Rapid Charger VS Slow Charger

Both rapid charger and slow charger have their own merits, depending on your purpose and budget concern. Rapid chargers take a shorter time to reach a full charge and are more sophisticated in design, thus are more expensive than slow chargers. As overcharging can damage NiMH batteries, rapid chargers are usually equipped with multiple safety systems to avoid overcharging, such as voltage and temperature status monitors, which also lead to higher prices. Therefore, if charge time is not a primary concern, slow chargers are a more economical choice both in terms of budget and cycle life. However, if speed in recharging batteries is called for such as radio controlled cars or digital cameras, rapid chargers are worth investing in to ensure stable energy supply.

Tips #11

Proper Battery Charging

Want to know more about proper battery charging? Here are some tips:-

Do not charge other types of batteries such as alkaline, carbon zinc, lithium etc. that are not specified in the user manual as they may leak or burst, causing personal injury and damage.
Do not charge batteries of different residual capacities at the same time (e.g. fully discharged batteries and partially discharged batteries) unless if the charger is equipped with individual charging channels.
Do not mix batteries of different types (e.g. NiMH, NiCd, alkaline, etc.) and capacities (e.g. 1300mAh and 1800mAh) while using them in the electronic devices.

Tips #12


Charging & Discharging Rechargeable Batteries

Rechargeable batteries are affected by:
1) Charging:

Choose a smart charger that can automatically shut off under different conditions (e.g. when batteries are fully charged or overheated). In general, low rate chargers extend a battery’s service life as compared to rapid chargers.

2) Discharging:

Depth of discharge (DOD) affects the service life of batteries significantly: a higher DOD corresponds to a shorter battery service life. Avoid over-discharging batteries to extremely low voltage. Depending on the discharge voltage, the acceptable terminal voltage ranges from 0.8V to 1.0V.
Leaving batteries inside a device for a long time can result in over-discharging if all discharge currents are not stopped (e.g. standby current).
Mixing old and new batteries of different capacities, chemical structures and charge statuses may cause over-discharging or even reverse charging.Tips #10

GP ReCkyo+ – Stay Green

GP ReCyko+ is the most ideal battery for staying green. Pre-charged before use and staying charged for over one year while not in use, GP ReCyko+ can be used in many devices, including toys, flashlights, microphones, radios and game controllers etc. They are more powerful than regular alkaline batteries and can be recharged over 1,000 times. By using GP ReCyko+, we can save money and be environmentally friendly!Tips #6

What is a Low Self-discharge battery

In the past, the ability of NiMH rechargeable batteries to hold their charge after been removed from their charger was quite low. On average, 15% to 20% of their charge is lost in each consecutive month while being stored in room temperature. With improved storage technology, GP rechargeable NiMH batteries can retain up to 85% of their capacity after a year of storage and are ready for use even over an extended period of time.Tips #4

What does Battery Cycle Life mean

A battery cycle life is defined as the number of complete charge/discharge cycles a battery can perform before its nominal capacity falls below a certain level of its initial rated capacity. In general, if its capacity level decreases to 60% – 80% of its nominal capacity, the battery’s cycle life has ended. This level varies under different charge/discharge situations. GP Rechargeable NiMH Batteries provide electronic devices with the longest service time and can be recharged up to 1,000 cycles, offering the lowest average energy cost as compared with alkaline and zinc carbon batteries.Tips #3

Energy Demand VS Batteries

Choosing the appropriate type of batteries requires knowledge of the device’s energy demand. In general, higher drain devices have to operate with higher voltage batteries.
NiMH Batteries
Provides electronic devices with longest service time and can be recharged up to 1,000 cycles, making it more cost effective than alkaline and zinc carbon batteries.
Alkaline Batteries
Best suited for electronic devices of medium energy demand.
Carbon Zinc Batteries
Suited for devices of a very low energy demand.

Energy Demand Electronic Devices Suitable batteries
High Digital Cameras NiMH batteries
High Portable televisions, MP3 players, PDAs, Handheld game consoles NiMH batteries
Medium to High Portable recorders, MP3 players, Torches Alkaline batteries
Low Clock radios, Remote controls, Smoke alarms Carbon Zinc batteries

Tips #1



How does Temperature effect Batteries performance.

