A lot of the TA and TA/2 cars are running the lithium batteries too. Definitely less weight, but also less prone to vibration damage and more consistent voltage available through a wider charge range. This is the steering wheel dash in a 900HP TA Camaro during the warmup cycle. We take the oil temp to 130, do a leak check, header tube temperature check, and verify data collection before going out.
Lithium battery voltage rarely varies more than 0.1 volts.
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