Note : 11.55V and 11.4V are compatible, they are in common use.

Product Features

Excellent Quality，International Standards

BatteryBuy.co.uk is your best choice of high quality HP laptop batteries! The brand new 41Wh(3 cells) replacement HP 15-DW3021NK Li-Polymer battery is made with superior quality cells from Samsung, Panasonic and LG to ensure the best performance. HP 15-DW3021NK battery case is made of non-flammable and durable plastic, which is fire-retarded and non-perishable when dropped from low heights.

We are very strict with the safety requirements. Every our high-grade replacement battery for HP 15-DW3021NK laptop has been tested to prove that they can match or surpass original HP battery performance and be 100% compatible with Original Manufacturer Specifications. In compliance with international standards, they have obtained a series of rigorous safety certifications such as CE, UL, ROHS, ISO9001/9002. In general, this replacement HP 15-DW3021NK battery can be charged/discharged up to more than 600 cycles.

Buy with Confidence! All our HP 15-DW3021NK batteries carry a One-Year warranty and a 30-day money back guarantee if you are not completely satisfied. What’s more, Each HP 15-DW3021NK battery will be charged and tested before shipment. When you buy our products, you're buying trust! If you have any question, please contact us freely! It is our pleasure to help you solve problems.

Multiple Intelligent Protection

INTELLIGENT PROTECTION
VOLTAGE PROTECTION
SHORT CIRCUIT PROTECTION
ESD PROTECTION
OVER HEAT PROTECTION
OVER (DIS)CHARGE PROTECTION
CHARGING TIME PROTECTION
CLASS A PROTECTION

Product Larger Images

Compatible HP Part Numbers

HSTNN-1B80
L11421-2D2
HSTNN-DB9D
L11421-1C1
HSTNN-IB80
L11421-271
L11421-2C2
HT03041XL
HSTNN-DB8S
L11421-542
L11421-2C1
L11119-857
HSTNN-DB8R
HSTNN-LB8M
L11119-856
L11119-855
L11421-2C3
HT03XL
HSTNN-IB8O
L11421-422
L11421-1C2
L11421-2D1
L11421-421

Compatible HP Laptop Models

15-DW3021NK
14-DK0000NP
14-DK0022NL
14-DK0037NW
14-DK1019NF
14S-DK0076AU
15-DW2003NM
15-DW2003UR
15-DW3005UR
15-DW3013NT
15S-DU2041TX
17-BY1022CL
17-CA1001UR
Notebook 15S-FQ1006NG
Notebook 15S-FQ1010TU
Notebook 15S-FQ1045NH
Pavilion 14-CE3064TX
Pavilion 14-CE3910NA
Pavilion 14S-CF1030TU
Pavilion 14S-CF1038TU
Pavilion 15-DA0038NH
Pavilion 15-DA0088NM
Pavilion 15-DA0094NE
Pavilion 15-DA0138UR
Pavilion 15-DB0008CA
Pavilion 15-DB0011NO
Pavilion 15-DB0218UR
Pavilion 17-BY0147UR
Pavilion 17-CA0003NA

Shipping Methods

Payment Methods

Warranty

1-Year Warranty
All our high quality replacement batteries for HP 15-DW3021NK laptop come with a 1-year warranty. Warranty is applicable if the buyer has installed the battery properly in the device and has treated the battery correctly.

30-Day Money Back Guarantee
Our goal is to turn customer satisfaction into ‘Complete Customer Satisfaction’. That's why we offer you a 30-day money back guarantee, on top of our warranty and RMA procedure for defects!
Please note: in order to qualify to get your money back, you must first contact us and await instructions before sending back your product.

Returns

If you have a problem with one battery which bought from us, please contact us first. We will process your request and try to find a solution for your problem. If the problem cannot be fixed by our technical support engineer, we will generate an RMA number (Return Material Authorization) for you. If inspection concludes that the returned battery is defective, a new battery will be shipped out without extra charge.
Please note: we cannot process returned batteries if you have not yet received an RMA number.

FAQs

Q: How to check whether this battery is compatible with my laptop?

A: First, find out your old battery part number (e.g. 'HP 15-DW3021NK') or the model name of laptop and then match with our product compatibility table. Second, please compare your old battery with our product images to make sure their shapes are the same. Lastly, check the voltage (rating) is the same as the old one. For more details please click How to find one correct battery for my laptop?

Q: How to charge my HP 15-DW3021NK battery properly?

A: There is no need to charge your new HP 15-DW3021NK battery for 12 hours for the first time use, because lithium-ion battery is with no memory effect. So you only need to charge and discharge it normally. What’s more, you should avoid recharging it till exhausting battery power, because it will bring to much damage. Therefore you have to charge it when remaining power is nearly 10-20%. Additionally, if your battery has not been used for a long time, please charge it once a month, keep the remaining power about 40% and then store it in a dry and cool environment.

Q: Is it necessary to remove my HP 15-DW3021NK battery when connecting to the power supply?

A: In general, it will not cause any damage without removing battery when the laptop connects the power supply. The battery will not be charged anymore after it is fully charged. On the contrary, it will turn to the use of power supply system. However, when your laptop has run for a long time at high speed, you’d better remove battery out of laptop due to the internal overheating.

Q: A few Tips to maintain your HP 15-DW3021NK battery and extend its life:

1 Avoid Full Discharges.
2 Tweak Your Built-In Power Saving Options.
3 Disable unnecessary programs that draw energy from your notebook.
4 Adjust the brightness of your laptop display as much as possible within an acceptable range.
5 Keep your laptop and battery in a cool dry place (heat may destroy a battery).