The Hummer EV uses a 200-kWh Ultium battery pack.
Built on GM's Ultium architecture, the 200 kWh pack powers both the pickup and SUV variants, enabling high-speed charging and strong performance. Range and features vary by trim and configuration.
Battery size and platform
The following facts describe the battery size and how the Ultium platform is used in the Hummer.
- Battery capacity: about 200 kWh in the Hummer EV lineup
- Platform: GM Ultium, a modular, scalable electric architecture
- Voltage philosophy: 800-volt architecture to support fast charging
- Body styles: available in at least two configurations—the Hummer EV Pickup and Hummer EV SUV
- Drive configurations: higher-performance trims use multi-motor AWD (including three-motor setups)
Taken together, the 200 kWh pack is the defining energy storage for the Hummer EV lineup, enabling its range and charging performance across both body styles.
Charging and performance considerations
The following notes explain charging speeds and how the battery translates to daily use.
- DC fast-charging capability: up to around 350 kW on compatible high-powered chargers
- On-board charging: slower AC charging from home or public Level 2 sources
- Charging architecture: 800V system designed to deliver power quickly and efficiently
- Real-world use: regenerative braking and thermal management help preserve pack health and range during off-road use
In short, the Hummer EV’s 200 kWh Ultium pack, paired with 800V architecture and fast DC charging, underpins its claimed performance and off-road capability. Exact range and charging times vary by trim, configuration, and driving conditions.
Model differences
Notes: The pickup and SUV share the same core battery technology, but weight, aerodynamics, and drivetrain options shift their real-world range and efficiency. Top-tier trims with three motors deliver the strongest acceleration and torque, while other configurations emphasize efficiency and value.
Summary
The Hummer’s battery size is a 200 kWh Ultium pack, used across its pickup and SUV models. This large energy store, together with 800-volt architecture and high-speed DC charging (up to about 350 kW), defines the vehicle’s performance, range potential in the low-to-mid 300s miles, and charging behavior. Actual numbers vary by trim, configuration, and conditions.
Can I use a group 24 battery instead of 35?
Group-24, Group-27
The Group 24 and 27 Batteries are mostly found in older American Cars, and some Hondas, GMs and will be often used in boats. They are basically the same size except for length. Our Group-35 can be used in place of a Group-24; it is only 1-inch shorter left to right dimensions.
Are group 48 and H6 the same battery?
This group size 48 (L3/H6) battery is engineered for a precise fit in compatible vehicles. The Flooded Lead Acid chemistry provides durable and consistent power. Backed by a 18 Month warranty, this battery offers both performance and peace of mind.
What type of battery does a Hummer H2 take?
Optima – Yellow Battery : H6 Group Size, 800 CCA, 928 CA, 140 Minute Reserve Capacity, Deep-Cycle (Part No. DH6)
What battery does a Hummer take?
Most Hummer models use larger batteries, such as Group Size 86 or 79, depending on the model and year.