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20.04.2016, 21:08 | 1 |
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Регистрация: 03.07.2010 Последняя активность: 10.10.2022 08:53 Адрес: Copenhagen, Denmark
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Test/Review of Efest IMR18650 3500mAh (Purple) 2016
Efest IMR18650 3500mAh (Purple) 2016
Official specifications:
This is a high capacity and fairly high current cell. These cells handles up to 10A fine, but I wonder why they have a difference in capacity. At 10A the surface temperature of the batteries raises about 50°C, this means they are very close to 80°C. At 20A the temperature raises to above 85°C fairly fast and I terminated the test. Notice the dark red curve, it do not jump up, but down, this means the battery terminated that discharge, not me (i.e. the battery blew an internal fuse and is dead). Conclusion The cells are supposed to be fairly good cells, but I do not like the difference between them and they are not 20A cells. Notes and links The batteries was supplied by Efest for a review. How is the test done and how to read the charts How is a protected LiIon battery constructed More about button top and flat top batteries Compare to 18650 and other batteries
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