Home > Batteries for Compaq laptops > Battery for Compaq Presario V3821AU laptop

• Overview
• Compatibility
• Shipping
• Payment
• Warranty

Our replacement Compaq Presario V3821AU battery is the product of highest quality, which has obtained international certification ( CE, UL, ROHS, ISO9001/9002 ). Without any memory effect, the battery works as powerful as an extra power supply when traveling or being away from home/office. With long life, this replacement battery for Compaq Presario V3821AU laptop can be charged/discharged for more than 500-750 cycles (has been rigorously tested). Every piece of replacement Compaq Presario V3821AU battery pack is under the united protection of the PCP board, PCM board and intellectual power measurement circuit: automatically adjusting the charging time to achieve the maximum amount of charge, with over-charge protection, over-discharge protection, over current protection and short circuit protection. We offer superb pre-sales and after-sales service, providing a full one year warranty and a 30-day money back guarantee for this replacement Compaq Presario V3821AU battery, 100% OEM compatible with the original Compaq Presario V3821AU battery. Our batteries for Compaq Presario V3821AU laptop have also undergone rigorous tests to ensure stability and safety before being dispatched from the battery manufactory. Usually, this high capacity (8800mAh, 12 cells) replacement Compaq Presario V3821AU battery offers the same or even longer usage period as/than that of the original Compaq Presario V3821AU battery. Thanks for buying battery for your Compaq Presario V3821AU at hplaptopbattery.co.uk. In order to ensure the quality of our replacement Compaq Presario V3821AU battery and offer you a 100 percent satisfaction with our products, we will strictly test the product quality before shipment.

Compatible Part Numbers

• 411462-121
• 411462-141
• 411462-251
• 411462-261
• 411462-321
• 411462-361
• 411462-421
• 411462-442
• 411463-141
• 411463-161
• 411463-251
• 411464-141
• 417066-001
• 417067-001
• 432306-001
• 432307-001
• 436281-141
• 436281-241
• 436281-251
• 436281-321
• 436281-341
• 436281-361
• 436281-422
• 436281-442
• 436281-651
• 440772-001
• 441243-141
• 441243-241
• 441243-251
• 441243-361
• 441243-421
• 441243-441
• 441425-001
• 441462-251
• 441611-001
• 446506-001
• 446507-001
• 451864-001
• 452056-001
• 452057-001
• 454931-001
• 455804-001
• 455806-001
• 460143-001
• 462337-001
• EV088AA
• EV089AA
• EX940AA
• EX941AA
• HP010515-DK023R11
• HP010515-P2T23R11
• HP010615-S2T23R11
• HSTNN-0B46
• HSTNN-C17C
• HSTNN-DB31
• HSTNN-DB32
• HSTNN-DB42
• HSTNN-DB46
• HSTNN-IB31
• HSTNN-IB32
• HSTNN-IB42
• HSTNN-LB31
• HSTNN-LB311
• HSTNN-LB42
• HSTNN-OB31
• HSTNN-OB42
• HSTNN-Q21C
• HSTNN-Q33C
• HSTNN-W20C
• HSTNN-W34C
• HSTNN-XB32
• NBP6A48A1
• VE06
• VE12

Fit Models

• Presario V3800
• Presario V3801
• Presario V3801AU
• Presario V3801TU
• Presario V3801TX
• Presario V3802AU
• Presario V3802TU
• Presario V3802TX
• Presario V3803AU
• Presario V3803TU
• Presario V3803TX
• Presario V3804AU
• Presario V3804TU
• Presario V3804TX
• Presario V3805AU
• Presario V3805TU
• Presario V3805TX
• Presario V3806AU
• Presario V3806TU
• Presario V3806TX
• Presario V3807AU
• Presario V3807TU
• Presario V3807TX
• Presario V3808AU
• Presario V3808TU
• Presario V3808TX
• Presario V3809AU
• Presario V3809TU
• Presario V3809TX
• Presario V3810AU
• Presario V3810TU
• Presario V3811AU
• Presario V3811TU
• Presario V3812AU
• Presario V3812TU
• Presario V3813AU
• Presario V3813TU
• Presario V3814AU
• Presario V3814TU
• Presario V3815AU
• Presario V3815TU
• Presario V3816AU
• Presario V3816TU
• Presario V3817AU
• Presario V3817TU
• Presario V3818AU
• Presario V3818TU
• Presario V3819AU
• Presario V3819TU
• Presario V3820AU
• Presario V3820TU
• Presario V3821AU
• Presario V3821TU
• Presario V3822AU
• Presario V3822TU
• Presario V3823AU
• Presario V3823TU
• Presario V3824AU
• Presario V3824TU
• Presario V3825AU
• Presario V3825TU
• Presario V3826AU
• Presario V3826TU
• Presario V3827AU
• Presario V3827TU
• Presario V3828AU
• Presario V3828TU
• Presario V3829AU
• Presario V3829TU
• Presario V3830TU
• Presario V3831TU
• Presario V3832TU
• Presario V3833TU
• Presario V3834TU
• Presario V3835TU
• Presario V3836TU
• Presario V3837TU
• Presario V3838TU
• Presario V3839TU
• Presario V3840TU
• Presario V3841TU
• Presario V3842TU
• Presario V3843TU
• Presario V3844TU
• Presario V3845TU
• Presario V3846TU
• Presario V3847TU
• Presario V3848TU
• Presario V3849TU
• Presario V3850TU
• Presario V3851
• Presario V3851TU
• Presario V3852TU
• Presario V3853TU
• Presario V3854TU
• Presario V3855TU
• Presario V3856TU
• Presario V3857TU

Some tips for increase the length of replacement Compaq Presario V3821AU battery

1. Please carefully read the instructions before using the battery.
2. Before using the new replacement Compaq Presario V3821AU battery for the first time, make sure that the battery is fully discharged and then get it charged for about 12 hours.
3. You'd better use a dedicated AC adapter when charging the new Presario V3821AU battery
4. You'd better turn off your Compaq laptop when the Presario V3821AU battery is charging; do not pull out the power plug or use your computer when charging.
5. If you don't use laptop for a long time, please remove the replacement Compaq Presario V3821AU battery, and place it in a ventilated and dry place.
6. Excessively high or low temperature environment should be avoided when using the Presario V3821AU laptop battery, as the too low or too high temperature will affect the battery life.

1. After payment we will arrange the shipment within 24 hours.
2. When the shipment is confirmed, you'll receive a tracking number in your confirmation e-mail.
3. This replacement Compaq Presario V3821AU battery will be sent well packed in anti-static bag, Boxed in sponge padded box and further sealed in plastic bag.

1. Brand new,100% OEM compatible with the original Compaq Presario V3821AU 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 Compaq Presario V3821AU replacement battery pack.
6. Provided with best quality products at the best price as well as the best after sales service, you will be fully satisfied; if you have any questions or feedbacks about our replacement Compaq Presario V3821AU battery or our services, please contact us directly; our customer service will reply you within 24 hours.