Recently, we have received alarming information from our customers and readers that questionable quality Panasonic Eneloop batteries have appeared on the market. After analyzing the information received, we made a controlled purchase of batteries on one of the auctions on the most popular site in Po ...

The world is increasingly aware of the negative impact of waste on our environment. You may have heard about the announcements of one of the larger retail chains withdrawing traditional batteries from sale. As an alternative, we are increasingly using rechargeable batteries that allow for multiple r ...

This time in our lab, we decided to thoroughly test the capabilities of block alkaline batteries, Ni-MH rechargeable batteries, and Li-ion in the 9V size (the designation for the alkaline battery is 6LR61). The test involved measuring capacity, energy, and recording discharge curves at currents of 5 ...

Eneloop is a popular and respected brand of Ni-MH batteries. It currently belongs to the Panasonic group, although many remember that they were once branded as Sanyo. We would like to reassure those last ones - the batteries have not lost quality and are still produced in the same factory in Japan. ...

Do you know how your toys, meters, cameras, chargers, flashlights, etc. actually work - what they do with batteries, rechargeable batteries, whether they operate safely and according to accepted standards? Are your rechargeable batteries completely safe when left in your favorite toy or other devic ...

Among many of our customers, there is still a belief that the slower we charge a given battery, the better it is for its condition and lifespan. Unfortunately, it is very easy to unknowingly damage your batteries. If we charge new AA batteries with a current of around 200-300 mA, we can be quite sur ...

Memory effect is characteristic of older Ni-Cd batteries.  The result of this unwanted phenomenon was a reduction in the usable capacity of the battery.When the battery was only partially discharged, it "remembered" the moment of recharging. During later use, it became increasingly difficult to ...

Definitely no. Completely discharging a Ni-MH battery before each charge effectively reduces its lifespan. Regularly discharging batteries was recommended for old, practically unavailable nickel-cadmium (Ni-Cd) batteries. Performing a forced deep discharge cycle eliminated and minimized the ris ...

Alkaline batteries, due to their readiness for immediate use after purchase and their ability to retain energy for a relatively long period, were previously a better alternative than traditional rechargeable batteries. What has changed with the introduction of new generation rechargeable batteries? ...

Ni-MH batteries were relatively slow to enter mass production - although hydrogen is very well suited for the anode, the design of cells using hydrogen requires absolute tightness and high pressure inside the cell. It was only in the late 1960s that it was discovered that alloys of certain metals co ...

Here you will find explanations of the terms most commonly used in connection with batteries and accumulators as well as chargers; do you not know what a term means or how to measure the capacity of cells? Do you not know what internal resistance is, termination current, and does the term CC/CV soun ...

What to consider when choosing power for your devices? In our opinion, the primary determinant of when to use disposable batteries and when to use rechargeable batteries should be the operating time of the device on batteries. If the battery replacement occurs every few months or over longer periods ...

If we want to replace disposable batteries with Ni-MH rechargeable batteries, it is worth following a few rules that will allow for the full utilization of the capabilities of the new cells. Adhering to a few simple principles will enable you to optimally, economically, and ecologically use your re ...

Charging Ni-MH batteries at the lowest possible current is not always the most beneficial for their lifespan. In the case of modern automatic chargers, the assessment of the moment of full battery charge largely depends on the charging current value. The best charging result is obtained with a cu ...

This is a question that arises very often in our daily work. It is generally believed that Ni-MH batteries cannot replace disposable batteries due to their lower voltage. However, this applies only to certain devices - usually those with low power consumption and typically in configurations where ba ...

Every European manufacturer is obliged to provide reliable information regarding the capacity of batteries.The technological maximum limit of currently achievable capacities for Ni-MH batteries is about 1100 mAh for R03/AAA ('small batteries') and about 2700 mAh for R6/AA ('regular batteries') - alt ...