Name: Compaq Presario CQ42-301AX Battery
Brand: Compaq
SKU: BUS41
Price: 30.0 USD
Availability: InStock

Note : 1. 10.8V and 11.1V are compatible, they are in common use.
2. These replacement Presario CQ42-301AX batteries are not compatible with HP Pavilion DV3-1000, DV3-2000 series and HP Pavilion DV6-1000, DV6-2000, DV6-7000, DV7-7000 Series laptops. 3. The 6600mAh(9 Cells) and 8800mAh(12 Cells) batteries will extend out about 1 inch from the bottom of the laptop, bigger size but help cooling and lasting longer.

Product Features

Excellent Quality，Thorough Service

The replacement battery for Compaq Presario CQ42-301AX from BatteryBuy.us will be your best choice. We offer a high-quality laptop battery at a more reasonable price. Our Compaq Presario CQ42-301AX batteries can be charged/discharged for at least 600 cycles. Being made of ABS plastic case and the original IC protection chip, it could give you the new experience of excellent durability.

With first-class quality assurance, the battery for Compaq Presario CQ42-301AX provides protections of voltage, short circuit, charging time, ESD, and so on. Each Compaq Presario CQ42-301AX laptop battery has passed a series of safety certifications, such as CE, UL, ROHS, ISO9001/9002. It will be rigorously tested by our technicians before being shipped to your hands. We will try our best to select a high-quality Compaq Presario CQ42-301AX battery for you.

In addition, we provide 30-Day Money Back Guarantee and a One-Year Warranty for you. If you have any dissatisfaction after receiving the battery for Compaq Presario CQ42-301AX, you can click the link to find more details about our Returns and Warranty service. Please rest assured to purchase from us!

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 Compaq Part Numbers

586006-123
586006-242
586007-1A3
588178-123
588178-421
592260-122
636631-001
HSTNN-I78C
HSTNN-IB1E
HSTNN-Q50C
HSTNN-Q68C
HSTNN-UB0W

Compatible Compaq Laptop Models

Presario CQ42-301AX
2000-2D80ER
G62-366TX
G62-A25SR
G62-A65ET
Pavilion DM4-3098EZ
Pavilion DV4T-4100 CTO
Pavilion DV6-3137EO
Pavilion DV6-6C82EO
Pavilion DV7-6100ER
Pavilion G4-2017TX
Pavilion G6-1045EV
Pavilion G6-1052SI
Pavilion G6-1310ED
Pavilion G6-2000SS
Pavilion G6-2023TX
Pavilion G6-2212ET
Pavilion G6-2265ST
Pavilion G7-2228SG
Pavilion G7-2349SF
Presario CQ42-356TX
Presario CQ56-207SG
Presario CQ57-305EG
Presario CQ58-315SL
Presario CQ58-D51SH

Shipping Methods

Payment Methods

Warranty

1-Year Warranty
All our high-quality replacement batteries for Compaq Presario CQ42-301AX 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 partial customer satisfaction into 'Total Customer Satisfaction'. That's why we offer you a 30-day money back guarantee, except for warranty and return for defects!
Please note: To qualify yourself for reimbursement, please contact our customer service first and get instructions before returning your parcel.

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 to your problem. Once it cannot be fixed by our technical support engineer, we will generate an RMA number (Return Material Authorization) for you to return the faulty battery. we will ship out a new battery without extra charge if the returned one turns out to be defective.
Please note: we won't process returned batteries if you don't provide an RMA number on the returned parcel.

FAQs

Q: Is this Compaq Presario CQ42-301AX battery compatible with my laptop?

A: Through the product compatibility table, you can check if Compaq Presario CQ42-301AX replacement battery is compatible with your laptop model. Clicking product larger Images, you can confirm the selected correctness of Compaq Presario CQ42-301AX laptop battery. What's more, please pay attention to check if the voltage (rated value) is the same as your old one. For more details, please click How to find one correct battery for my laptop?

Q: How long will the Compaq Presario CQ42-301AX battery last? When should I replace my battery?

A: All rechargeable batteries are being spoilt gradually from the date it starts running. Performance degradation will be found by users in 18-24 months. When the runtime is unable to meet your demand, we'd suggest you buy a new Compaq Presario CQ42-301AX battery.

Q: How to charge my Compaq Presario CQ42-301AX laptop battery correctly?

A: There is no need for you to charge the battery over 12 hours, just charge and discharge it normally instead. Because lithium-ion battery has no memory effect. Additionally, you should charge in time when the power remains only 10%-20%. If your battery won't be used for a long time, please charge it once a month and keep battery power over 50%. Moreover, there is no harm even if you charge the battery while using your laptop or supply external power in a fully-charged state. However, if your laptop has been running at high speed for a long time, which causes overheat insides, you'd better take the Compaq Presario CQ42-301AX battery out of the laptop.

Q: How to replace my Compaq Presario CQ42-301AX laptop battery?

1 Turn off the laptop and unplug the power cord.
2 Uninstall your old Compaq Presario CQ42-301AX battery carefully.
3 Use a clean cloth to wipe off the dust from the battery compartment. It'd be better to wipe the exposed conductive part with alcohol to remove the copper rust before installing a new battery.
4 Keep your laptop and battery in a cool dry place (heat may destroy a battery).
5 Install new Compaq Presario CQ42-301AX replacement battery into your laptop, and remember to close the battery latch.