratings for the batteries I tested at the time I tested them. Any battery that is not a genuine Samsung, Sony, Murata, LG, Panasonic, Molicel, EVE, Ampace, Sinowatt, Lishen, BAK, or Sanyo can change at any time! This can be one of the hazards of using “rewrapped” or batteries from other manufacturers so carefully research any battery you are considering using before purchasing.

Misusing or mishandling lithium-ion batteries can pose a SERIOUS RISK of property damage, personal injury, or even death. Never use them outside of a fully protected battery pack and you use them at your own risk. Never exceed the battery’s true continuous discharge rating (CDR), never let it get colder than 0°C or hotter than 60°C to help lower the risks and extend cell life, and keep the plastic wrap and top insulating ring in perfect condition. Never use a battery that is physically damaged in any way.

Testing batteries at their limits is dangerous and should never be attempted by anyone who has not thoroughly studied the dangers involved, understands the risks, has the proper equipment, and takes all appropriate safety precautions.

If the battery has only one current rating number, or if it only says "max", then I have to assume the battery is rated at that current level for any type of discharge, including continuous.

IMG_4532.jpegIMG_4533.jpegIMG_4535.jpegIMG_4536.jpegIMG_0205.jpeg


Test Results
This is a good performing cell that runs cool for its reasonable 12.5A rating. This cell runs for a couple percent longer at 5A and 10A than the Vapcell F58 and F60.

Like all ultra-high capacity cells this is not a “power” cell! You won’t see any of its extra capacity if you run it at above a few amps. I recommend staying under 2A-3A if you want all the extra capacity.

Some notes…
  • Vapcell rates the F63 at 6050mAh minimum/6250mAh typical capacity.
  • The two cells I tested delivered 6164mAh and 6196mAh, which is not great consistency. I’ll be rating it 6150mAh.
  • At 5A the Samsung 55E and EVE 58E run for a few percent longer and that might be noticeable.
  • At 10A the Samsung 50S2/55E and EVE 58E run for a bit longer than this cell, probably not noticeable.
  • At 10A this cell runs for about the same time as Molicel P50B, BAK 45D, and Ampace JP40.
  • Vapcell’s standard charge current rating is 2A and the max is 3.5A . Stay at 1A or lower for longest life.
  • The F63’s DC IR measured 19.6mOhms and 20.2mOhms, okay consistency.

Continuous Current Discharge Graphs
Vapcell F63 CC Tests - May 2025.jpeg


Ratings and Performance Specs Graphic
IMG_0206.jpeg


18650 Ratings & Performance Table:


21700 Ratings & Performance Table:

I want to work for the community full time! If you feel what I do is worth a couple dollars a month and you would like early access to battery availability, battery testing and news, and a say in what I test, then please consider becoming a patron and supporting my testing efforts: Get more from Battery Mooch on Patreon.

Shinyitis Support Group

Made a rare visit to a brick & mortar vape shop this morning. It's the one where i got my 1st real device (if you consider a SMOK Nord a real device). New sign, new name, so i guessed new owner. i happened to be driving past it & was curious.

It was gratifying to see that they still had about 1/2 the store devoted to the kind of vaping we here do, w/ a wall full of nic e-liquids & coils + a long row of display cases w/ mods, tanks, & pod kits. Nothing for builders, mixers, & folks like many of us but, still, a selection of actual mods & other items for nic vapers.

Still cannabis-related products in the other roughly 1/2 the store but they hadn't taken over. It was nice to see. i got an overpriced pack of drop-in coils that i can use but don't need, just to support the place.

(Not exactly a shinyitis story but it was a positive purchasing experience i wanted to share.)

Lounge Lizards / Misfits / Free Thinkers / Bohemians & the Forgotten :: Young at Heart Only

Pearl Jam did a really good cover of that song.

Haven't heard that, but imo hard to beat Dylan on it.
Made it to rehab late yesterday, we'll see how quick i can now recover.

Don't melt, Will!

Filter