Recently I've been searching for a cost effective Level 2 Charger, I searched any & everywhere on how to go about this and what charger I should buy. After a lot of research I discovered that Clarity owners can charge at a much faster rate when compared to your current slow ~15 to ~18 hour level 1 charge time by using your STOCK OE HONDA 120v CHARGER AT 240 VOLTS !
You can fully charge up your Clarity in about ~5 1/2 hours from 0%, all for as little as $20 dollars if you DIY, or $45 dollars if you buy the needed Pre-Made conversion plug.
Your Honda Clarity 120 volt charger will support 240 volt charging without any issues because it's really a DUAL VOLTAGE CHARGER. So I was now on a mission to build my own 25 ft 120v to 240v conversion extension cord based on my personal needs. My conveniently located 240v dryer outlet was a NEMA 10-50R (receptacle) and I needed this to be a little closer to my car, so after taking some measurements I decided on a 25 ft length of the best 10/3 cord I could buy. I went with a 10/3, 10 AWG, SOOW, 600V cable that's manufactured by Southwire here in the USA. I purchased the cable, Nema 5-20P Amp plug, & NEMA 10-50P Amp plug from Ebay, everything was delivered in about one week.
I took my time and studied up on electrical connections, then once everything showed up I moved forward with my 25 ft conversion extension cord build. My build took roughly 20 minutes to carefully cut, trim, and assemble all 3 components together. Now the moment was at hand....Time to go plug it in !
First, I once again carefully examined my current perfect working 120v charger in action. Once I did that I noted my current charge time, now it was truly the moment of truth. I walked over & unplugged my external blue charging handle and put it down, then I unplugged the stock OE charger from its 120v connection & plugged it into my new 240v connection. Everything instantly lit up the same exact way, there were NO fault indicators on the charger. So I walked over & plugged the blue handle of the charger into the charging port, No Issues, No Drama, just a very happy charging light indicator showing everything was great !
FAST ~5 1/2 HOUR CHARGING FOR $20 DOLLARS / SCORE !!!
DIY / Make Your Own $20 Dollar Conversion Plug:
1) NEMA 5-20R (Designed to accept 10 gauge wire) $10 shipped:
2) 6 Foot 240v (10 gauge wire) Dryer Plug*, $9 NEMA 10-30P:
* I use the NEMA 10-30P "Dryer Plug" as my example because this is one of the most common plugs people will have.