This Original HP HSTNN-DB91 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 HSTNN-DB91 batteries can be charged/discharged 500-750 cycles( have passed rigorously tested ). Every piece HP HSTNN-DB91 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 HSTNN-DB91 battery full 1 year and 30-days money back,100% OEM compatible with the original HP HSTNN-DB91 laptop battery. Also our HP HSTNN-DB91 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 HSTNN-DB91 battery offer same even higher utilisation period than that of the original HP HSTNN-DB91 battery.

Thanks for buy HP HSTNN-DB91 battery at HPLaptopBattery.co.uk. In order to ensure the quality of this HP HSTNN-DB91 battery and let you 100% satisfied with our product, before shipment we will test the quality.

HP HSTNN-DB91 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 HSTNN-DB91 Battery Fits Model

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

Some tips for increase the length of HP HSTNN-DB91 battery

1. Please carefully read the instructions before use the battery.
2. new HP HSTNN-DB91 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 HSTNN-DB91 batteries
3. Best to turn off your HP laptop when the HSTNN-DB91 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 HSTNN-DB91 battery,and placed it in ventilated and dry place.
6. Should avoid excessively high or low temperature environment to use the HP HSTNN-DB91 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 HSTNN-DB91 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 HSTNN-DB91 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 HSTNN-DB91 battery, if you have any questions or feedbacks about our HP HSTNN-DB91 battery or our services please contact us directly, our customer service will reply you within 24 hours.