Battery Blogs, Articles & How-Tos

A fishing boat with an electric trolling motor

A trolling motor is only as reliable as the battery powering it. Pick the wrong size, and you risk damaging your motor, cutting your day short, or getting stranded miles from the dock.

Testing a car battery with a multimeter

Nothing ruins your morning faster than a dead car battery — especially if it’s brand new. If your vehicle keeps losing power overnight, you’re likely dealing with a parasitic draw.

A family enjoys a day of golfing

Nobody thinks about a battery until it dies — usually at the worst possible moment. But mixing up a starting battery and a deep-cycle battery is a sure way to waste money and end up stranded.

A battery monitor

Your battery powers your freedom on the road and water. Don’t let a dead one strand you.

The right gear lets you track usage, charge faster, and avoid costly replacements.

A UPS battery backs up an electronic device

A quick battery test can mean the difference between staying online and losing power, data, or expensive equipment.

In this guide, you’ll learn how to test your UPS battery correctly, spot warning signs before it fails, and make sure it’s ready when you need it most.

A man hooks up a battery maintainer
Unlike a battery charger, which revives a dead battery, a battery maintainer automatically monitors voltage and delivers only the charge needed to keep your battery in peak condition — even during months of storage. In this guide, you’ll learn how battery maintainers work, how to use one, and how to...
A small backup battery system

A DIY battery backup system keeps your essential appliances running quietly, automatically, and without the noise, fuel, or safety concerns of a generator. This guide walks you through everything you need to build one, from choosing the right components to sizing your system and estimating the cost.

A woman charges a battery

A charger is supposed to protect your battery — not damage it. Yet a faulty or incompatible charger can quietly reduce battery life, cause overheating, and create safety risks before you notice a problem.

A mechanic checks a car battery

How long will your battery keep essential systems running if the alternator fails? That’s what reserve capacity measures — and it’s one of the most important battery specs most drivers overlook.

Massive batteries storing green energy

Batteries power everything from smartphones and cars to home energy systems.

Yet most people know little about how they work, where they came from, or how quickly battery technology is evolving.

An RV powered by deep cycle batteries

Installing a deep-cycle RV battery is one of the easiest ways to improve off-grid power and reliability.

A healthy battery keeps your lights, water pump, fans, and appliances running while camping without shore power.

A battery-powered pacemaker

Batteries power much more than just remotes and phones.

They help run medical implants, track wildlife, light emergency roads, and even bring art to life. As battery technology improves, these tiny power sources are showing up in some surprising places.