1.6600mAh/4400mAh/11.1 HP Probook 4230S Barrery For HP Probook 4230S Laptop:
HP Probook 4230S Barrery Replacement in laptop-adapter-shop.com made from high quality Li-ion cells(Japan), though this Replacement HP Probook 4230S is not a original one, it is manufactured to meet or exceed the specifications of the original brand manufacturer, you can rest assured to purchase.
2.Acer AL12A32 Laptop Battery:
Replacement Acer AL12A32 Laptop Battery-100% Brand New Sony VGP-BPS35 Laptop Battery.Buy Cheap Battery For Acer AL12A32 from laptop-adapter-shop.com.This high quality Acer AL12A32 Laptop Battery will get your laptop up and running the right way at a reduced price.The Acer laptop battery has been precision-engineered and rigorously tested for capacity, voltage, compatibility and safety to exceed original equipment manufacturer specifications.

3.4400mAh 11.1V Asus A32-K52 Battery:
Our Asus A32-K52 Battery，high quality laptop batteries for Asus A32-K52 Battery: rechargeable li-ion replacement ASUS A32-K52，high quality laptop batteries for Asus A32-K52 Battery 100% compatible with the original Laptop Batteries. No Lead, Also already through ROHS authentication, CE and UL.

4. Sony VGP-BPS34 Battery:
This Sony VGP-BPS34 Battery Pack is an 6600mAh/4400mAh/11.1V rechargeable, removable, Lithium Ion battery . If you are frequently on the road or in meetings and require non-interrupted computing time, keep an extra Sony VGP-BPS34 Battery pack handy and enjoy the true portability of your PC.

Help Tips:
For a new laptop battery, if the system says not identify it. Generally, we need to update the BIOS of the laptop, and open the hardware automatic identification port of your laptop.

There are some knowledge about the new sony laptop battery, you can do it to best your new battery performance as the following:When you use it firstly, you need to full discharge till the laptop shut off, then charge it about 11 hours. Usually, new battery need to fully discharge and charge for three or four times, which can achieve the best performance.

About the new battery, power adapter should be cut off until the computer shutdown. please set the power management of your laptop: Property -> Screen Saver -> power -> Power scheme -> Portable / Laptop -> please cancel about low battery alarm and serious shortage of battery alarm when use the battery.

You could try to take out the HP battery from your laptop, and put it back again, repeat several times. Make sure that it isn’t a poor contact problem between the battery and your laptop.
You must first discharge your laptop battery until the computer turns off , then after 100% fully charged only once to calibrate it. After that, you can connect and disconnect the power adapter when the battery is at any charge level. In addition, after a period of time, you can fully charge and then discharge your battery only once to calibrate the battery power statistics under control of protection circuit, but this will not improve your time capacity of the battery.

From: laptop-adapter-shop.com