TREE.NB RR03XL Battery for HP ProBook 430 G4 440 G4 450 G4 455 G4 470 G4, HP ProBook 440 G5 450 G5 470 G5 851477-421 851477-541 851477-831 851477-832 851610-850

My only gripe is I wish I had the included screwdriver BEFORE removing the old battery. That would have made my life much easier.

Battery went bad in less than 1 year. When fully charged only holds charge for several seconds when power cord is removed.

This fits my Probook 450 G4 perfectly. Once installed, my laptop powered right up with about 50% charge.It is an aftermarket battery, so I am not sure how long it will last.It comes with no instructions to install, because it fits more than one HP model.I followed the installation instructions from Ifixit. The installation is not trivial, and takes about 30 minutes if you have required tools. You need to be careful not to break the keyboard cables.A torx screwdriver is required, for my laptop, which wasn't included.The box includes a phillips head screwdriver, and a spudger, or plastic putty knife.The spudger was huge and looked like it had been used previously. I didn't use it, I used a credit card, which wasn't ideal, but better than the included spudger.Keep in mind, the tools are included for free.

I COULD NOT UNSCREW MY LAPTOP BECAUSE THE TOOL THAT WAS SENT ALONG WITH THE BATTERY DOESN'T FIT, I HAVE TO FIND ONE AT A HARDWARE STORENOW BUT THE BATTERY LOOKS NEW/

No cumplió con mis espectativas, la carga total dura menos de 2 horas. Tendré que comprar otra unidad.

I installed this battery recently. Performance was not good at the beginning. after couple of months, it dead.

I just took the battery off the charger and within 30 minutes it was at 10%.