YZXStudio 8 Power Bank Review (4x18650)

[angerdan]

@The_Driver

1. Is version 8 still the newest variant? The review is from 2016
2. What is the standby current when the display is turned off and the device is lying around unplugged?
3. If I reduce the charge voltage of the batteries and increase the minimum voltage to prolong their lifespan (for example min = 3.5V, max = 3.9V), does the percentage display react accordingly?
4. What happens to the percentage display of the remaining capacity when a fast-charging device is plugged in and the voltage of the batteries drops?

To me the most interesting details about this power bank are that one can set the min & max battery voltages to increase the lifespan and that high-drain batteries can be used. They work much better in cold temperatures wallowing the power bank to truly be always ready.

1. Yes, it is still the latest variant from YZXStudio.
2. Standby current should be lower than in generation 7, because the springs have been replaced with soldered cells.
3. I would expect the powerbank internal BMS to react accordingly.
4. I like to try this when my copy has been married to some cells. Currently i have to find an service provider who offers point laser welding on batteries.

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I have some questions for this forum too:
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Which cell is best suited to use in the YZXStudio Powerbank?

• Sony Konion US18650VTC6…3120mAh, 6A charging, 30A discharge (my favourite)
• Samsung INR18650-30Q……3000mAh, 3A charging, 15A discharge (second choice)
• LG INR18650HG2……………3000mAh, 4A charging, 20A discharge (not as good as the Samsung)

And does the powerbank use a sensor to control the temperature of the cells?