I run it on the battery when I travel, which is infrequently. I have to replace the battery about once a year. Maybe this is standard, maybe I should take the battery out when I'm using electrical power.after my search,i decided to buy one for my laptop as a present. it is worhty. well performing in my laptop wothout any problem. it is so convenient now.

wonderful battery life. there is no need for you to pay extra for it, but that's a different review, I guess. It fit our daughters laptop perfectly . If you're planning on using your laptop on the battery,get this battery. it is really worth the money i paid.

this item does not last quite as long as the original ,butwill last about 85-90% of the big boys, depending it them a really good, cost-effective choice .

i have used them for a couple weeks now and they perform pretty well.

it is hard to buy a battery online. Not knowing what you will receive.however, this item is worth the money i paid.