Both A and B. Cut the cords for the 12-volt batteries. Cut the red last after the black. Make sure the cables are doubly cut to prevent them from coming back into touch due to cable memory.
These 12V auxiliary batteries can be found either under the hood or in the trunk, depending on your vehicle's make and model. Typically, they are built out of lead-acid or absorbed glass mat (AGM) Using the PHEV's standard portable charging connection is the most practical method of charging a hybrid automobile battery. Even though they don't have the fastest charge rates, these chargers can be plugged into any 120-volt household outlet, which makes them useful in an emergency. The Mercedes-Benz Vehicle Battery Limited Warranty, which can be extended to the manufacturer's warranty, covers the auxiliary battery.
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