ZeusDriver
Well-known member
- Joined
- Dec 1, 2025
- Threads
- 8
- Messages
- 165
- Reaction score
- 147
- Location
- East Coast, USA
- Vehicles
- 2022 Lightning
- Thread starter
- #61
I pretty much agree, word for word.Honestly looking at the Ram Charger I feel like all the specs are just bizarre.
70+kWh battery? Why? If you're going to give it an EREV why not give it a 30kWH battery for around town or daily driver? Seems VERY costly.
"Can power your house for 30 days at 10kWH / day".
Again kind of a bizarre number. If you go 30 days without power you have a bigger problem in your community than electricity. And 10kwH/Day is a laughably low metric.
It just seems to me they are building a tool that is overly engineered in a lot of ways. And I'm not even counting EREV as overengineering it. The specs just seem all wrong. I suppose it has to do with keeping the towing in line.
I think this thing is going to be very expensive, and even more of a niche use case than Truck BEV's which is already proving to be more niche than automakers hoped.
I imagine that 70kWh may be the lowest value that provides the desired HP without straining the battery. They probably want 500 HP because it sounds good to marketing people. So, say 400 kW, allowing for inefficiencies. That would be a 5.7C discharge rate, which some battery chemistries would have a hard time producing reliably. (Many drop-in LiFePO4 batteries are BMS-limited to 1C discharge, in the interests of battery life.)
The house powering thing is probably marketing department driven, to show that having an engine allows you to run your house longer than if you "only" have 130-200 kWH or so. Thirty days with you engine running? I live in hurricane alley, and have never even had to plug in to my Lightning for backup power for ten minutes, let alone a month!!!???
I would not be surprised that the extension of the reliability testing had to do with finding that sustained power from the generator is inadequate for heavy duty towing. Electronics are pretty efficient these days, but the losses of the generator itself (and the inverter) makes less hp available at the wheels than a standard transmission.
The Volt had "mountain" mode, which would charge the battery in preparation for long climbs, so that the total HP available would be the combination of the ICE and the electric motor. Never used it in my Volt, but I was aware that my little microcar (which was an EREV) would have to slow down in long pulls even with just the driver on board. (Never ran into that situation, but I lived and tested the car in the east. )
I wonder how the Ranger PHEV is doing in Australia.
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