Hummer EV SUV Battery Size

[Dragoon]

I've been trying to find the size and usable capacity of the Hummer EV SUV battery and I can't seem to find a definitive answer anywhere. It looks like the Hummer EV Truck has a 246 kWh battery with a usable size of 212 kWh. This is good for an estimated range of about 329 miles.

The Hummer EV SUV has a smaller battery than the truck, but I'm not sure exactly how much smaller. One number I have seen is 170 kWh. I'm not sure if that's the total size or the usable size. Has anyone seen any verified specs on the SUV battery pack?

 

[super8]

That's a good question. I'd be interested in finding that out as well.

 

[roadking]

Do the math -- 24 pack vs 20 pack
246/24*20=205 (Gross)
212/24*20=176.67
329/24*20=274.17

 

[Mumvie]

Do the math -- 24 pack vs 20 pack
246/24*20=205 (Gross)
212/24*20=176.67
329/24*20=274.17

I've been trying to find the size and usable capacity of the Hummer EV SUV battery and I can't seem to find a definitive answer anywhere. It looks like the Hummer EV Truck has a 246 kWh battery with a usable size of 212 kWh. This is good for an estimated range of about 329 miles.

The Hummer EV SUV has a smaller battery than the truck, but I'm not sure exactly how much smaller. One number I have seen is 170 kWh. I'm not sure if that's the total size or the usable size. Has anyone seen any verified specs on the SUV battery pack?

I found this in a different forum:

I might take a crack at it too. Public specs on Ultium are 0.371kWh per cell, 24 cells per module, and 20 modules in the SUV. So 178.08kWh for the SUV and 213.696kWh for the 24-module SUT. If that's true, these have almost absolutely no buffer. Some have claimed that's the usable capacity we're being given by GM and that the 24 module is closer to 240-250, but I haven't seen hard evidence of that. If that were true the gross capacity of the 20-module SUV would be more like 200-210kWh. In Out of Spec's SUT 0-100% charging session they got a little over 213kWh delivered if I remember correctly, which would line up nearly perfectly with the 0.371 but that doesn't take into account any losses charging. Even at 95% efficiency that would be mean only 202kWh actually went in the pack instead of heat losses. I'd be more inclined to believe the usable is closer to 202 and a gross of 213 instead of a usable of 213 and 240 gross in the 24 module like some think.

Note that the 329 range on the 24 module SUT is outdated. After the first year they got upgraded to 381 range. But they seem to consistently deliver > 400 miles.