This is the highest rating available for a 6 cell battery pack. The higher the mAh rating, the longer your battery will run before it needs to be recharged again. This battery is still compatible eve if your current battery has a lower mAh or Wh rating. It just means this battery will last longer than the original! Tech Specs Xtend brand; 11.1 Volts - also compatible with 10.8 Volt systems; 5200 mAh or 58 Whr; runs longer than 4400 mAh batteries; 6 Cell Li-ion (9 cell available here); Samsung (South Korea); Silver-Grey; 2 Year Warranty; 30 day full satisfaction guarantee; 300-500 recharge cycles; Compatible with these Dell battery part numbers 312-0910 312-7414 312-7415 1M215 4M529 C2072 DFNCH GU715 H1391 HJ590 J905R P018K PP27LA PP27LA001 PP30LA PP30LA001 R2896 RG049 TD432 TX283 U5209 W0X4F WG351 XP394 Y4372


