BATTERY TIP 4 – Never fully discharge a deep cycle lead acid battery! The deeper you discharge the battery the more it will reduce the battery’s total cycle life. We recommend discharging a battery to no lower than 50% DOD, with a maximum of 80%.
How much can you discharge a deep cycle lead acid battery?
Lead-acid batteries can only be discharged up to 50% before irreversible damage occurs. In practice this means that you will only be able to use half of your battery capacity. Semi-traction batteries such as AGM en Gel lead-batteries are often used as Marine batteries for water sports and angling.
How far can you drain an AGM deep cycle battery?
You can discharge it until it won’t even light a few LEDs, but you’ll shorten the life of the battery dramatically. It’s a good rule of thumb with AGMs that you should not discharge them to less than about 12.2v which is about 1/2 the rated capacity.
At what voltage is a deep cycle battery discharged?
They’re rated down to an end point of 10.5 volts. By then, lights get dim and TV picture small. A Specific Gravity of about 1.200 or a voltage of 12.25 to 12.3 means the battery is about 50% discharged. By the time it’s down to 11.8 or 12 volts, it’s almost dead.
How low can you discharge a AGM battery?
80 percent
AGM offers a depth-of-discharge of 80 percent; the flooded, on the other hand, is specified at 50 percent DoD to attain the same cycle life. The negatives are slightly lower specific energy and higher manufacturing costs than the flooded, but cheaper than the gel battery.
How much current can you draw from a deep cycle battery?
There are also many larger inverters. A 2000W one will provide enough power to run power tools or even an electric jug, but at full output they will draw from the battery about 150-200 amps.
How many cycles can a deep cycle battery take?
A battery undergoes a deep cycle whenever more than 20% of its stored energy is consumed before it is recharged. Used correctly, deep cycle batteries can provide 200 to more than 3000 discharge/charge cycles. Starting batteries are not designed for sustained discharge and will last for only 50-60 use cycles.
How far can you discharge a 12v deep cycle battery?
Most deep cycle batteries are built to handle a 50% depth of discharge, but some can handle up to 80% discharge.
Should you completely discharge a deep cycle battery?
BATTERY TIP 4 – Never fully discharge a deep cycle lead acid battery! The deeper you discharge the battery the more it will reduce the battery’s total cycle life. We recommend discharging a battery to no lower than 50% DOD, with a maximum of 80%.
Is 12.3 volts a good battery?
Check the reading. A fully charged battery will typically display a voltmeter reading of about 12.6 to 12.8 volts. If your voltmeter is showing a voltage anywhere between 12.4 and 12.8, that means your battery is in good shape. Any voltage above 12.9 volts is a good indicator that your battery has excessive voltage.
How do you bring a deep cycle battery back to life?
Fill each of the battery’s cells with distilled water and baking soda solution. Using a funnel, go gently with this approach. Replace the battery caps. For around 30 seconds, shake the battery.
Can you deep cycle AGM batteries?
AGM batteries have an 80% depth of discharge (DoD), which is better than the 50% DoD offered by a flooded cell battery. This makes the AGM battery well-suited to deep cycle applications.
Can you Desulfate an AGM battery?
Keeping your AGM battery charged during and before storage will help to avoid the process of sulfation. In case sulfation occurs on your AGM battery, use a desulfation charge to reverse the sulfation. You can also use the AGM battery recommended charger to lower the impact of sulfation.
How long will a 100Ah battery run an appliance that requires 1000w?
Table: Running times for various AC loads
| 100Ah deep-cycle lead-acid battery with AC loads with inverter – 50% recommended discharge | |
|---|---|
| Load (watts) | Run time (hours) |
| 100 watts | 5.16 hours |
| 200 | 2.58 |
| 300 | 1.72 |
How long will a 100Ah battery run a fridge?
A 100Ah lead-acid deep-cycle battery will run a fridge using 630kWh/year for 13.3 hours. 80% discharge is assumed, but at the recommended DoD of 50% the same 100Ah battery will run the fridge for 8.3 hours. A lithium iron phosphate 100Ah battery will run the fridge for 15.8 hours at 95% discharge.
How long will a 100Ah battery run an appliance that requires 40W?
100Ah Battery Life Calculator
| Appliance Power Draw (Watts): | How Long Will 100Ah Battery Last: |
|---|---|
| 30W | 40 Hours |
| 40W | 30 Hours |
| 50W | 24 Hours |
| 100W | 12 Hours |
Can you overcharge a deep cycle battery?
Can you overcharge a deep cycle battery? Yes, the deep cycle batteries can be overcharged. The amps that are used for charging these batteries decide whether the battery will be overcharged or not.
How long can you float charge a battery?
Float Charger Can be Connected Indefinitely to the Car Battery. While you can only use the trickle charger for a day or two on a monthly basis to charge the car battery, the float charger can be indefinitely connected to the battery and cause no damage to it.
When should you recharge a deep cycle battery?
They should be recharged when they indicate a 50% charge, but never let them get lower than 20% to ensure a long life. Lead-acid batteries, such as deep cycle batteries, run the risk of sulfation if left uncharged for too long.
How long does it take to Desulfate a battery?
Depending on the size of the battery, the desulfation process can take from 48 hours to weeks to complete. During this period the battery is also trickle charged to continue reducing the amount of lead sulfur in solution.
Can AGM battery be fully discharged?
AGM’s have a very low self-discharge – from 1% to 3% per month is usual. This means that they can sit in storage for much longer periods without charging than standard batteries. The Concorde batteries can be almost fully recharged (95% or better) even after 30 days of being totally discharged.
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