Replace your worn-out battery with a brand new battery for the HP CM03XL battery for the HP EliteBook 840 and 850 G1 laptops.

This HP CM03 battery replaces the original battery found in HP EliteBook 840 G1 and 850 G1 models. HP makes additional versions of the same model under the G2 series. But this CM03 battery only fits the G1 (Generation 1) series for the EliteBook 840 and 850

We use the highest quality lithium-ion battery cell technology in our batteries. The superior Samsung cells and Texas Instruments components last longer, charge faster, and weigh less than cheaper, lower quality batteries.

Each battery is tested, inspected and backed by a full 2 Year warranty. We provide a 30 day money back guarantee if you are not completely satisfied.

You can expect about 2 hours to 4 hours of run time with this HP CM03 battery when new, depending on your energy use.