Panasonic Eneloop Rechargeable AA 1900mAh and AAA 750mAh Batteries 4+4 pack

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About this product

Overview

Product overview

• Eneloop combine the benefits of primary alkaline and rechargeable batteries
• Pre-charged with solar energy and ready to use immediately
• Reusable, recyclable, economical, and ECO friendly
• High performance and low self discharge in temperatures as low as –20ºC
• Eneloop batteries retain 70% of their charge after 5 years
• Lifecycle of 2100 times

eneloop combines the advantages of a rechargeable battery and a dry-cell battery
eneloop is a rechargeable battery that can be used as easily as a dry-cell battery, and reused simply by recharging it. It combines all advantages of a dry-cell battery and a rechargeable battery while also protecting the environment.

The new eneloop is rechargeable up to 2100 times
One of the most important specifications of a rechargeable battery is the cycle life, i.e. the number of charge / discharge cycles a battery can withstand without losing its capacity.

Clearly the greatest advantage of eneloop is that is can be recharged up to 2100 times and recycled afterwards. In the long run this is not only more economical it also avoids the waste of 2100 batteries*1.

The new eneloop has an even lower self-discharge
eneloop batteries have a low self-discharge rate and are therefore just like dry cell batteries immediately usable after purchase. Not only are they ready to use after purchase – they also keep their charge. The graph clearly shows that in comparison with other high quality rechargeable batteries, eneloop retains 70%*1 of its charge after 5 years of storage and does not require periodic recharging. This means that you can be sure your device is always ready for use. No matter when you charge eneloop, you can count on eneloop supplying the power that you need, even five years later.

eneloop – Clean Energy Loop
eneloop creates a clean „Energy Loop" by being pre-charged at the Japanese factory with clean, renewable solar energy, which makes eneloop even more environmentally friendly.

eneloop is universally usable
From digital cameras to MP3 players on to remote controls: eneloop is the ideal universal power supply for almost all of your household devices, even for applications that until now have run on alkaline batteries such as game consoles.

You no longer need "special batteries". eneloop is powerful enough to run all these applications without any problems.

High performance even at low temperatures down to –20°C
Another great advantage of eneloop is its good performance at low temperatures.

eneloop has higher usable capacity than standard batteries
One of the main features of eneloop is the higher voltage level. Many applications switch off or show the low battery signal if the voltage is lower than 1,1 Volt. A traditional Ni-MH battery will lose its voltage constantly and runs under this critical level very soon. eneloop however will keep the voltage level over 1,1 Volt for a long time, and only just before becoming empty will fall under that limit. That's one of the reasons why you can take more photos with eneloop.

*1: A guide-line for battery life based on IEC61951-2 : 2003 (7.4.1.1)

Do the batteries have to be fully discharged before charging. ie no memory effect – batteries can be recharged when fully, or partially drained.

Asked by: Denis
No, it will not damage the cells if they are recharged after only partial usage. What matters is that the cells are not overcharged (or repeatedly charged without useage), preventing overcharge can only be done by using a smart/intelligent charger that detects when the cell is full and cuts off the charging current. These cells cannot be left on a trickle charge (slow permanent charge) for more than a day (some chargers enter a reduced current mode after the battery is full to ensure it is fully charged when it is eventually taken off the charger) due to their low-self-discharge properties. Also, the memory effect only happens in very rare circumstances and has only ever been observed a few times in the NiCd chemistry. The lack of a "memory effect" is mostly used as a selling point by companies that means as much as "batteries may contain nuts"; it's totally needless to say it. Russell is partly correct in the sense that you should not charge a cell and then immediately try to charge it again, but recharging a cell after using it for a while in a medium/high drain device is fine, there is no need to completely discharge it to 0.9v/cell. (THIS IS ONLY WHEN USING A SMART/INTELLIGENT CHARGER)
Answered by: battman
Date published: 2017-06-10
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