You should know 2 things about your EV before to buy home or mobile charger for it:
1. What is max current (power) your EV battery pack can accept. Usually it is 32A max or 240VAC*32A=7.68kW of the power. Tesla S can accept up to 80A. If your EV accepts 32A max than you should buy 40A Charger for it. See the list of the best chargers
2. If you plan to charge more frequently out of your apartment than you should buy the mobile charger. If you have a house (or a garage) with solar panels than buy a stationary charger that will save you a money: your EV's battery pack will live longer because you do less fast charging and you have cheaper electricity at home than it cost to charge your EV at public charger (it may be 2 times). If you have solar panel than it is FREE charge for your EV!
Charge your EV:
1. @Home: use (240VAC*30A=7.2kW) dryer outlet (overnight charge) or regular wall outlet (slowest charge). You need an adapter: from your dryer outlet to your EV charger plug, that will cost for you about $30-$50 depends from the cable length
2. On trip:
a. Public EV chargers, samaritans electrical outlets or common NEMA 14-50 (240VAC*50A=12kW) RV parking outlet. You should download an app (eg. PlugShare) to your mobile phone to find those.
b. Use small electrical generator or Solar Panels with micro-inverter.
c. Use well known apps to locate public chargers: PlugShare, Open Charge Map,Alternative Fuels Data Center or Tesla.com/supercharger web-page
3. In emergency situation: "Only electrician" can connect you to the electrical pole wires using especial hooks-connectors or You can tow your car in drive gear mode with LOW SPEED using strong enough especial cable. Some manufactures do not recommend to tow-charge an EV. If the max towing speed of your EV determined by manufacturer! It is the same physical process of an EV power regeneration as you driving a downhill that is under on-board computer control but in most cases the tow-charging somehow out of the control of your EV computer and almost all manufacturers do NOT recommend it! Here is video of a speed-controlled tow-charging-success of Tesla Model 3 with no more than 20mph. But if something will happen with this white Tesla 3 in the future while the car under the manufacturer warranty Tesla Corp. may say: "Great and bold video, we like it, but we are voiding your warranty because this problem may related to the tow-charging.."
Any traction battery pack manufacterer recomends to fast charge the battery to 80% and drive. Even with slow overnight charge a manufacturer does not recomend to charge it to 100% moreover if you will not travel a long distance next morning. A fast charge to 80% prevents your battery pack to overheat and be more healthy. It is not good for the pack health to pump electrons 'to fast' using a fast charger. An EV on-board computer stops to charge it at 80% or sometime little bit earlier according of the battery temperature and other conditions to make your batteries livespan longer.
It does not convert the voltage, but it controls the AC current and protects you. The EVSE has a computer inside that runs safety J1772 protocol. It is responsible for your and yours EV safety. Eg: You can start to charge your EV with 240VAC while you standing in water in heavy shower and wind, you are 100% wet! You should not have any fear to be electrocuted while you are wet and you see green safety light is on at any public charger. Also it never overcharge your EV batteries and it increases and decreases amperage according your EV on board computer requirements and temperature measurements. Almost any EV on Earth has J1772 protocol (and connector) for level 1 and 2 overnight charging. The fast Level 3 chargers are more expensive and incompatible with each other and sometime it is an optional for less expensive EV. You can charge your EV anywhere on earth on any public chargers with J1772 plug versus level 3 fast chargers, those public chargers have different plug for each country even Tesla Superchargers have different plug in each continent. Modern level 3 EVSE have 900VDC dangerous voltage that may instantly ashes any wet human if it would run w/o the safety protocol. The safety protocol is checking first - ground, second what did you connect to it and also other things and only after it is recognized the EV and all necessary specification, it turns on itself. If you disconnect a plug the EVSE dangerous voltage turns off itself during one millisecond! It has the same protection principles as 120VAC hot GFCI outlet mounted next to the water facet in your kitchen.
No, because It is not just simple wiring adapter like a Tesla to J1772. Communications protocols are different for
those fast chargers and you need a real time protocol translator based on a good processor (as a computer processor).
FYI: Tesla Corp. has created Tesla to CHAdeMO adapter (~$450) with processor and software inside.
An electrician can make during 20 minutes any wired adapter that will connect eg. your dryer outlet to your charger (EVSE) plug. CCS is only competitor to the Tesla Supercharger. Tesla made the CHAdeMO adapter to promote the fast charger and fight the main CSS competitor. To make an adapter it is make real time protocol translator. Eg. an Arduino with an 'proprietary translator software' can do it. It is much easy to translate CCS J1772 protocol to Tesla then CCS because a Tesla charging protocol based on J1772 protocol, that why you can charge a Tesla from any public J1772 charger just using simple adapter with few wires inside, provided by Tesla with any Tesla car.
Yes, only one time, on mount road, uphill. Did not make my destination just by one mile. During the last 2 decades I draw
my Nissan Leaf, Tesla M3 and Toyota RAF4 with NiCd batteries.
"Usually, people who stuck w/o gasoline - they stuck w/o electric energy!"
Do not drive from 100% to 0% and measure the driven distance. It is dangerous for your battery!
Ask your manufacturer to measure the degradation if you have some doubts and you are not a technical person.
Here is excellent poular links to follow
Few labs in 2019 tested a modern Li-ion cell for 1 million miles with degradation approx 50%. Even in a Mercedes ICE car 'everything' has been replaced after a half million mile and it's frame and body only may drive to 1 million. Some Electric motors works 24x7 a 100 years on water pumping station replacing bearings and brushes. All modern electric motors are brush-less, have a composite bearings forever and life time warranty. EV traction pack usually has 50-75 k-miles warranty of 20-30% degradation depends from manufacturer. For more explicit info on a battery visit batteryUniversity.com