Today we're gonna check out ChiBatterySystem's 66v 42.5ah Gladiator compact battery for the Sur-Ron. Previously we were using the Gladiator Gen1 72v 38.25ah battery. We'll talk about the power, speed and range of the 66v Gladiator on both the stock controller and the ASI BAC4000 and then test it out on the road. So let's get to it!

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