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  • JohnnyMorales commented on Nematic!'s instructable Capacity Test Of Fake 186503 months ago
    Capacity Test Of Fake 18650

    I should have said specifically made to charge li-ion batteries that can also charge other types of rechargeables, because it seperate circuitry for each to match their specific requirments, rather than custom mad.

    And they are often the most counterfeited brands too boot. It takes a bit more effort to beat the counterfeiters at their own game than simply buying brand label. About the only certainty is brand name batteries are always by far the most expensive costing 2-4x as much as the generics and the counterfeits.Even then you could still buy a bad one simply going on price alone from a seller who takes advantage of people who think price = quality.

    As Li-Ion batteries age, they lose capacity. Also an inadequate charger can cause a rapid reduction in charging due to a poor match in the specific requirements for each brand of li-ion battery out there. If you're going to try and figure out the capacity of used batteries like that try an opus charger custom made to charge li-ion batteries and rated highly. There are several versions out there, and I think the one that gets it right the first time are chargers with hardware update 2.1 and newer. While they can also be counterfeited, the manufactured does try to make it possible for consumers to have confidence in their purchase. You do have to read the small print in ads though, and see if it comes with some sort of hard to imitate proof of origin. Opus chargers give a good statistic...see more »As Li-Ion batteries age, they lose capacity. Also an inadequate charger can cause a rapid reduction in charging due to a poor match in the specific requirements for each brand of li-ion battery out there. If you're going to try and figure out the capacity of used batteries like that try an opus charger custom made to charge li-ion batteries and rated highly. There are several versions out there, and I think the one that gets it right the first time are chargers with hardware update 2.1 and newer. While they can also be counterfeited, the manufactured does try to make it possible for consumers to have confidence in their purchase. You do have to read the small print in ads though, and see if it comes with some sort of hard to imitate proof of origin. Opus chargers give a good statistical breakdown of what to expect from both a new battery and old ones after it charges.It also has a discharge/refresh cycle for old batteries that can help restore some capacity lost due to time or being charged by a poorly designed charger.It has several other functions for li-ion that heavy users will find very useful. To be clear, it's not just the li-ion batteries mass produced in China by anonymous manufacturers that are sketchy, but also the cheap, poorly made mass produced li-ion chargers that are a big source of the problem often attributed to the batteries alone.Using a poorly made charger can dramatically shorten the life of even the best made li-ion battery.

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