The NiMH (nickel-metal hydride) batteries are designed to operate from fully charged to fully discharged. These batteries last at least 1000 nights and are easy to replace after that time.

On the Ambassador, a fully charged set of batteries will play continuously for around 10 hours. The batteries do not need to be fully charged for the player to operate. The button cell batteries on the Messenger will play from 4 to 10 hours, depending on the type of Messenger chosen at time of order.

NiMH batteries will self-discharging even left unused. They will lose 1-2 % capacity per day. The self-discharging rate is depending on the storage temperature. Store your batteries in a cool dry place to minimize the self-discharging effect. You need to recondition and charge the batteries several times to restore their peak performance. NEXcell NiMH batteries do provide a much longer shelf life compare to almost all other NiMH batteries.

No, they are not. Many cell phone and camcorder batteries, for instance, are small lead-acid batteries (the same materials used in a car's rechargeable battery). If you follow proper maintenance, such as recharging batteries only after their charge has been exhausted, they will last longer. For a wealth of information on rechargeable household batteries, visit the Rechargeable Battery Recycling Corporation Web site.

They are not. Rechargeable batteries, while a good idea, do not suit the purpose of a good pet containment system. To be most effective, rechargeable batteries need to be totally drained before recharging. What do you do while the battery is recharging? How do you know when the battery is sufficiently drained? To save our customers from worrying about these questions, we offer a battery plan.

The internal batteries of the AbioCor are sized for a one-half hour operation at implant, allowing patients to conduct activities, such as taking a shower, without an external power source or battery pack. External battery packs can be used for many hours depending on the number of battery packs carried.

Rechargeable batteries have the greenest environmental credentials. Using rechargeable batteries reduces household waste massively. Globally, 15 billion ordinary batteries are thrown away every year, all of which end up in landfill sites. Rechargeable batteries can be reused again and again which massively reduces the impact disposable batteries have on the environment. The most ecological rechargeable batteries available are NiMH rechargeable batteries (Nickel Metal Hydride).

We do not recommend rechargeable batteries with this tool because of the difference in voltage between alkalines and rechargeables. The circuitry in the tool is specific to 6.0V and you are likely to see aberrant behavior from the tool when your rechargeable batteries are low. However, we have found that alkalines provide plenty of life for most users.

New solar panels have a manufacturer's warranty of 20 years. With proper care, however, the panels should last many years beyond the warranty. In the case of batteries, basic routine maintenance and discharge rates of no more than 10 -20% means your batteries should function effectively for 10 years or more.

Rechargeable batteries should perform for approximately 15 hours if the radio use is 5% of the time transmitting, 5% receiving and 90% in standby.

The batteries should be charged for at least 24 hours for the first charge cycle and after the batteries have been completely discharged. Each cycle thereafter should be 8 ? 10 hours to fully recharge.

Generally around 1 to 2 hours when using the higher charge rates. 3 or more when charging at the slower rates.

Rechargeable batteries perform a little differently than non-rechargeable batteries. The voltage coming from an Alkaline (non-rechargeable) battery decreases steadily as the battery is discharged. Ni-MH and Li-Ion batteries have a lower starting voltage than Alkaline (typically 1.2-1.3V vs. 1.5V for Alkaline), but rechargeables maintain this level until they are almost discharged.

Rechargeable batteries lose their charge sitting in the camera. Ni-MH batteries lose between 1% - 4% of their charge a day. Since many cameras start reporting a low battery at 80% of full charge, the batteries could be reported low in as little as ten days. This number will vary greatly depending upon the age of the battery, temperature, and camera. Memory effect was a problem with older Ni-Cd batteries.

a rule, rechargeable batteries lose around 80% of their charge within three months. The speed of self-discharge depends on the temperature. The higher the temperature, the greater the amount of self-discharge over time.

It is possible to use rechargeable Nickel Metal Hydride (Ni-MH) Batteries with SD9 and SD10 cameras. When using these cameras with Ni-MH batteries, please take following points into consideration.

I've had my radios in the charger for three days but the battery icon only shows one bar when I turn it on.

Nimh (Nickel metal Hydride) rechargeable batteries will save you money. They can be charged up to 500-1000 times and last longer than alkaline or NiCd batteries. Our Nimh batteries are compatible with most consumer devices and are ideal for digital cameras and flash units, CD players, RC vehicles, PDA's, portable two-way radios, gameboys, toys, GPS receivers, flashlights, and many more high drain devices.

If it's a digital, yes. traditionally, rechargeable batteries haven't been recommended for use in cameras - but today's digital is a different breed. Digital cameras drain batteries quickly due to their screens and processors, so rechargeables will pay for themselves in short order. Just be sure to buy Ni-Mh (Nickel Metal Hydride) rather than Ni-Cad (Nickel Cadmium) for longer running times and no "memory" effect from recharging before discharging them.

I normally answer that question by simply saying "hundreds". The reason I can't be more precise is because this is a more complex question to answer than it might seem. The number of times a battery can be recharged depends on how the battery is used. An analogy that is sometimes used is to compare a rechargeable battery to a loaf of bread. Suppose someone asked, how many slices can be cut from a loaf of unsliced bread? The answer, of course, depends on how thick or thin the bread is sliced.

There are many different battery testing criteria and standards such as battery's internal resistance, testing the capacity and life cycle with different C-rate and environment temperature, etc. Most of them require specialized equipment and controlled enviroment to conduct the tests. Therefore, regular consumers really cannot just the quality of rechargeable battery from their outside appearance.

Rechargeable batteries should be stored in a cool and dry place. We recommend storing them in a battery case over long periods. Batteries that are not stored in adequate conditions can lose their charge rapidly.

Yes they are, like primary batteries. It is important to dispose of them in specially provided recycling containers. Batteries contain a number of heavy metals that will be recycled. In that way, these metals will not end up in the soil and the air. Rechargeable batteries can be recharged up to 1000 times and could reduce the volume of waste batteries by 1000 times.

Check your User's Manual or the label on the back of the alarm. Never use rechargeable batteries because they do not always provide a consistent charge.