So, based on that information we mostly find lack of maintenance charging is the leading cause of premature failure. Second in line would be excessively discharging the battery, which greatly reduces the battery's cycle life. Knowledge Base Home. Well, Let Me Tell You Copy Link. You can easily spend the cost of a new battery or more for an emergency jump start, tow or taxi ride Most of the "defective" batteries returned to manufacturers during free replacement warranty periods are good.
Was this information helpful? Sign up to Get Updates and Offers. Email address should be formatted user domain. Written on January 16, a am. Tagged with sulfation , maintainence , heat , hot , cold , failure. Bob Awesome! Exactly the info I was looking for.
Read Knowledge Base using Feedly. Shop For The voltage at which a battery is supposed to have discharged is its cut-off voltage. Actually, there is still some power left in it, but this threshold for recharging ensures longer battery life. Many portable device manufacturers set high cut-off limit for their devices. So, the devices shut down due to lack of power much before they actually could. Your battery needs proper maintenance and care.
Improper storage of the battery when not in use is a very important reason for premature battery failure. I have listed 5 reasons here and you might have felt that only the last one, i. Other factors seem to be there by default. Well, actually there are some common factors that affect all of these. If you choose a good quality battery and gadget using it, keep it away from high or low temperatures, and care for it well, you can prevent it from failing when you are least expecting it to.
VRLA Batteries. Rechargeable vs. Single-use Batteries. Once released the gasses are lost forever and the battery will dry out. Dehydration is the natural consequence of old age. Premature dehydration is a failure condition which can lead to other failure modes.
Thermal runaway is a catastrophic failure. Heat creates resistance. Resistance creates more heat. This cycle can continue until heat is so high that the cell dries out and catches fire or melts. Several means are available to detect and preclude thermal runaway early in the cycle. Temperature-compensated charging is the most common.
It requires temperature sensors to be strategically placed on cells throughout the battery. As temperature increases, charging voltage decreases proportionately, until charging ceases altogether.
Some UPS and external battery chargers are capable of temperature-compensated charging, but battery temperature sensors are frequently provided only as an option. Thermal runaway will be discussed in greater depth in a future unit. Cycling service refers to operation in which it is anticipated that the battery cycles frequently with minimum time on float charge, which is common in stored energy systems such as wind, solar, or installations supplied by an unreliable grid.
UPS operation, by contrast, assumes that the battery will be on float charge for almost all of its life. Every discharge takes life out of the battery. Some battery types can only tolerate a few cycles in the life of the battery. Others can tolerate thousands of short discharges, but fewer deep discharges. The battery selection process prior to purchase should consider the reliability of utility power and therefore the probability of frequent cycling.
Overcharging is any excessive charge that results in damage to a cell or battery. It can be the result of human error i. In UPS applications, charging voltage varies depending upon the stage of charging. Overcharging can dramatically shorten the life of a battery and, in worst case, can lead to thermal runaway.
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