What You Need to Know About Deep Cycle Batteries

First and foremost, there are many people who have strong opinions about batteries, their manufacturing, and their durability.

When I talk about batteries, I am not referring to the kind you use in a flashlight. I am referring to wet cell acid deep cycle batteries used in floor scrubbers, golf carts, and similar equipment. Solar storage systems are not part of this discussion.

We sell only one manufacturer’s battery. Why? Because we know that if there is ever an issue related to manufacturing, it will be addressed quickly and properly. Most manufacturers today have done a good job when it comes to quality and durability. The difference in lifespan between the best and worst in North American manufacturers is often around 15 percent. Not bad, but not perfect either.

So what is the real issue? Why do batteries seem so stressful?

Like most equipment failures, batteries are often affected by user error. The number one issue is short charging. Operators use machines as they should, running them until the battery is properly drained. That part is fine. The problem happens at the end of the job. When there is just a small task left, batteries are often charged for 15 or 20 minutes just to finish the work. This is a mistake.

Simple rules for batteries:

• Always charge them to 100 percent before using the machine again.
• Always store batteries fully charged.

Follow these two rules and you can eliminate a large portion of battery failures and save significant costs. Battery sales teams everywhere might not love that advice.

What are some other ways batteries get damaged?

• Battery powered machines are sometimes used for a short period and then put away connected to the charger. This is not necessary, as batteries will stabilize after light use.
• Machines are stored with the power still on. A fully drained battery can sometimes become unrecoverable.
• Operators refill batteries with tap water. The rule is simple. Always use distilled water.

There are certainly other reasons for battery failure, but these are some of the most common. I could easily turn this into a top ten list. Maybe next time.