Gpower battery tested by a New Zealand battery junkies

Here is a screen shot of the results.

gpower test

He said the Panasonic batteries have been through 15-20 charge cycles.   So that might explain the difference.  But what he was really happy with was the temperature.  The Gpower batteries didn’t get very hot.  Panasonic got very warm and the other brand was really hot!.

Hot batteries wear faster and life is cut short.

gpower 40a 2600mah

This Gpower battery is high drain battery, which is mostly used in Electronic Cigarettes, also used in other products, for example, torch. His testing shows a big advantage of Gpower battery. It will keep cooler than others when discharging for the same time.

How to choose 18650 batteries?

How to tell if you are fooled when facing millions fake-branded and poor quality 18650 batteries? Here’s some useful tips to help you differ the good from the bad.

From Capacity

Normally the 18650 lithium ion battery’s capacity won’t exceed 3100 mAh for any reason(based the 0.5 C capacity-testing standard). If you got a 18650 battery, and labeled 5000 mAh or so, please don’t risk your life to use it. It’s always been this case. A grade 18650 cells for e-bikes and power tools. B grade for small assembly company of power bank product. C grade and those below C grade for flashlight uses. While Gpower manufactures their own A grade battery to their customers.

From Price  

Some company will use LOW PRICE WITH HUGE CAPACITY to attract customers or even distributors. The price always be something around a 0.65 USD to 1.3 USD for one single 18650 lithium ion batteries. Now you dare to use it? No company will sell goods with a price which is much more lower than the cost. Besides now the labor cost is increasing in China. If there is, it could be bad ones.

From Size

There’s the risk to be deformed, leakage, explosion. Under the maniac price war, Some companies use low price PCB protection board or EVEN cut this part off. This kind of deeds make the market pay prices for the explosion-able 18650 batteries. It does not come easy to tell whether this a PCB inside. Here’s a easy way but not very reliable way. The 18650 li-ion battery’s dimension is 18mm by 65mm. 65mm is its length. When using in a flashlight, a PCB protected 18650 would be at least 67-68mm. Yet the most reliable way is to buy it from a reliable seller.

From appearance

For the original, it has a clear color and texture. Tidy and clean appearance. No scratch. It should be correctly labeled with Model No, Type, Capacity, Voltage, Negative and positive indications. Metal sheets no scratch, no blackened and greenish. If there’s inconformity then you can tell it’s not the original.


Five Key Tips to ensure 18650 batteries life

The lifespan of 18650 batteries are always a big problem to battery users. No matter Gpower batteries, but also the all the 18650 batteries. And most time it depends on how you use and charge them. To ensure 18650 batteries life,  here are some important tips to show:

  • Never let it discharged below 2.5V or exceed 4.25V. Handled with special care these lithium batteries, as they are very sensitive to loading conditions and could burn or explode if improper handling.
  • Don’t deep discharge before recharging 18650 batteries. The capacity of 18650 battery reduces to less than 50%; you should recharge it.
  • Always charge batteries on the fireproof surface. High temperature will cause short lifespan and reduce capacity rating.
  • Do not modify, manipulate or get wet batteries.
  • Using a better smart battery charger for you are not to worry about over-charge, weak-charge and over-heat.

The Best 18650 Batteries for recommendation

Why are the 18650 batteries so popular? What are the advantages of 18650 batteries? They are 3.7 volt lithium-ion batteries that can be recharged and are compatible with a wide range of electronics, including digital cameras, flashlights, electronic toys, wheelbarrow, power bank and electronic cigarette and so on.

gpower battery 3000mah

As we all known, Panasonic, Sanyo, Sony, Samsung, and LG are the top level 18650 cell manufacturers, making long lasting cells in a standard size (18 mm by 65 mm) that fits all 18650 compatible devices. Some Chinese batteries are cheaper and performance as well as the popular brand batteries. Gpower, which is the main battery brand of Geezle Industrial Co,.Ltd, is a better battery to recommend. In general, When deciding on which battery is best for you, balance out the capacity, current rating, and voltage. Considering those qualifications, the Gpower is the best 18650 battery. There are many models of Gpower battery.  The Gpower 3000mAh 40A with the capacity 3000mAh and CDR 20A  — making it both high-drain and high-capacity.

High-drain batteries are safer and designed for use with high current devices, such as vaporizers. They are also less wasteful, meaning they have a longer life cycle and can last for more recharges. High capacity means that the Gpower can go for longer stretches of time without being recharged, which is useful for just about every situation.


New Design Gpower Battery

        To keep up with the increasing number of vaping markets, a series of new design Gpower batteries have been published, including 18650 and 26650 batteries. They are designed with black and yellow.

gpower battery      The new design Gpower battery shows more information to customers, you are not only to read the pulse discharge current, but also the max continuous discharge current(CDR). By the way, it is important to concern what the CDR is, especially you are using the sub-ohm coils. The new Gpower 2500mAh 35A battery shows the 35A Pulse current with 20A CDR. There are two type 40A batteries: the one is 2600mAh and the other is 3000mAh. We can read that the higher capacity, the lower the CDR. 2600mAh battery is 25CDR and 3000mAh is 20CDR. Mooch , who is a battery master, has tested there are none rated at 3000mAh with a true continuous discharge current over 20A and there are non true continuous discharge current over 30A for 18650 batteries. The last type is 26650 battery. It is rated 4200mAh with 50A pulse discharge current and 25A continuous discharge current. From the site of, we also can see that there have other types batteries. Such as 18350 battery, 18500 battery and other button top battery, which is mainly for flashlights. They are a battery and charger manufacture, owned their own brand “Gpower”. The two type chargers with LCD are able to charge the capacity of battery, which is suitable for all types battery. They are doing OEM and industrial batteries, which you can group them up in anyway you like.