Half the dead batteries we examine were killed by a machine that outlived them. The charger is the single most influential device in a battery’s life — more than the load, more than the weather — and yet it is bought last, cheapest, and blindest. Our charging guide covers the PRACTICE of charging and why … Read more
Every battery dispute in history begins the same way: somebody measured the wrong thing and believed it. A warehouse swears a bank is dead; a voltmeter swears it is fine; both are quoting evidence. The way out is to know that battery tests form a hierarchy — from readings that merely HINT to the one … Read more
Between a battery’s two terminals lives a number nobody prints in large type: its internal resistance. Every element of the current’s path fights it a little — grids, welded joints, active material, electrolyte, separators, terminal posts — and the total, for a healthy industrial cell, amounts to mere thousandths of an ohm. Milliohms sound like … Read more
No battery lives forever, but almost none die of old age alone. Ask what “battery life” means and you get two different clocks. The CYCLE clock counts work: every discharge-recharge round wears the plates a little, and the datasheet promises so many rounds at a stated depth. The CALENDAR clock counts time itself: some chemistry … Read more
Walk any battery exhibition and you will hear the same argument by the second coffee. How long does lead-acid have? Ten years? Twenty? Is lithium finishing the job, and is sodium-ion coming for whatever is left? The debate is loud because both sides can point at true things. As a company that has made lead-acid … Read more
Every battery lives and dies by a rule written in 1889 by a Swedish scientist who never saw a battery room. Svante Arrhenius wanted to know something deceptively simple: why does heat make chemistry go FASTER? His answer — one compact equation — now explains why your battery feels weak on a cold morning, why … Read more
Here is a strange fact: a battery does not contain a fixed amount of electricity. The same battery gives you MORE if you take it out slowly and LESS if you grab it fast. That sounds like cheating, but it is honest physics, and it was measured carefully back in 1897 by a German engineer … Read more
No working environment on earth is harder on a battery than an underground mine. Heat, dust that conducts electricity, corrosive damp, constant vibration, gases that must never meet a spark — and consequences, when equipment fails, measured in more than money. Because live rails and trailing cables are non-starters in most galleries, underground transport runs … Read more
Nobody chose 2 volts. No committee sat down and decided a lead-acid cell should read 2.04 volts at equilibrium, or a lithium iron phosphate cell about 3.2. Those numbers were fixed when the universe set the energies of chemical bonds; battery engineers merely discovered them. This article is the short version of that discovery — … Read more
A golf cart battery has the hardest job nobody takes seriously. It is discharged deeply, often daily; recharged whenever someone remembers; parked for months at a stretch; and owned, mostly, by people who never open the battery compartment. Car batteries live pampered lives next to this. Technically, a cart battery is a semi-traction battery — … Read more