How to replace HP ProBook 450 G3 battery + How to choose a correct battery

Where you could find a battery replacement: 00:05 CHECK COMPUTER MODEL NUMBER 00:18 STEP 1 - UNLOCK THE BUTTON 00:26 STEP 2 - PRESS THE OTHER BUTTON 00:40 THINGS YOU SHOULD PAY ATTENTION WHEN YOU PURCHASE A NEW ONE 00:46 COMPARE THE SHAPE 00:56 VOLTAGE 01:07 TWO STEPS TO PUT THE BATTERY BACK 01:13 STEP 1 - PRESS IN THE BATTERY 01:23 STEP 2 - LOCK THE BUTTON COMPATIBLE MODELS: HP ProBook 450 G3 ProBook 455 G3 ProBook 470 G3 805047-851 805294-001 HSTNN-DB7B HSTNN-PB6Q HSTNN-Q94C HSTNN-Q95C HSTNN-Q97C P3G15AA RI04 RI06XL