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Test/review of Uniross Charger LCD 3-5H
Uniross Charger LCD 3-5H
This is a fairly simple NiMH charger for AA and AAA cells. I got the charger in a blister pack. The pack has a few specifications on it. The pack contained the charger and an instruction sheet. The charger plugs directly into a mains outlet The user interface is a LCD display with 4 batteries on it and a 3. different messages: CHARGE, READY, BAD. Very simple and easy to understand. Specifications are listed on the back. The charger uses the typical two level slots for NiMH AA/AAA batteries. Measurements charger
Nice charging, the termination is slightly slow, but works. A little bit faster termination this time. Oops, about two hours to termination. Again a nice curve. Also a nice curve. This cell is very worn and the charger cannot really terminate on it. The time used is exactly the same as #3 above, it looks like a maximum charge time/capacity. The limit is fairly good for AA cells, it prevents serious over charge. With AAA a lower charge current is used and again the termination was rather slow. A full cell is discovered and charging stopped. Charge speed is the same with 4 cells in the charger. M1: 29.0°C, M2: 31.6°C, M3: 33.4°C, M4: 31.1°C, HS1: 38.1°C The charger is fairly low current and do not get very warm. M1: 30.3°C, HS1: 48.0°C The charger needs a about 1.4 seconds to initialize. It has both short and long measuring pulses, I wonder why. Testing the transformer with 2830 volt and 4242 volt between mains and low volt side, did not show any safety problems. Conclusion This is a simple and not that fast charger and sometimes it misses termination, but due to its capacity/time limit it will always stop without doing any serious damage to the batteries. I will rate it acceptable. Notes Here is an explanation on how I did the above charge curves: How do I test a charger Charge selection table
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