HP HSTNN-PB6W - RR03XL RR03 4-Cell Battery for HP ProBook 430 440 450 455 470 G4 MT20

RR03XL RR03 4-Cell 11.4V 48Wh Li-ion Battery for HP ProBook 430, 440, 450, 455, 470 G4 / G5, MT20

The HP 851610-855 (RR03XL) battery is a genuine 4-cell lithium-ion pack designed for reliable power in HP ProBook G4 and G5 notebooks. Engineered to deliver up to 48 Wh of energy, it ensures long-lasting runtime, consistent voltage stability, and dependable recharge cycles for daily business use.

Technical Specifications

• Voltage: 11.4 V
• Capacity: 4210 mAh (4.21 Ah)
• Power: 48 Wh
• Cells: 4-Cell (Li-ion)
• Battery Type: Rechargeable Lithium-ion
• Form Factor: Internal Battery Pack
• Color: Black
• Model Compatibility: HP ProBook G4 / G5 Series, HP mt20

Replaces the Following Part Numbers

RR03XL, RR03048XL, RR03, 851477-421, 851477-541, 851477-831, 851477-832, 851610-850, 851610-855, HSTNN-PB6W, HSTNN-LB7I, HSTNN-UB7C, HSTNN-Q01C, HSTNN-Q02C, HSTNN-Q03C, HSTNN-Q04C, HSTNN-Q06C

✅ Confirmed Compatibility

Please note that the following list is not exhaustive. Compatibility depends on your laptop’s specific configuration and BIOS version. It’s essential to verify compatibility with your system manufacturer.

✔️ HP ProBook Series:
430 G4, 440 G4, 450 G4, 455 G4, 470 G4, 450 G5

✔️ HP Mobile Thin Client:
mt20

☑️ Key Features

☑️ Reliable 4-cell Li-ion pack providing stable power delivery
☑️ Designed for extended runtimes and reduced self-discharge
☑️ Integrated over-charge and short-circuit protection
☑️ Lightweight internal design for modern HP ProBook models
☑️ Meets original OEM voltage and safety specifications