665 W ABC solar panel with 156 cells. Voc 58.86 V · Isc 14.35 A · TcVoc -0.22%/°C.
Select the panel you want to replace
Voc
58.86 V
Vmpp
48.73 V
Isc
14.35 A
Impp
13.64 A
TcVoc
-0.22 %/°C
TcPmax
-0.26 %/°C
Pmax
665 W
Cells
156
Bifaciality
70%
The Aiko Solar AIKO-A665-MAH78Dw is a 665 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 |
|---|---|---|---|
| 655 W | 58.74 V | 14.21 A | |
| 660 W | 58.8 V | 14.28 A | |
| 670 W | 58.92 V | 14.42 A | |
| 675 W | 58.98 V | 14.49 A | |
| 680 W | 59.04 V | 14.56 A |
The most critical specs to match are: cell count (must be exactly 156), Voc close to 58.86 V (within ±5%), and temperature coefficient TcVoc close to -0.22%/°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 Aiko Solar AIKO-A665-MAH78Dw.