GetOffYourGas
Well-known member
WetEV said:LeftieBiker said:I don't read those sites as much as you might expect so I haven't noticed. Why don't I read them? See above. Also things like referring to a bigger battery as 'providing more horsepower'...
A bigger battery can provide more horsepower.
There is a limit as to how much power you can take out of a given battery. It is often expressed as the "C rate", which just means the "capacity of the battery in kWh)" / "power charge or discharge".
To get to higher horsepower, you need a larger battery, or a battery that can withstand a higher C rate. Or both.
Exactly. And BEV batteries are engineered for Energy density rather than Power density. PHEVs use Power dense batteries so they can propel the car with battery only despite a smaller capacity. This is also why many of the hot rod conversions use a Chevy Volt battery - lots of power, relatively little weight. It doesn't go as far, but it doesn't matter. It only needs to go about a quarter of a mile...