Re-using the 18650 cells which came out of a PowerAdd Pilot X7 powerbank to populate the Qidian QD188
By Julian
Youtuber, shed dweller, solar charge controller aficionado
Good morning all…
Youtuber, shed dweller, solar charge controller aficionado
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Hi, I have an USB c model, but it won't turn off. Only after charging after a little timeout. Anyone any suggestions?
I built the QD188 in Jan, 2017. Today the variable output (2.5mm) quit working. The display reads 15v (for example) but there is not output voltage, so the display indicates a selected voltage, but not the actual output voltage. I opened it up hoping to find a fuse but no such luck. Anyone with this device have any suggestions. Also, you can copy, print and attach this label to the front of your QD188.
TAPE THESE INSTRUCTION TO THE FRONT OF YOUR CHARGING CHASSIS:
Print and cut out these instructions.
Tape them to the front of the unit.
This is font size 11
________ cut here _______________
IN OUT M USB2 USB1
18-20v 0-24v OUT OUT
2.1mm 2.5mm 5 V 5V
——————– cut here ———————-
This is font size 7 – use font size 6 in WORD
——————– cut here ———————-
Model QD188-Alt QC (Jan 2017)
<— Left side is micro-USB port; 5v-12v input for
charging this unit
Operating Instructions:
Left button:
Display voltage: 2x fast click 1 or 2 or M or auto cycle 1-2-M
Adjust “M” voltage: slow click .1v increment up
Adjust “M” voltage: HOLD: 1.0v increment up
Right button:
Display voltage: 2x fast click 1 or 2 or M or auto cycle 1-2-M
Adjust Manual voltage: slow click .1v increment down
Adjust Manual voltage: HOLD: 1.0v increment down
Both Left & Right button HOLD
– “M” Auto Mode (AUTo) match rqd voltage
– “M” Manual Mode (NOT) adjust out voltage
Bottom: – button hole “ON/OFF”
Charging Ports:
IN 1 – 2.1mm barrel 18-20V 2.0A max
IN 2 – micro USB 5v – 12v 2.5A max (very slow)
Output Ports:
1 = USB 1 = 5.27v ( QC2.0; 5.27v 2.5; 9V 2.2A;12V 2A ??)
2 = USB 2 – 5.25v 2.5A
“M” = 2.5mm, manual adjust 0-24V
Micro USB charging port, 5v 2.5amp max (left side)
internal loss is about 2-5mah / day
charge time at 18v 2A is 3 hrs.
With no load, Auto shutdown after 60 seconds.
Surface Pro 4 requires 15v from output 'M'; will run 5 hours
Batteries groups of 4: 1,2,3,4 5,6,7,8 in these positions:
48 51
37 62
——————– cut here ———————-
Is this still your favorite 18650 power bank? I'm currently looking into getting QD188-PD, the USB-C version.
Where did you buy the Qidian Li-ion Powerbank QD188? Can't find it anywhere available right now. Quite versatile and handy thing.
Can you recommend a good and truly working 3S/4S balanced BMS Protections Circuit from a cheap place like ebay or is that totally impossible?
I've seen that many are marked as BMS but they ain't 🙁
Have you done any videos on the blackweb 18200mah power bank?
Based on your videos on these chargers I bought this one and love it. So handy.
where is the power bank case?
How long have you been using it? is it good?
Can it supply 5 amps through DC as claimed ?
Does anyone have a link to this power bank as i can only seem to find them on toabao