How long will a 60ah battery last

Similarly, we can calculate the maximum current as well as backup time for different Ah ratings [33Ah, 55Ah, 65Ah, 60Ah and 85Ah] of car batteries of class A 12V 33Ah Car battery is guaranteed to provide 1. And it can provide 20 hours of backup for a maximum load of A 12V 55Ah Car battery is guaranteed to provide 2.

And it can provide 20 hours of backup for a maximum load of 33 Watt [2. A 12V 65Ah Car battery is guaranteed to provide 3. And it can provide 20 hours of backup for a maximum load of 39 Watt [3.

A 12V 85Ah Car battery is guaranteed to provide 4. And it can provide 20 hours of backup for a maximum load of 51 Watt [4. Yakub Ansari. A: nope Report Abuse. Didn't get the right answer you were looking for Post your question. Safe and Secure Payments. Easy returns. You might be interested in. Exide Ah New Insta Brite. The output of a fully charged battery is An ampere hour abbreviated Ah, or sometimes amphour is the amount of energy charge in a battery that willallow one ampere of current to flow for one hour.

This means that a battery has a A. Useful only at recommended temperature conditions. If your battery is reading 0 volts, chances are the battery experienced a short circuit. If the battery cannot reach higher than If the battery is fully charged according to the battery charger but the voltage is Keep Rust Away from the Battery: Always, keep the battery terminals rust and corrosion-free. Do not Overload the Battery: To provide the electricity supply during a power cut, the UPS battery uses the energy stored in it.

If you fill one end tank using a garden hose or drain the other end using a garden hose it will take some time for all tanks or cells to be at equal levels. The time it takes to equalise is something you will get used to, you certainly don't panic if your voltage drops down while you use the microwave for a couple of minutes inverters can consume quite a bit of power while in use.

A low load that is drawing power no faster than the battery can equalise will give a reasonable value for the Charge remaining , by reading the voltage. Be aware also, that a battery under no load at all may still show 12V, but have little or no amp hours left. There are a few advanced gauges that will calculate your capacity based on actual recent usage, but the cost is still beyond most recreational users.

They are more like a mini computer taking and recording sample data and making predictions of capacity remaining and how long it will last if you continue to use it at the present rate. While the volts is indicative of how much power is left, it is not like a fuel gauge. Petrol left in a fuel tank would show up as a straight line from 13 to zero in the chart above. They accept charge easier and faster than wet cell batteries.

They are able to recover better from a lower discharge. Yes, they cost more than Wet Cell batteries, but with correct usage can last twice as long. If your predicted usage is much lower than would be supplied by these larger AGM Deep Cycle batteries, it can be a cheaper option to use a Wet Cell battery.

If you leave V for only one or two days at a time, and you use only LED lights and say a water pump, you should manage quite well with a cheaper Wet Cell battery. Caravans Plus does not sell Wet Cell batteries as these are harder to ship and are readily available in most locations.

Wet Cell batteries need to be upright and located in a ventilated area that is not in the living area.

AGM batteries are completely sealed and can be used at any angle. They can be placed under your bed without risk. Batteries say ah battery have been tested at a given discharge rate of 20 hours. The specifications should indicate this. The bad news is that if you exceed that discharge rate quoted you will see a significant drop in capacity. If you need more than 5 amps per hour you should consider having two or even more batteries.

The good news is if you use less than the 5 amps per hour, you can get more than the quoted ah. Figure 2: Battery capacity decreases as the rate of discharge increases. Also if you are charging your battery from your solar panels, you need to ensure your solar regulator is up to the job. Voltage drop is one of the biggest problems in getting the battery in your Caravan or Camper trailer fully charged from your vehicle alternator.

You can never charge the battery more than the voltage that reaches it through the copper cables. The longer the cable, the more the voltage drops. This can be compensated to some extent by increasing the cable x-section but even this has limits. With your trusty voltmeter you can check what voltage your alternator is producing by starting your vehicle and connecting your voltmeter to the battery terminals.

Ensure electrical accessories are NOT switched on. This should read from Figure 3: Less charge due to voltage drop Next test your voltage at the rear of the vehicle with the engine still running. This may be at an Anderson plug or the auxiliary wire in the trailer connector. Record this voltage and note any voltage drop. My vehicle has heavy duty cables and only dropped 0. Next take a reading where the auxiliary cable goes to the RV battery or battery charger. My caravan has lighter wiring and the voltage loss was another 0.

The total voltage drop was 0. When you look back at Figure 1, you will see that a reduction 0. There are two solutions to this problem. First you can increase the size of your copper wires so that the voltage drop is less. Second you can add a voltage booster that will step up the voltage to compensate for the loss.

This must be placed between the alternator or vehicle battery and your RV battery so that current coming in will reach the battery at a higher voltage and thus increase the speed of charging and get more amp hours into that battery. This rule of thumb allows for greater discharge on occasions, e. Calculating Your Amp Hours Examine the following chart to calculate the number and size of batteries you will need. You can download a blank calculation form and enter your battery size to determine how long it will last.