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Регистрация: 03.07.2010 Последняя активность: 10.10.2022 08:53 Адрес: Copenhagen, Denmark
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GH Power Charger XY-186BS
![]() ![]() ![]() This is a very simple and cheap USB powered charger. ![]() It arrived in a envelope with no accessories, not even an instruction sheet. ![]() The charger is powered from micro usb. ![]() On the top is 3 holes for leds, there is a single red and a single green below. The red will be on while charging the green at all other times. ![]() On the bottom is listed 3 current, I have no idea why. ![]() ![]() ![]() The charger uses a fixed slot with a spring, it can handle batteries from 63mm to 68mm, this means unprotected and some protected 18650 cells. ![]() ![]() ![]() Measurements charger
![]() The charger uses a CC/CV charging with about 200mA termination current, because it uses a linear regulator it gets too hot when starting on a empty battery and may reduce the current. If the voltage drops too much the charger will use trickle charging. ![]() This battery do not drop very much when charging terminates and the charger terminates fine. ![]() ![]() These two are older batteries and will drop in voltage, this means trickle charger. ![]() Adding a 0.5ohm resistor in series with the cable to simulate a long cable or weak USB power supply will slow the charger down, but not that much. ![]() M1: 34.9°C, HS1: 70.1°C ![]() HS1: 73.1°C ![]() The charger is very simple and do not need any time to initialize. ![]() Charging profile. ![]() Being a simple charger it works fine with unstable supply. Conclusion This charger is very simple and only fit 18650 batteries, it has a problem that it sometimes will trickle charge. To avoid extra wear on the batteries due to that it is best to remove them from the charger within a few hours after charging is finished. The charge voltage is also at the maximum allowed for LiIon, this by itself it not a problem, but I wonder if some copies of the charger has too high voltage. The charger works very fine with unstable power supplies, i.e. a solar panel, but there is a single caveat: If the power disappears just before the battery is full, it will switch to trickle charge when the power returns, i.e. the battery will be slightly below a full charge. For a very cheap charger it works fine and I will rate it fairly good as 18650 charger. Notes The charger was supplied by a reader for review. Here is an explanation on how I did the above charge curves: How do I test a charger Read more about how I test USB power supplies/charger
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My website with reviews of charges, batteries and other stuff: http://www.lygte-info.dk/ |
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