"plug-in mild hybrid" upgrade

[NiHaoMike]

Originally Posted by cfg83

MetroMPG -



If it's a standard 120 volt connection, you could use one of those kill-a-watt gizmos to meter your electricity and then add the "virtual gallons" to your fuel log :

Convert gallon [U.S.] of automotive gasoline to kilowatt-hours - Conversion of Measurement Units



CarloSW2

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I wonder what prices it was based on. I don't think it would be accurate as there's no way to enter gas and electricity prices.

As for cheap batteries, some used ones that are still in OK condition should be cheap enough and work well.