This is a brand new HP ProBook Extended Run battery which runs twice as long as the original 4 cell battery. This battery is going to be physically larger than the original and will cause the back of the laptop to tilt up slightly allow for more air to flow underneath the computer. The superior South Korean cells inside the battery cartridge will provide longer run times between charges as well as a longer service life than cheaper batteries. In addition, Li-ion batteries are not subject to the memory effect common with older battery technology. This means you can recharge your laptop any time without diminishing your battery capacity. This laptop battery replacement is typically superior to the original battery and is 100% compatible with your HP ProBook 4210s 4310s 4311s notebook computer. The battery is individually tested before shipment and backed by 30 day complete satisfaction guarantee and a 2 Year warranty.

Check your current battery to ensure you are ordering the correct battery. It should match the picture above. This high capacity battery will provide about 4 hours to 5-1/2 hours of run time with this computer battery when new, depending on your energy use.

This battery replaces the HP ProBook 4210s 4310s 4311s series laptop batteries and a host more which are listed at the extreme bottom of this web page.

Laptop Battery Express only deals with brand new premium computer batteries. We never carry recycled or used batteries. We only use the highest quality cells inside the battery pack so you will have a long service life (300-500 recharge cycles). We do not use cheaper battery cells which can wear out in a little as 6 months. Our inventory turns rapidly and you will always receive a freshly manufactured battery.