# How long will a 12-volt battery last with a 1000 watt inverter?

## How long will a 12-volt battery last with a 1000 watt inverter?

34 minutes
How long will a 12 volt battery last with a 1000 watt inverter? A 12 volt 100Ah deep-cycle battery with regular depth of discharge 50\% would run a fully-loaded 1000 watt inverter for 34 minutes.

Can my alternator charge two batteries?

You can run two batteries on the same alternator. The alternator registers these two batteries as a single large battery and charges them the same. The batteries self-regulate the amount of current they take as they charge. This means that a single alternator is effective for multiple batteries.

Does adding batteries increase amp hours?

Connecting batteries in series increases voltage, but does not increase overall amp-hour capacity. All batteries in a series bank must have the same amp-hour rating. Connecting batteries in parallel increases total current capacity by decreasing total resistance, and it also increases overall amp-hour capacity.

### How many watts can a 12V battery handle?

A 12 volt 1ah (amp hour) battery is rated to put out 12 watts for 1 hour before it is fully discharged. Or it could do 24 watts for a half hour. A 12 volt 2ah battery can put out 24 watts for 1 hour or 48 watts for half an hour.

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How many amps does an alternator charge a battery at?

Car batteries range from 40AH to 110AH, and alternators range from 45 amps to 200 amps. If you are using a battery charger, a 10 amp charger will take 4 to 11 hours to fully charge the battery, a 2 amp charger will take 2-4 days.

How do I charge my alternator with 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.

## How do I increase the amperage of my battery?

By placing multiple batteries in parallel, you do increase the capacity, and you CAN increase the available current. In fact, most battery packs have multiple cells both in series, to increase the available voltage, as well as in parallel, to increase the available current.

Can you connect different amp hour batteries in series?

You cannot connect batteries of different amp-hours in series with good results. We strongly recommend you DO NOT attempt to mix battery sizes (amp-hours) and connect together. Due to differences in battery management systems and battery cell counts, there may be a charging and voltage discrepancy between batteries.