Do not use or charge batteries under extreme temperatures since the extreme heat or cold will reduce battery performance. In addition, battery-powered devices should be stored in dry and ventilated places at room temperature staying away from direct sunlight. For long-term storage, room temperature should be below 30 degrees Celsius. Refrigeration is not necessary and recommended.Tips #4


Ready To Use Rechargeable Batteries.
Traditional rechargeable batteries start losing their charge after one week of storage, and require to be recharged before use. The new generation of GP Rechargeable batteries has a well-improved storage performance and lower self-discharge rate. When delivered out of the factory, the batteries are pre-charged and ready for use upon purchase

Tips #2

What’s the best battery to use Alkaline or Carbon Zinc 

Alkaline batteries are suitable for electronic devices with a medium energy demand, whereas carbon zinc batteries are best for low-drain devices. Though alkaline batteries are more expensive than their carbon zinc counterparts, they can last 5 – 10 times longer for high drain applications, thus making them a more cost-effective choice.

Tips #2

Do I have to replace all the batteries at the same time

It is not recommended to mix old and new batteries or different types of batteries into the same device. As different types of batteries are made with different chemicals, they can cause ruptures or leakages that may result in personal injury or property damage. Make sure to remove all used batteries from a device at the same time, and replace them with new batteries of the same size and type

Tips #5

What’s the difference between Primary and Rechargeable Batteries 

Batteries available for public sale usually fall into two categories, primary and rechargeable. Primary Batteries are disposable batteries, which are not to be recharged and have to be discarded after being fully discharged. Rechargeable batteries can be reused from 500 to 1000 times depending on usage. The application icons shown on packaging easily informs you of what kind of electrical devices Batteries can be used for.

Tips #1


Substitute of Primary Batteries

Under most circumstances, NiMH batteries can fully replace primary batteries, especially for high drain electronic devices. An alkaline battery’s nominal voltage is 1.5V; however once it starts to discharge, its voltage will decline. Throughout the entire discharging process, an alkaline battery’s average output is 1.2V, similar to the output of a NiMH battery. The major difference is that an alkaline battery’s output begins at 1.5V and ends below 1.0V, while NiMH batteries generally maintain an average output of 1.2V.

Tips #16

Short Circuiting

Short circuiting occurs when the polarities of a battery are in contact with electrically-conductive materials, such as keys and clips. It can cause a battery’s temperature and internal pressure to rise, resulting leakage. To avoid short circuiting, do not place charged and non-packaged batteries together with conductive materials.

Tips #13

Do all rechargeable NiCad batteries have ‘memory effect’?

No not all rechargeable batteries have the memory effect. GP batteries use a new technology, unlike sintered plate type rechargeable cells GP rechargeable NiCad cylindrical cells with modern foam electrode technology do not exhibit memory effect.

Why don’t NiMH cells have the memory effect?

The reason that there is no memory effect in the NiMH cells is because of the non cadmium based nature of the cell, teamed with the modern foam electrode technology, ensuring that no undesirable memory effect is present.

What is the best type of battery to use for a high drain application like a discman, personal stereo, or camera equipment?

The best type of battery to use in a high drain application is an alkaline cell. These will perform head and shoulders above a zinc carbon cell in this type of application. The Alkaline cells are designed to be used for high drain applications.

What is the best type of battery to use for a low drain application like a wall clock, or a remote control?

You have two options: Using the Alkaline cells which will perform very well, or saving some money and using the Zinc Chloride type cell, which will perform almost as well as the Alkaline in this type of application.

What is the best way to store my rechargeable batteries?

We recommend that you try not to store your batteries for extended periods of time. If you need to do this however, try to store the battery in an uncharged state. When you know you need to use the battery again take it out of storage a few days before it’s needed and charge and discharge it three times. This should rejuvenate the battery to get the highest capacity available from the cells.

Why don’t my rechargeable batteries last as long as the old one’s use to?

This has to do with the charging specifications on the batteries. All consumer type rechargeable GP batteries charging specifications are to charge at 10% of the batteries capacity for 12 to 16 hours .In this day and age however most charge well above this rate as people want their batteries charged faster. Unfortunately there is a trade off, your battery gets charged a lot quicker but doesn’t last as long.

Can I replace a NiCad battery with a NiMH battery?

Yes, in many cases it is not possible to get NiCad batteries for appliances, therefore there is no choice. The only problem that may arise is the charger may not cope with the higher capacity battery. It will either take a longer time to charge or not charge at all.

What does ‘mAh’ mean?

mAh stands for Milli-Amp per hour. This is the ‘petrol tank’ of battery, it refers to how long the battery will last after each charge. The higher than the mAh the longer the battery will last after each charge.

How long will a new battery last in my appliance?

Every appliances uses a battery differently, therefore it is not possible to know how long a battery will last in a particular appliance. However if you have an old battery you can compare the two mAh ratings and work it out that way.