Hummer EV Review and Charging Costs

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Introduction

• The Hummer EV is described as a remarkable, albeit excessive, vehicle.
• Massive battery pack but low efficiency, averaging 1.1 miles per kilowatt hour.
• Serves as a halo product for Ultium, showcasing GM's electric capabilities.

Battery and Regeneration

• Features a double-stacked battery pack in the tri-motor version.
• Achieved 400 kilowatts of regeneration in a hard braking scenario.
• Battery pack details:
  • Usable capacity: Approx. 212 kWh
  • Gross capacity: 246 to 250 kWh

Charging the Hummer EV

• Focus of video: Determining charging costs rather than a full charging curve analysis.
• Mention of pre-conditioning the battery to optimize charging.
• Charging stations often incur costs due to energy losses.

Complimentary Charging Session

• Discovered a complimentary station at EA, allowing free charging.
• Charged the Hummer from 0% to 100% to calculate costs.

Home vs. Fast Charging

• Home charging typically uses AC, leading to different loss calculations.
• Fast charging costs vary significantly based on rates and power levels.

Driving and Battery Management

• The vehicle does not show the state of charge (SoC) until turned off.
• Reported range: 300+ miles with 35-inch tires.
• Emphasized not to regularly charge from 0 to 100% due to stress on the system.

Tips for Charging

• Suggest charging only until reaching the next station at 5% SoC.
• Avoid full charges when possible to reduce stress on the battery and time at chargers.

Charging Session Results

• Took roughly 2 hours and 40 minutes to charge from 0% to full.
• Delivered 224 kWh to the car during the session.
• EA rates and comparison to home charging rates:
  • Walk-up rate: Over $100
  • Membership rate: ~$70
  • Home charging: $16 to $29 based on location

Additional Observations

• EA's per-minute pricing can make high-speed charging surprisingly affordable.
• At-home charging losses are typically lower, possibly reducing overall costs.
• The complexity of cost evaluations is due to varying rates and charging speeds.

Conclusion

• Charging costs for the Hummer EV can vary widely, from free to over $100 depending on conditions.
• Suggested optimal charging habits for efficiency and cost-effectiveness.
• The video concludes with a note on the importance of understanding charging expenses and strategies for EV owners.