Question about 1994 Jeep Cherokee

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My battery indicator is in the red..
measured 11.9 volts at cold off battery and 9.9volts running.
alternator is shot but is it safe to still drive in the red?
if i do not use any radio, air con, power win,,,etc.can i continue to drive on?

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No this is not safe to continue to operate. The computer in these vehicles generally requires about 10 volts to operate as they should.

Under powering them can spike them and cost you an ECM.

This constant draw on your battery is also not good for it. After about 4-5 cycles of charging and driving you will find the battery coming back for more; less and less. Automotive batteries are not designed to withstand complete drain and repeat charging like deep cycle batteries and will fail in a short period of time in these drain/recharge cycles.

I would not operate this vehicle under anything less than an emergency situation.

Posted on Jun 02, 2009


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