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Will a bigger battery hurt my alternator?
As several people have stated, no, a larger battery will not harm your alternator (or other electrical components), provided that it is putting out the correct voltage.
Can a battery destroy an alternator?
I believe that in general a battery does not necessarily kill an alternator. If a battery is low on charge, the higher voltage output (around 14v) will charge the 12.6 volts your battery is supposed to have. Therefore, an uncharged battery is nothing more than an additional load on the alternator when below 12.6 volts.
Does the alternator charge the auxiliary battery?
You can easily use your alternator to charge your second (auxiliary) battery simply by connecting the positive terminals of both batteries so that they’re in parallel.
Do I need a new alternator or battery?
If the engine starts but dies immediately, your alternator probably isn’t keeping your battery charged. If a jump starts and keeps your car running, but the car can’t start again off of its own power, a dead battery is likely your answer.
What will destroy an alternator?
Driving a vehicle through water that is deep enough to splash or flood the alternator can damage the alternator shaft bearings and possibly the brushes and electronics inside the unit as well. Water can also cause corrosion that over time will damage the wiring and bearings inside the alternator.
Can you charge Mercedes auxiliary battery?
Mercedes-Benz auxiliary battery is a rechargeable 12V 1.2Ah battery. The alternator charges the auxiliary battery when the engine is running. If the battery is still good, your only option is to remove the car’s battery and charge it with a 12 Volt Smart Charger, then reinstall.
Can a Smart alternator charge an auxiliary battery?
However, with a smart alternator, when the output voltage drops to below 12.8V a VSR would disengage, meaning that the auxiliary battery would have significant periods where it wouldn’t be charging, even though the engine would be running (some models of VSR may not engage at all, dependent on the on-board software).
Can you run two batteries on the same alternator?
You can run two batteries on the same alternator. Alternators protect against excessive current drain and aren’t affected by multiple batteries. When you connect the batteries, the voltage equalizes. This means that the lower voltage battery sucks power from the other.
Do you need high voltage to charge alternator?
Please understand that when charging from a vehicle alternator one of your biggest enemies is voltage drop, you need to have the highest possible voltage at the auxiliary battery, this will allow it to charge as quickly as possible, and as fully as possible.
Why do we need auxiliary batteries in cars?
So over the years our demands on the humble auxiliary battery have increased to the point that we need much more usable energy, and over a longer period of time, and we need fast and safe ways to recharge our batteries.