Energizer Holdings (formerly Eveready Battery), headquartered in St. Louis, Missouri, best known for its pink Energizer Bunny, is an American manufacturer of batteries with a market share of approximately 30%, with markets in over 150 countries. Formerly a division of Ralston Purina (which purchased them from Union Carbide in 1986), the company owns the Energizer and Eveready brands, producing alkaline, carbon zinc, and lithium batteries, as well as button cell batteries for medical equipment, as well as other specialty batteries. The company also manufactures flashlights. In 1999, Energizer sold its rechargeable battery division, although it still markets them for retail sale.
In 2003, Energizer bought razor manufacturer Schick (including the Wilkinson Sword brand) from Pfizer, as part of Pfizer's absorption of Warner-Lambert. This was done in order to even competition with leading razor maker Gillette, which owns Energizer's historic arch-rival Duracell.
A battery explosion is caused by the misuse or malfunction of a battery, such as attempting to recharge a primary battery, or short circuiting a battery.
This battery is notable in that it contains a liquid in an unsealed container, requiring that the battery be kept upright and the area be well-ventilated to deal with the hydrogen gas which is vented by these batteries during overcharging.
Flow batteries are a special class of battery where additional quantities of electrolyte are stored outside the main power cell of the battery, and circulated through it by pumps or by movement.
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