June 5 ·
Bench Test Results: Vapcell G50 – 15A 5000mAh 21700…great performer but “max” rating issue
Test Report Summary: The Vapcell G50 is a great performing ultra-high capacity 21700 cell. These beat the blue Vapcell 12A 5000mAh, Samsung 50E, and Samsung 50E2. Vapcell says they are rewrapped Samsung 50G cells and they look and perform essentially the same as the Samsung 50G. Vapcell’s use of a “max” current rating is a problem though.
Samsung gives the 50G a 9.8A continuous rating and a 14.7A non-continuous (“temperature-limited”) rating. This means you can use it at 14.7A as long as the cell temperature does not go over 60°C/140°F. The 9.8A rating is what you must use when comparing this cell to others. Hard use of this cell can bring it to 60°C so don’t let it get more than warm.
The capacity of the two cells I tested was 4978mAh and 4979mAh. While this is extraordinary consistency, typical for cells from the big manufacturers like Samsung, they failed to meet the 5000mAh rating Vapcell gave them. The cells I have cannot be the lowest capacity cells in the batch either. I am rating the Vapcell G50 at the same 4900mAh rating Samsung gives them. Why Vapcell decided to exaggerate this rating is a mystery to me and frustrating.
Two cells were sent for the purposes of testing by Vapcell (www.vapcelltech.com). Thank you!
Ratings graphic: https://imgur.com/a/shRsZPF
Full Test report: https://bit.ly/3gX8ip9
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These tests only note the ESTIMATED ratings for these batteries at the time I tested them. Any battery that is not a genuine Samsung, Sony, Murata, LG, Panasonic, Molicel, or Sanyo can change at any time! This is one of the hazards of using “rewrapped” batteries 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 personal injury or property damage. They are not meant to be used outside of a protected battery pack and you use them AT YOUR OWN RISK. Never exceed the battery’s continuous current rating and keep the plastic wrap and top insulating ring in perfect condition.
Any rating in my ratings tables can change at any time as different grade cells appear on the market, we get swamped with fakes, or new information becomes available to me. Please, never assume that the ratings in the tables are permanent and will never change! Always download the latest version before considering any cell purchase.
To see how other cells have tested check out this link: https://www.e-cigarette-forum.com/…/list-of-battery-tests.…/