What happens if a deep cycle battery goes flat?
If your battery shows a good voltage when it’s fully charged, but quickly drops voltage to 11V or less when using power, this usually means the battery has a faulty cell and needs replacement.
When a deep cycle battery is fully discharged (dead flat), it should reveal a reading of approximately 10.5V..
How long should you charge a deep cycle battery?
The time it takes to properly charge a battery depends on its current discharge value and your charger’s amperage specification. A charger with 15 amps, for instance, will take about two hours to fully charge a battery at a 25-percent discharge value.
What amp should I charge my deep cycle battery?
It is better to charge a deep cycle battery at a higher charge rate like 6-amps, 10-amps or higher. However, check you battery specifications for the proper charge rate.
Can a dead deep cycle battery be recharged?
From a pragmatic standpoint, quality deep cycle batteries are engineered to be discharged and then recharged to full capacity. Don’t be conservative with your batteries on the water, and when you’re back on dry land, recharge with a Minn Kota onboard charger to intelligently restore them to full capacity.
How do I know if my deep cycle battery is bad?
How to Know If a Deep Cycle Battery Is BadDo a visual inspection of the battery. … Charge the battery fully before testing. … Have a copy of the manufacturer’s specifications for the battery nearby, as you will need to refer to them as you test the battery.Take a hydrometer reading of all the cells in the battery.More items…
Can AGM batteries be fully discharged?
Discharging batteries is a function of your application. <50% DOD is recommended. 75-80% DOD is the maximum safe discharge for flooded and AGM batteries. Do not discharge flooded batteries >80%. … Lead acid batteries do not develop a memory and need not be fully discharged before recharging.