Readers ask: Battery Cable Protection When House Battery Is Removed From Motorhome?

Which battery cable must be disconnected first when removing the battery?

When disconnecting the cables from the old battery, disconnect the negative first, then the positive. Connect the new battery in the reverse order, positive then negative.”

What happens when you disconnect the positive battery cable?

when the positive terminal is disconnected, it will arc when it comes into contact with just about any unpainted metal part of the car. The terminal doesn’t have to touch a metal part directly, it can (and will) go through metal tools (like a spanner, screwdriver or pliers).

Should I disconnect my RV battery when plugged in?

The disconnect should be turned off when you store your camper so your batteries discharge more slowly. Doing that when you are plugged into shore power also disconnects your batteries from the charging circuit of your power, meaning that even if the rig is plugged into shore power, your batteries will not charge.

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What happens if you don’t disconnect the negative battery cable?

The electrical power in a car’s engine is activated by the battery. Contact between the negative battery terminal and the battery, even if the cable is not clamped onto the battery, may reactivate the electrical system within the car.

Is it OK to leave car battery disconnected?

Disconnecting your battery from your car before you leave could potentially save you from having to replace it with a brand new one when you return. “Some of these new cars have so many electronics and modules, the battery could get drained in a matter of weeks if left alone,” he said.

When should you replace RV batteries?

RV batteries can and should last 5 to7 years, rather than 1 to 2 years. Now you can use the money you save on replacing batteries and take an extra RV trip or two this camping season.

Does RV engine charge house batteries?

Two main power sources charge your batteries: your RV’s generator and shore power. The converter or inverter on your RV will use the power from your generator to recharge your house batteries while it is running.

When should I replace my RV batteries?

When a battery reads below 12-volts it is at or below a 50% state of charge. You can measure the voltage using a digital voltmeter. Measuring the voltage gives you a quick picture of the batteries depth-of-discharge, so you know when the battery needs to be recharged.

Is it OK to just disconnect the positive terminal?

You will be fine. Disconnecting either cable works. The reason they say to disconnect the negative and not the positive is because while taking the positive connection off with a wrench if you happen to touch anything with the wrench while it’s on the positive terminal it can arc and be dangerous.

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What happens if you disconnect the positive battery terminal first?

It’s important to disconnect the negative side of the battery first, otherwise you can cause an electrical short if the positive is removed first.

What happens if you connect the negative terminal first?

Negative pole first: Whole car (except a few parts like the positive pole) are connected. Any mistake with the other lead will lead to a short. If you mess up by touching the car with the other lead nothing will happen.

Is it bad to leave your RV plugged in all the time?

If you leave your RV battery plugged in after it’s fully charged, it can deplete the cells’ electrolyte levels. Overcharging is common when RVs are left plugged in without a battery tender for months on end, so be careful, especially when storing RVs over the winter.

Should an RV inverter be left on when plugged in?

RV inverters can seem like relatively complicated electrical devices, and it’s hard to know when they should be left on or turned off. For most installations, an RV inverter should be turned off when not in use. This is because an inverter can drain power from batteries even when there is no power being used.

Should I disconnect my RV battery for winter?

When you store your RV during the offseason, you also need to remove your battery and keep it in a warm location. If you leave it in, the water in your battery may freeze when the temperature drops too low. This happens because a battery loses its sulfuric acid when it discharges and leaves water behind.

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