Comparative test chargers 5V and microUSB cable Bashny.Net

Bust several chargers (memory) for the phone in the car showed that low-cost memory noname, no matter what the current stated by the manufacturer, the phone is not charged. Problem solved purchasing car charger Nokia DC-17 (claimed to 1000mA). But then the HTC Wildfire S with a 1300 mAh battery for charging which is more than enough 0, 5A, was replaced by Lenovo P780 with battery 4000 mAh, already requires 2A.





And this has led to a new problem - Nokia DC-17, quietly and quickly charges the old phone when charging the new loud food. What prevented listen to music and caused concern for the memory and the phone.
Selection of memory in the car took some time and has led to an unexpected conclusion.

Nokia DC-17 given as a gift, buy memory for tablets Samsung ECA-P10CBE (2000mA). And since cable included had the original connector for tablets Samsung, had to use the RAM first got cable microUSB. Phone is being charged with a current of 0, 11A, that is not enough - in the Navigator phone slowly but consumed. And the cost to replace the string to the original, and the charge current has increased to 1, 41A. Current does not depend on whether - whether the memory into the cigarette lighter or connected through a "tee».



This unexpected result served as a basis to check all available memory on hand and cables using purchased in the Chinese online store device USB Charger Doctor. Is not in the Russian Register of measuring and unverified, but certainly it is. Before each new measurement of the phone was on charge of about 1 min. Phone battery before a series of tests was charged at 8%, in the process then charged to 15%.

The first stage tested the memory with the original cable from Lenovo P780:
1) original Lenovo (stated to 2A) - 1, 85A
2) Samsung (stated to 2A) - 1, 85A
3) HTC (stated to 1A) - 1, 24A
4) Sony Ericsson (stated to 0, 85A) - 0, 90A
5) Sony (stated to 0, 5A) - 0, 81A
6) Samsung (stated to 1A) - 0, 68A


Noname memory not investigated due to the fact that the empirically determined to be unfit for a long time and discarded. The possibilities of branded memory, according to the test, roughly correspond to the declared.

The second step compares the microUSB cable to the native cable from Lenovo (in the photo above), which allows you to charge the same phone from the same memory at the current 1, 85A:
1) Sony Ericsson - 1, 86A
2) Short cable Nokia - 1, 87A
3) long cable Nokia - 1, 30A
4) Solid feel long and thin cable noname №1 (upd: on Kindle) - 0, 90A
5) Noname cable №2 - 0 61A
6) A thin cable Samsung - 0, 42A
7) Nomame cable №3 - 0, 15A
8) Noname cable №4 - 0, 10A



Only two cable allows you to charge your phone quickly from the native memory, as well as native from the kit. One or two suitable with reservations, the other to charge your phone can not be used.

Conclusion: In the memory characteristics of the decent manufacturers regarding truthfully indicate current limiting, and these data can be guided. But with the increase in the rate of charge of charge currents determined in large part not memory, and microUSB cable. And a nice short thick cable that comes with the phone or tablet with a powerful battery charger valuable good.

Source: habrahabr.ru/post/211066/