Test/review of Tronic LCD Display IAN 313693 HG04710A

1 post / 0 new
HKJ
HKJ's picture
Offline
Last seen: 4 hours 18 min ago
Joined: 05/24/2011 - 12:23
Posts: 6962
Location: Copenhagen, Denmark
Test/review of Tronic LCD Display IAN 313693 HG04710A

Tronic LCD Display IAN 313693 HG04710A
DSC_0421
DSC_0422 DSC_0423
This charger is a AA/AAA charger and USB charger from LIDL (Tronic is a LIDL brand).
DSC_0384 DSC_0385 DSC_0386
I got the charger in a blister pack. The pack has a very few specifications on it, mostly that it takes about 6½ hour to charge 2400mAh cells.
DSC_0410
The pack contained the charger, a instruction book in many languages and four 2400mAh Tronic batteries.
DSC_0411
The instruction book may be in many languages, but it is not superficial.
DSC_0424
The charger is designed for directly plugging into a mains outlet.
DSC_0427
The user interface is a LCD display, there is no settings or anything.
DSC_0971
Display when powering on. The display must be seen fairly straight on to get the correct readout.
DSC_0946
Charging four batteries, the battery symbols are animated.
DSC_0426
The usb output is placed on the side.
DSC_0425
Specifications are listed on the bottom of the charger.
DSC_0428 DSC_0429
DSC_0430
The slots are the typical two level slots often used for AA/AAA batteries.
supportedBatteryTypes
supportedBatterySizes DSC_0431 DSC_0432
Measurements charger


  • When not powered it will discharge the battery with about 0.6mA
  • Charge will restart charging after power loss, or battery insertion.
  • Power consumption when idle is 0.25 watt

Tronic%20LCD%20Charger%20%28eneloop%29%20%231
Manual specifies charge current as 450mA and that looks correct enough. The charger reduces the current slightly when nearing the end of a charge and then terminates on voltage. Finally a 1 hour 50mA top-off charge is used.
Tronic%20LCD%20Charger%20%28eneloop%29%20%232
Tronic%20LCD%20Charger%20%28eneloop%29%20%233
Tronic%20LCD%20Charger%20%28eneloop%29%20%234
The other slots looks similar.
Tronic%20LCD%20Charger%20%28eneloopPro%29%20%231
Tronic%20LCD%20Charger%20%28fujitsu%29%20%231
Tronic%20LCD%20Charger%20%28leise25%29%20%231
it looks like all the high capacity cells are terminated slightly early and at a lower voltage.
Tronic%20LCD%20Charger%20%28eneloopAAA%29%20%231
With AAA the current is lower, manual says 200mA and that looks correct.
Tronic%20LCD%20Charger%20full%20%28eneloop%29%20%231
A full cell takes some time to detect and it gets the one hour top-off charge. At 50mA this is not a problem.
Tronic%20LCD%20Charger%20%284xeneloop%29
Four cells is charged the same way as one cell.
Temp7173
M1: 40.0°C, M2: 41.1°C, M3: 40.9°C, M4: 37.6°C, M5: 42.8°C, HS1: 46.1°C
Temp7174
M1: 39.9°C, HS1: 46.0°C
PoweronNiMH
The charger starts in a few seconds and use pulses when charging as basically all NiMH charger does.
USB output


  • Display do not indicate when USB output is used.
  • Usb output is coded Apple 1A

Tronic%20LCD%20Display%20230V%20load%20sweep
The USB output is rated for 1A, but can easily deliver more. This is not enough current to be an issue.
Tronic%20LCD%20Display%20120V%20load%20sweep
At 120VAC the output is similar.
Tronic%20LCD%20Display%20Charging%20230V%20load%20sweep
Charging batteries at the same time as using the USB output is possible, it do limit the maximum current some, but it can still deliver the rated 1A.
Efficiency will go down, because a lot of energy is used for charging.
Tronic%20LCD%20Display%20Charging%20120V%20load%20sweep
Again 120VAC is similar.
Tronic%20LCD%20Display%20230V%20load%20test
Rated 1A output for one hour is no problem.
The temperature photos below are taken between 30 minutes and 60 minutes into the one hour test.
Temp7185
M1: 36.0°C, HS1: 36.5°C
Temp7186
HS1: 40.7°C
Temp7187
HS1: 37.9°C
Temp7188
HS1: 38.5°C
10ohm
Noise is 19mV rms and 710mVpp
5ohm
Noise is 19mV rms and 670mVpp, this is nice low values.
Testing the charger with 2830 volt and 4242 volt between mains and low volt side, did not show any safety problems.
Conclusion
As a NiMH charger it works fine, but I could have wished for a bit more charge into high capacity cells.
The USB output uses a old coding, this probably means many modern phones will charge rather slow from it.
Notes
The charger was supplied by a reader for review.
The batteries is reviewed here
Here is an explanation on how I did the above charge curves: How do I test a charger
Charge selection table

My website with reviews of many chargers and batteries (More than 1000): https://lygte-info.dk/