Comparison · Chargers
CHOETECH Q4004 or ZC823 v13 (ZC823P)
Two models side by side: measurements taken by the author in their reviews, and their conclusions. The better value in each row is highlighted.
In brief: Based on review measurements: Test current: ZC823 v13 (ZC823P) (5 A vs. 3.5); Ripple: ZC823 v13 (ZC823P) (65 mV vs. 200).
| Model |  CHOETECH Q40042020Read review → |  ZC823 v13 (ZC823P)YZXstudio · 2019Read review → |
|---|---|---|
| Power, W | 60 | 100 |
| Test current, A | 3.5 | 5 |
| Ripple, mV | 200 | 65 |
| Protection, A | 3.5 | 3.1 |
| Review conclusion | With reservations | With reservations |
Only in one review: Voltage 20 V (CHOETECH Q4004); Current 3 A (CHOETECH Q4004); In test 70 W (CHOETECH Q4004); Under load 20.22 V (CHOETECH Q4004); Efficiency 90 % (CHOETECH Q4004); Temperature rise 100 °C (CHOETECH Q4004).
CHOETECH Q4004: Delivers up to 70 W steadily, but gets quite hot at maximum power and has some minor drawbacks.
ZC823 v13 (ZC823P): The board supports several protocols, but the author could not get the claimed 100 W; the usual maximum was 3.1 A.
Figures were taken from the review text and checked against the quoted passages. Measurement conditions differ between reviews, so read the reviews yourself before buying. Prices at the time of review.
