Description
Specifications
HSTNN-LB8F 931719-850 CD03XL Battery for HP ProBook 640 G4 645 G4 (11.4V 47Wh 3-Cell Li-Polymer)
Voltage 11.4V,
Capacity 4150mAh/47Wh,
Number of Cells/type 3 (Li-Poly),
Colour Black,
Compatible Part Numbers
- HSTNN-IB8B
- 931719-850
- CD03XL
- 931702-421
- 931702-541
- CD03
- CD03048XL
- HSN-114C-4
- HSN-114C-5
- HSN-115C
- HSN-I14C-4
- HSN-I14C-5
- HSN-I15C
- HSTNN-LB8F
- HSTNN-UB7K
Compatible Devices
- ProBook 645 G4
- ProBook 640 G4
- ProBook 650 G4
- ProBook 650 G5
- ProBook 645 G5
- 645 G4
- 640 G4
Tips to Extend Your Battery’s Lifespan
1. Keep it cool – heat is the biggest cause of battery wear, so avoid leaving your HP laptop in direct sun, a hot car, or on soft surfaces that block the vents.
2. Avoid charging to 100% every time – HP Battery Health Manager (in the BIOS or HP Support Assistant) lets you cap charging around 50-100% depending on how you use the laptop, which can meaningfully extend your battery’s usable lifespan.
3. Don’t let it run flat – regularly draining the battery to 0% wears it out much faster than topping up before it gets critically low.
4. Store at around 50% charge – if you won’t be using the laptop for a few weeks or more, store it half-charged in a cool, dry place rather than fully charged or fully empty.
5. Go easy on fast charging – rapid chargers generate extra heat, so standard charging (especially overnight or while idle) is gentler on the battery over time.









