New Compaq Presario CQ50-135ES 12Cell Laptop Battery - 1 Year warranty

We are selling batteries since 2001. We are genuine US Sellers selling batteries since 2001. You may find other places who sell for few bucks cheaper but they do not offer warranty or they do not nobility warranty.

How to Care your Compaq CQ50-135ES Laptop battery to last longer

Once a month completely drain battery until all power is out and then recharge fully, that makes battery to achieve its full cycle and do this every month.

Frequently Asked questions & Why our batteries are the best

Our batteries have the most excellent quality Premium Cells.

We have 6Cell battery for this laptop- / see for other parts you many need

What is Milliamp Hours mAh - Measures battery power capacity. Higher the number means more run time. For this model Batteries are comes in 4400mah and 8800mah.

95wHr or 47 wHr  What it means.  Watt hour means total power laptop takes to run. If 47whr battery runs 160minutes then a 95whr comes almost double. So the result is 4-5 hours run time. Remember, run time depends on what you are doing on the laptop. If you do basic stuff then it lasts longer. If you are working on numerous applications it may come less.

Power Savings 8800 mAh laptop battery saves money on power bill. see below
We have 6Cell battery for this laptop- / see for other parts you many need

Always use the power provide when ever possible and try to reduce brightness of screen and use screen saver, use sleep mode and when ever you are using DVDs or working with video editing or other power consuming applications always use AC Power adapter. Understand that battery cell constantly decreases its power holding capacity over course of time. You many not get full amount of charge but reduced run time. It is normal.