evchat

fast, useful answers to your electric vehicle questions

ChatGPT can get you an answer fast, but it isn’t as useful as it could be on a topic like this one: A prompt with context matters, and ChatGPT’s outdated snap spot of the internet leaves out lots of recent content. I’m Matt, a human who’s been answering questions about EV’s since I started building motorcycles like this one 15 years ago. But I’m kinda slow at answering questions.

evchat.io is an experimental tool that tries to fix these problems by getting ChatGPT and a human with content expertise to work together on fast and useful answers to your EV questions. Here’s how it works:

  1. Ask me a question. I’ll make a prompt for ChatGPT and send you an email or text with what ChatGPT and I get to after a few rounds of tuning. Timing: 1-24 hours. It’s free, so just got with me here.
  2. If your question’s others have asked, I’ll add stuff ChatGPT misses, like a sketch, links to newsletters & vids, maybe one I make. I’ll post stuff answers here and send you a copy.

That’s it, for now. Let me know how you think this could be more fun or useful. Thanks, Matt

ev chats

CategoryNameAnswer 3.0
Large EVs
Charging curves for electric vehicles (EVs) depend on factors like the battery, charger type, temperature, and initial state of charge (SoC). Batteries may not reach the constant current phase immediately due to low SoC or suboptimal temperature. Temperature management is crucial, as both cold and hot temperatures can negatively affect charging efficiency and battery life. Battery thermal management systems (BTMS) help maintain optimal temperatures by preheating or cooling the battery. The charging curve can be divided into the following phases: 1. Initial charging phase: Charging begins at a lower current based on the battery's SoC and temperature. The rate increases as conditions improve. 2. Constant current phase (fast charging): Once optimal conditions are met, the charging station delivers a constant current for the quickest charging. 3. Tapered charging phase: As SoC increases, the charging rate tapers down to prevent overheating or damage. 4. Constant voltage phase (topping off): At high SoC (around 80-90%), the charging process slows down, switching to constant voltage mode to protect the battery from overcharging. Understanding these phases and factors helps EV drivers optimize charging times and maintain battery health and efficiency.

evchat.io is brought to you by mynextelectric.com