You will void your car warranty. Hymotion and Hybrids-Plus are the two major third party convertors for PHEV. I don't believe these two companies do Honda vehicles because your vehicle is not a full hybird in that it does not power itself under electrical mode. Before one flames me

about driving at 65 miles per hour without the ICE, I am referring to being able to drive from a complete stop without the internal combustion engine engaging.
Your post is about electric vehicles which is different from what I am referring to.
2005 AWD Escape Hybrid
Best Interstate
tank trip MPG 39.02 (scangauge II) for 402 miles on I-70, 10.3 gallons used over mostly flat terrain. Aug. 2007
Best
Interstate tank trip E30 MPG 34.6 for 271 miles along I-80 in Indiana and Ohio. May 2008
Best multiple road tank trip E30 MPG 36.2 for 202 miles in Southwestern Pa. July 2008.