This Original HP Probook 4311S battery is the highest quality product you can buy which has passed international certification( CE, UL, ROHS, ISO9001/9002 ). No memory effect, works great as a spare providing extra power when traveling or away from the home/office. Long life, these HP Probook 4311S batteries can be charged/discharged 500-750 cycles( have passed rigorously tested ). Every piece HP Probook 4311S battery pack combination protection by the PCP board, PCM board, intellectual power measurement circuit : automatically adjusts the charging time to achieve the maximum amount of charge, over-charge protection, over-discharge protection, overcurrent protection, short circuit protection.

We offer superb pre-sales and after-sales service, warranty this HP Probook 4311S battery full 1 year and 30-days money back,100% OEM compatible with the original HP Probook 4311S laptop battery. Also our HP Probook 4311S laptop battery have take rigid test to ensure stability and safety for users before out of the battery manufactory. Usually this high capacity( 4 Cell 2600mAh ) HP Probook 4311S battery offer same even higher utilisation period than that of the original HP Probook 4311S battery.

Thanks for buy HP Probook 4311S battery at HPLaptopBattery.co.uk. In order to ensure the quality of this HP Probook 4311S battery and let you 100% satisfied with our product, before shipment we will test the quality.

HP Probook 4311S Battery Compatible Part No.

• 530974-251
• 530974-321
• 530974-361
• 530975-341
• 579320-001
• AT902AA
• HSTNN-DB91
• hstnn-i69c-3
• HSTNN-OB91
• hstnn-ob92
• HSTNN-XB91
• hstnn-xb92

HP Probook 4311S Battery Fits Model

• ProBook 4210s
• ProBook 4310s
• ProBook 4311
• ProBook 4311s

Some tips for increase the length of HP Probook 4311S battery

1. Please carefully read the instructions before use the battery.
2. new HP Probook 4311S battery for the first time use, make sure to run out all the power, then to charge about 12 hours.
4. Best to use a dedicated AC adapter for charging the new HP Probook 4311S batteries
3. Best to turn off your HP laptop when the Probook 4311S battery charging, don't unplug the power charging or use your computer when in charging.
5. If don't use laptop for a long time, please remove the HP Probook 4311S battery,and placed it in ventilated and dry place.
6. Should avoid excessively high or low temperature environment to use the HP Probook 4311S laptop battery, the temperature is too low or high will affect the battery life.

Your order will be processed within 24 hours, and we can delivery to Whole European Countries.

1. Brand new,100% OEM compatible with the original HP Probook 4311S battery.
2. Full One Year Warranty,30 Days Money Back policy in every product we sell. During the product warranty days, unartificial defective product is free to be replaced, and we will afford all shipping fee.
3. Hi-quality,CE, RoHS, UL and ISO9001:2000 certification for quality assurance,100% safe for use.
4. Guaranteed to meet or exceed original specifications.
5. Grade-A cells(PANASONIC) for our HP Probook 4311S replacement battery pack.
6. Best quality products at the best price with best after sales service,you will be satisfied with our service and this Probook 4311S battery, if you have any questions or feedbacks about our HP Probook 4311S battery or our services please contact us directly, our customer service will reply you within 24 hours.