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Battery for Asus X751NA-DS21Q 3400 mAh Laptop

Green Cell

18 reviews

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Well known manufacturer Green Cell
High-quality Panasonic cells guarantee long operating times, high durability and maximum safety
The most modern technology ensures that this battery works as reliably as the original
Capacity: 3400 mAh | Voltage: 14.4V / 14.8V | Warranty : 12 Months

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+44 808 196 5006

Product code: AS77ULTRA

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Green Cell battery will restore the mobility of your Asus X751NA-DS21Q laptop

Thanks to Green Cell battery your laptop will gain a new life.Using the highest quality components and a perfect fitting will restore your laptop's mobility. It's easy to fit in your device and you can be sure it's fully compatible with your notebook's electronics and software.

To achieve the highest efficiency and durability in the battery, the following has been applied:

High-quality Green Cell lithium-ion cells
Modern control electronics
Housing made of durable ABS plastic

Battery is precisely made and thoroughly tested.

Fresh energy

New life for your laptop

High-quality lithium-ion Green Cell cells

The cells from Li-Ion Green Cell are tested batteries with high, real capacity, high durability and no memory effect. They are the heart of the battery and provide long battery life. Their use gives:

Large capacity - 3400 mAh - this is 20% more than other batteries with non-branded cells of low quality
High durability - the cells can withstand up to 1000 charge cycles, which gives 2-3 years of trouble-free operation. Their capacity decreases very slowly and after 300 charging cycles (about 1 year of operation) they still retain more than 80% of their capacity

Protection against
overloading

Protection against
deep discharge

Short-circuit
protection

Thermal
protection

Modern control electronics

It allows the battery to communicate with the laptop, providing information about the state of charge, remaining working time, or time remaining to be fully charge. The majority of models use electronic circuits from Texas Instruments, which are also used in original batteries. This guarantees that:

100% match to the computer electronics and drivers - the battery communicates with the laptop exactly like the original battery
Advanced protection - protection against excessive discharge, overcharging and thermal protection ensure proper and safe operation of the battery

Up to

1000

charging cycles

Manufacturing precision

The highest quality materials and precisely reproduced shape make it:

The battery fits perfectly into the laptop case and is easy to install
The housing is physically resistant and protects sensitive cells and electronic circuits

Replace the battery, not all the equipment!

A new battery is a better and more economical alternative than changing your computer. Not only will you save money, but you will also take care of the environment. Your favourite laptop will gain a new life and we will take care of recycling.

Compatible with following battery models

Compatible with following devices

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Technical specifications

Manufacturer:

Green Cell

Capacity:

3400 mAh

Voltage:

14.4V / 14.8V

Number of cells:

Cells technology:

Li-Ion

Cells manufacturer:

Panasonic

Overdischarge protection:

Yes

Overcharge protection:

Yes

Colour:

Black

Warranty:

12 Months

Condition:

New

Product code:

AS77ULTRA

Customer feedback and questions

average grade

(18 reviews)

4.8

/ 5

Express your opinion

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average grade

4.8

/ 5

(18 reviews)

To add a comment, you must be logged in and have the purchased product.

Arek , 2022-10-05

Comment confirmed by purchase

The battery works as it should. You have to follow the instructions and everything will be OK. I recommend!!

Wojciech , 2022-11-21

Comment confirmed by purchase

Excellent

Jan , 2022-12-12

Comment confirmed by purchase

Approx. Everything as ordered

Mateusz , 2022-09-10

Comment confirmed by purchase

At the beginning, after installing ultra GC, the system showed 2.5h of battery life all day on different settings, etc., the next day I did an update and reboot the settings, plus I installed an application that monitors the battery and settings for charging capabilities, etc., the system then recognized the higher capacity and showed 5.5h at medium settings, and on the highest settings and running in the background all things so that the consumption was at 90% of the processor, graphics card, memory and disk and max display went down to 3 hours and on minimum settings with minimum lighting shows 8.3 hours of work, of course these are approximate times, but go ahead with remote work, etc. I used on medium settings with an additional screen and with a reduction of settings to a minimum of 40% to 10% of the battery life lasted ~6.2h. That is why I recommend it to all those interested.

Wik , 2023-02-22

Comment confirmed by purchase

The battery does its job perfectly.

