Battery Charging

Onboard Charger

I’m planning on having an on-board battery charger to allow me to take advantage of charging stations.

Charging Station Map


J1772 Combo Socket

J1772 chargers are usually called “level 1” or “level 2” chargers. These are far more common but charge cars far more slowly than CHAdeMO chargers. Level 1 chargers provide up to 16 amps at 120 volts (1.9 kW). Level 2 chargers provide up to 80 amps at 240 volts (19.2 kW). Chargers from ChargePoint are typically 6.6 kW Level 2 J1772 chargers. For comparison, a standard household outlet can provide 12 amps at 110 volts (1.4 kW).

J1772 Plug and Socket:



The people at sell a “level 1” J1772 socket:



CHAdeMO Socket

CHAdeMO chargers are usually called a “DC Quick Charge” “Supercharger” or “Level 3” chargers. They can provide up to 62.5 kW of high-voltage DC power.

CHAdeMO plug:




CHAdeMO socket (left) on a Nissan Leaf:



Tesla Supercharger Socket

Tesla has it’s own proprietary charging socket design.

The Tesla Superchargers are capable of an output of 250 amps at 400 volts (100 kw). Tesla sells a CHAdeMO-to-Telsa adaptor, but no one makes an adapter the other way around.

Tesla Plug:


Tesla Socket:


Will Martin is an energy analyst and expert on peak oil and alternative currencies. He is an MBA graduate of Cornell University, where he was a Roy H. Park Leadership Fellow and concentrated on studying sustainability in business through the school’s Center for Sustainable Global Enterprise. Prior to his MBA, Will worked in the energy industry, living in Singapore, Houston and Dubai. Will is a recipient of the 2012 “Pioneer Award” from the Association for the Study of Peak Oil and Gas (ASPO-USA). He currently works as a carbon trading commercial adviser in the San Francisco Bay Area. Will is a bitcoin enthusiast and in 2014 published the book “Anonymous Cryptocurrencies,” which became a #1 best seller in 3 Amazon categories and was the first book to be sold on a decentralized marketplace.

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