External Laptop Battery Charger for HP ProBook 4530s 4540s, 633805-X 6 – direct-charging
PwrON Compatible 18.5V 3.5A 65W AC Adapter Charger Replacement for HP ProBook 4540s A1J57AV A5S83AV Power - Walmart.com
Genuine HP ProBook 4540S AC Charger Power Adapter | eBay
For HP ProBook 4510S 4520S 4530S 4540S AC Adapter Power Supply Cord Charger | eBay
19V 4.74A 90w Laptop AC DC Power Supply Adapter Charger for HP Probook 4440s 4540S
HP ProBook 4540s original ac-adapter 90 Watt - sparepartworld.com
HP ProBook 4540s original ac-adapter 65 Watt - sparepartworld.com
PwrON 18.5V 3.5A 65W Replacement AC Adapter Charger For HP Model Numbers: HP ProBook 4540s, HP ProBook 4540s, B5P37UT, HP ProBook 4540s, B2D26UT, HP ProBook 4540s, A1C68AV, HP ProBook 4540s, A1J57AV -
65W AC Adapter Laptop Charger for HP Pavilion Cq61 Cq60 Cq58, 2000-2A20NR Probook 4540s 4440s 4430s 4520s 4530s 6570b 6560b - Walmart.com
HP ProBook 4540s Replacement Battery
fit for 90W Charger fits Compatible with HP ProBook 4540s/6455b/6560b/4730s/4535s/4320s Gadgets - Newegg.com
New Laptop AC Adapter for HP ProBook 4540s, 412786-001, 463554-003, 609948-001, HP-AP091F13P SELF, PPP014L-SA | Best Buy Canada