685 W TOPCon solar panel with 132 cells. Voc 45.7 V · Isc 18.25 A · TcVoc -0.26%/°C.
Select the panel you want to replace
Panel not in the catalogue?
16 of the 4,444 panels in the catalogue can replace TCL Zhonghuan TCL-MG685DH210-66NT. Before you buy, check your pick in the string calculator with your inverter.
CloseNoticeableLarge differenceTap or click a difference to see what it means for your string.
Small differences within tolerance — safe once verified in the calculator with your inverter.
Match 85–93 % · 3 models
Noticeable differences — the string voltage and current need a careful check.
Match 64–78 % · 8 models
Large differences — a real risk of a mismatched string; prefer a closer panel.
Match 52–57 % · 5 models
String Compatibility Calculator
Verify the replacement panel works with your inverter
Panel Matcher
Find all compatible panels for a specific inverter
Already have panels?
Find an inverter that fits your panel array with the right MPPT range and DC/AC ratio.
How the Algorithm Works
Learn how panels are scored and matched
Voc
45.7 V
Vmpp
37.9 V
Isc
18.25 A
Impp
18.07 A
TcVoc
-0.26 %/°C
TcPmax
-0.3 %/°C
Pmax
685 W
Cells
132
Bifaciality
85%
Length
2384 mm
Width
1303 mm
Thickness
33 mm
Weight
39 kg
The TCL Zhonghuan TCL-MG685DH210-66NT is a 685 W solar panel. Finding a compatible replacement requires matching the original electrical characteristics — particularly Voc, Vmpp, Isc, and temperature coefficients — to ensure safe operation within the same string.
Use the form above to find panels that match these specifications. Then verify the replacement in the String Compatibility Calculator with your inverter.
| Model | Power | Voc | Isc |
|---|---|---|---|
| TCL-MG680DH210-66NT | 680 W | 45.5 V | 18.2 A |
| TCL-MG690DH210-66NT | 690 W | 45.9 V | 18.3 A |
| TCL-MG695DH210-66NT | 695 W | 46.1 V | 18.35 A |
| TCL-MG700DH210-66NT | 700 W | 46.3 V | 18.4 A |
The most critical specs to match are: cell count (must be exactly 132), Voc close to 45.7 V (within ±5%), and temperature coefficient TcVoc close to -0.26%/°C. If Voc differs significantly, the string voltage at extreme temperatures may shift outside the inverter's MPPT range. The replacement finder above pre-screens all candidates by these criteria.
A higher wattage panel usually has a higher Vmpp or Isc, which can affect string voltage and current. Small increases (up to 10–15%) are typically safe if the other electrical specs align. The replacement finder shows a compatibility score — 'Exact match' means the specs align closely. Always verify the replacement in the String Compatibility Calculator with your inverter before installation.
If the replacement has a significantly different Voc or Vmpp, the string voltage may shift outside the inverter's MPPT range, reducing energy production or causing faults. This effect is amplified at temperature extremes: at low temperatures, voltage rises by the TcVoc coefficient. The replacement finder automatically accounts for this — it scores candidates by how closely the electrical specs match the original TCL Zhonghuan TCL-MG685DH210-66NT.