NIMH VS ALKALINE BATTERIES

Feb 02
2010
Duracell NIMH Batteries

Duracell NIMH Batteries

Duracell Alkaline Battery

Duracell Alkaline Battery

Alkaline are the most common used batteries in households. The number one reason for this is because of the cheaper price that alkaline batteries have over their competition. Consumers seem to buy the alkaline batteries thinking they are saving money at time of purchase, when they are really spending more money over time. Alkaline batteries are not designed to be recharged, and are generally discarded once the the battery is exhausted of its stored power. The only advantage that alkaline batteries have over NIMH batteries is cost and discharge rate. The NIMH batteries cost 2 1/2 times more than alkaline batteries, and have a high discharge rate as compared to the alkaline battery. People who keep equipment stored for emergency purposes, such as flashlights when the power goes out. NIMH batteries do not store well over long periods because of their high discharge rate. When the flashlight would need to be used, you could possibly only have 65 to 70% of stored power depending of course on length of time stored. Alkaline batteries have a very slow discharge rate, and are a excellent choice for these applications. Now with that being said its time to take a look at what NIMH batteries have to offer over alkaline batteries. NIMH batteries have a much higher capacity than alkaline. Bottom line, NIMH batteries have a lot more power to offer for high drain devices such has digital cameras. NIMH batteries are rechargeable batteries, and consumers can expect to get 750 to 1000  or more charge discharge cycles out of them. That’s a huge advantage over alkaline batteries for applications such as remote controls, wireless controllers, and kids toys. NIMH batteries can also be recharged to full capacity in less than a hour. As we mentioned above, the NIMH batteries have a higher initial cost than alkaline batteries. Consumers can expect to pay around 29 dollars for a 15 minute quick charger and 4 AA NIMH batteries included. Keep in mind you get 750 to 1000 recharge cycles with that purchase. A pack of alkaline batteries will cost you almost 5 dollars a pack. So you can recharge your NIMH batteries 5 times and you get your money back on the alkaline batteries, and still have 750 to 1000 recharge cycles left! The NIMH batteries are also good for the environment because they have no cadmium in them as opposed to NICAD.

EDIT: Customer Service at Sentry Safe recommends Duracell or Energizer; see comment section

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NIMH VS NICAD (Nickel Metal Hydride VS NICKEL CADMIUM)

Jan 23
2010
NICAD AA Rechargeable

NICAD AA Rechargeable

NICAD(Nickel Cadmium) batteries were very popular in their day, but now are obsolete because of NIMH(Nickel Metal Hydride) batteries. NICAD batteries suffered in available capacity,they were susceptible to memory effect, and not to mention they are not environmentally friendly. Nicad batteries contain toxic cadmium.  Nicad batteries needed to be fully discharged before charging again to 100%. On a cordless drill for example, if you used half the battery working on a project and then charged it back up again for the next day the NICAD batteries would start using only 50% of their capacity thinking it was 100% charged. NICAD batteries however were hard workers if you drained them all the way down and took them back up again to 100%. They would take a lot of abuse of heavy cycles, time after time but lacked high capacity. Nicad batteries had around 750 charge cycles in them.

NIMH AA Rechargeable

NIMH AA Rechargeable

Nickel Metal Hydride is an excellent replacement to Nicad. Nickel Metal Hydride has no memory effect, so they came be charged back up at any time with no worries. NIMH also contains no toxic cadmium, and are environmentally friendly. NIMH offers 2 to 3 times the available capacity over Nicad batteries. NIMH are a excellent choice for high drain electronic devices like digital cameras. NIMH batteries have 1000 plus recharge cycles in them, making them a power house in the rechargeable sector. One of the draw backs to NIMH batteries however is their discharge rate when not in use. NIMH have a high discharge rate, and for that reason are a bad choice for emergency applications like backup flashlight batteries in cellars. NIMH batteries are a great improvement over Nicad batteries, and are a excellent choice for your next battery purchase.

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