The CS03XL is an 11.4V 46.5Wh Li-Polymer replacement battery for HP EliteBook 840, 850, 740, 745, 755 G3/G4 and HP ZBook 15u G3/G4 series mobile workstations. It directly replaces OEM part numbers CS03XL, HSTNN-IB6Y, HSTNN-DB6U, 800513-001 and 800231-1C1. Using premium Li-Polymer cells with an integrated BMS, it ensures stable voltage delivery and protection against overcharge, restoring original mobile productivity for professional business notebooks, backed by a 1-year warranty.
Product Specifications
| Battery Model | CS03XL |
| Capacity | 46.5Wh |
| Voltage | 11.4V |
| Battery Type | Li-Polymer |
| Color | Black |
| Condition | 100% Brand New Replacement |
| Warranty | 1-Year Warranty |
Replace Part Numbers
- CS03 / CS03XL
- HSTNN-IB6Y / 800231-1C1
- HSTNN-DB6U / 800231-2C1
- 800513-001 / 800231-141
- HSTNN-DB6S / HSTNN-I33C-4
- HSTNN-I41C-4 / HSTNN-I41C-5
- HSTNN-I33C-5
Compatible Laptop Models
- For HP EliteBook 840 G3 / G4
- For HP EliteBook 850 G3 / G4
- For HP EliteBook 745 G3 / G4
- For HP EliteBook 755 G3 / G4
- For HP ZBook 15u G3 / G4
- For HP mt43 Mobile Thin Client
FAQ
- Q: Does this battery fit the HP EliteBook 840 G2?
- A: No — the CS03XL is for the G3 and G4 models only; the G2 and G1 models use the CM03XL battery which has a different internal connector.
- Q: How can I tell if my old battery is a CS03XL?
- A: Check the "Replace with HP Spare" part number on your original battery label; it should list 800513-001 or 800231-1C1 for the CS03XL series.