How To Charge A Deep Cycle Battery Properly?

Last updated on March 9th, 2021 at 05:50 am

Deep cycle batteries are popular as an effective source of energy to marine applications. These batteries are structured to get discharged having no energy at all and always ready to get boosted up whenever you recharge it. There are a lot of ways to recharge a deep cycle battery, but you must choose those techniques that are safe and productive. So, for your easiness, we have assembled the best and safer techniques to charge a deep cycle battery properly.

Ways To Charge A Deep Cycle Battery

If you do not want to risk your battery to get into any sort of damage, you must know the right way to it. The charger comes with an instructions’ readout, so attach the given clamps. The best way to follow with deep cycle battery charger is as follows:

Methodology to Charge the Marine Battery Properly

  • Search the charger’s manual and if you do not have one, download it. Check the correct instructions given into it as they can differ from one charger to other.
  • Check the type of battery and see if the charger is suitable for it or not. You need to check it first before starting the whole process.
  • To reduce the risk of an electrical damage, you need to disconnect the battery for the system of the boat.
  • You need to be careful if you are charging the battery in a place where gas can dissipate easily. Also, you need to be very attentive of gas release from the marine battery.
  • Check the terminals of the battery ad clean them properly if needed.
  • Be more protective and wear glasses and rubber gloves because battery emits sulfides while it is getting charged.
  • Now clasp the red clamp to the positive terminal (has a plus symbol). Some advanced models come with a feature to warn you if you attach the clamp to the terminal. Still, you need to be careful.
  • The other clamp will be of black color, it has to be attached to a negative terminal having a sign of minus.
  • Now plug in the charger to a power source (alternative current) of approximately 110—120 volts.
  •  Turn on the switch to start your battery getting charged. Advanced chargers come with the feature of auto-stop to save your battery from getting overcharged.
  • When the battery gets charged, remove it from the plug and reinstall it in the boat’s system.


Ensure you detach the battery from the boat before plugging it to a charger. Connect the correct charger according to your battery’s type that you have. Read the manual for the charger before you do anything. Utilize defensive eyewear and rubber gloves to shield from release from the battery which can get in the eyes and cause injury. Additionally, while accelerating charging is dependent upon the charger that you own, just charging 90% saves time.





We don’t spam! Only Important Stuff.

This is William Parker, an RV lover, and an adventurer - in short, Beaver Instincts. I am also a professional content creator who knows fairly well how to compare different products, services, and sites. Announcement: Invest in Our Blog to get up to $20K per month in passive income. Email

Comments are closed.