♣Battery type: Li-ion; Capacity:7800mAh Voltage: 11.1V;Cells: 9-cell. Recharge cycles:500; The battery is durable and has overcurrent protection, anti-overcharge, anti-overdischarge and temperature control functions. ♣Compatible Parts: 312-0748, 312-0754, 312-0917, 451-10583, C719R, FU268, FU272, FU274, FU439, KY266, KY268, KY466, KY477, MP303, MP307, MP490, NM631, NM632, NM633, PP27L, PP30L, PT434, PT435, PT436, PT437, PT644, U844G ♣Compatible Models: Dell Latitude E6400, Dell Latitude E6400 ATG, Dell Latitude E6400 XFR, Dell Latitude E6500, Dell Precision M2400, Dell Precision M4400, Dell Precision M6400 ♣Compatible Models: Battery Replacement for KY265 PT434 4M529 KY477 4N369 312-0748 312-0749 W0X4F W1193 KY265 KY477 4M529 4N369 FU268 Compatible for Dell Latitude Laptop E6400 E6410 E6510 E6500 ♣Warranty & Support: Full refund in 30 days, 12 months warranty. If any issues about the product within 365 days, click the button "ASK A QUESTION" and CONTACT US, we will respond within 24 hours via emails and give you friendly after-sales service. Press [CTRL + F] to search your laptop model/part number. ♣Security & Reliability: Our batteries are assembled from top quality material and circuit boards to ensure fast charges and low power consumption, 100% New from Manufacturer, Overcharge and Overdischarge Circuit Protection, Over-temperature and Short-circuit Protection, up to 500 recharge cycles over the life of the battery, meet OEM standard.
Compatible Models
Dell Latitude E6400, Latitude E6500, Latitude E6510, Latitude E6410, Latitude E6400 ATG, Latitude E6400 XFR, Latitude E6410 ATG
Dell Precision M2400, Precision M4400, Precision M4500

Compatible Part Numbers
312-0748 312-0749 312-0753
FU441 FU444 FU571 HJ590 KY265 KY266 KY470 KY471 KY477 NM631 MP492 MP494 PT43 PT434 PT436 PT650 PT653 R822G WG351 XP394

Taking good care of your battery
Having a battery fully charged and the laptop plugged in is not harmful. We suggest that you remove the battery when the hardware gets too hot.
Partial discharges to capacity levels of 20~30% and frequent charges are recommended while a full discharge followed by a full charge is not.
To store a battery for long periods of time, its charge capacity should be around 40% and it should be stored in a place as fresh and dry as possible.