Andrzej , 2024-05-13

Comment confirmed by purchase

Both the size of the battery and the plugs fit perfectly.

Tomasz , 2022-08-07

Comment confirmed by purchase

Battery discharged after 3 hours, I do not recommend

Arek , 2024-03-04

Comment confirmed by purchase

For me, the most important thing is high quality and that's what I have. It works just as well as the factory one, a good choice. The battery is perfectly matched to my device

Bogdan , 2024-09-13

Comment confirmed by purchase

Good quality, modern components and work safety.

Paweł , 2024-03-12

Comment confirmed by purchase

I can work freely again, without the stress of running out of energy. Very good value for money. The battery charges as it should, the capacity is also OK.

Karol , 2023-12-08

Comment confirmed by purchase

It is completely compatible with my laptop. You can see that the manufacturer has taken care of the high quality of the device. The battery fits my laptop perfectly

Arnedo , 2024-09-28

Comment confirmed by purchase

Looks like a good product, only time can confirm this rating 👍️

Hervé , 2024-09-07

Comment confirmed by purchase

Albert , 2023-04-05

Comment confirmed by purchase

Damian , 2023-02-15

Comment confirmed by purchase

Wiktor , 2023-01-21

Comment confirmed by purchase

Marek , 2022-11-22

Comment confirmed by purchase

Wojciech , 2022-11-15

Comment confirmed by purchase

Frequently Asked Questions

Connected not loading, what should I do?

A problem with charging a new battery is rare with Green Cell models. However, if this is the case, the link below provides instructions on how to do this: https://www.youtube.com/watch?v=G4aWD3pmTIM

How can I extend the battery life of my laptop?

Just follow these 5 steps:

Avoid short charging times as the battery in our device has the number of charging times specified by the manufacturer.
Use batteries. Our rechargeable battery is designed for use. Continuous removal of the battery from the device does not have a positive effect on its condition.
Do not allow full discharge. Today's lithium-ion and lithium-polymer batteries are extremely sensitive to deep discharge. Repeated repetition of such a situation can cause irreversible damage to the battery.
Pay attention to the operating temperature. Temperature is an extremely important factor affecting the life of our battery. To ensure optimal temperatures, you should regularly clean your laptop's heat-dissipation system (with compressed air or a compressor) and avoid using the devices on soft surfaces (which can obstruct cooling vents).
Let the battery rest. If you plan to take a long break from using your laptop, remove the battery and place it in a dry, cool place. It is worth loading it to about 50% to avoid a complete discharge.

Is an 11.1V battery suitable if the previous battery is 14.4V?

The 11.1V battery is not used interchangeably with 14.4V and vice versa. This can cause permanent damage to your laptop. When choosing a new battery for your laptop, pay attention to the voltage at which the factory battery was. You can find this information directly on the battery.

Why are the batteries available in two versions, 10.8V and 11.1V, is that correct?

It is absolutely correct. Voltage differences result from different measurements and the cells used. It should be noted that such small voltage differences are not noticed by our laptop and do not affect its operation in any way.

Can the battery capacity (mAh) be larger?

It is possible to use higher capacity batteries. The battery capacity is expressed in milliampere hours (mAh), the higher the capacity value, eg 6800 mAh, the longer the working time can be achieved with one battery charge, which increases our mobility and independence.

How do I choose the right battery for my device?

Below are two ways to choose the right battery for your device.

device model
The tool model is usually located on the handle or on the body next to the motor of the device.
battery model
The battery code is located on the bottom of the battery, often it is a digital code, eg 194309-1, or mixed with letters, eg BL1830.

Can the battery capacity (mAh) be larger?

It is possible to use higher capacity batteries. The battery capacity is expressed in miles of ampere hours (mAh), the higher the value of the capacity, eg 3000 mAh, the longer the working time can be achieved on one battery charge, which increases our mobility and efficiency.

Laptop power supply - what voltage?

When choosing a new power supply for your laptop, you should check the voltage of the charger - this parameter should match your original device.

Is it possible to connect a weaker power supply to the laptop?

Using an AC adapter with a lower amperage than the original can cause a number of adverse changes in the operation of your laptop. For example, a power supply that is too weak can overheat because the laptop's components are not being supplied with sufficient power. We therefore recommend that you use chargers with the same or higher amperage.

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