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Black rectangular HP power brick with detachable mains cord

HP

HP HSTNN-LA40 45W 19.5V 2.31A ac adapter

SKU CH-569J-47CGA MPN HSTNN-LA40

Delivers 45 W at 19.5 V 2.31 A for HP 15-AC156NR 15-F009WM 15-F387WM models, includes power cord

  • Genuine HP 45 W adapter powers compatible laptops
  • 5 V 2.31 A output matches original charger specs
  • 100–240 V 1.1 A input works worldwide
  • Built-in protection guards against wrong voltage and shorts
  • Includes power cord for immediate use

Genuine HP 45W AC Adapter

This genuine HP HSTNN-LA40 adapter delivers 45W at 19.5V and 2.31A for compatible HP laptops. It accepts a universal 100-240V input at 1.1A across 50-60Hz frequencies. The unit includes a power cord and supports models such as the 15-AC156NR, 15-F009WM and 15-F387WM. It is supplied new and ready for immediate use.

Thermal Behaviour and Power Draw

The adapter operates within standard input ranges of 100-240V at 1.1A and 50-60Hz to produce a steady 45W output. Built-in safeguards protect against incorrect voltage, short circuit and internal overheating during normal operation. The unit runs silently with no moving parts to generate noise. Power draw scales with the connected laptop's demand up to the 45W limit.

Build Quality and Daily Use

The adapter housing is manufactured from quality materials and inspected to meet manufacturer specifications. A power cord is included in the box for a complete connection from wall outlet to laptop. Smart protection features guard against voltage errors, short circuits and overheating events. The barrel connector fits supported HP 15 series models directly without extra adapters.

Highlights

  • Genuine HP 45 W adapter powers compatible laptops
  • 5 V 2.31 A output matches original charger specs
  • 100–240 V 1.1 A input works worldwide
  • Built-in protection guards against wrong voltage and shorts
  • Includes power cord for immediate use

Specifications

No published specifications for this item yet.

Questions about this item

How do I connect the HSTNN-LA40 adapter to my HP 15-AC156NR laptop?

Plug the barrel connector into the laptop's DC jack, then connect the included power cord to the adapter's IEC inlet and a 100-240V AC outlet.

Will the power cord or adapter need replacement after extended use?

The detachable power cord can be swapped if damaged; the adapter itself has no user-serviceable parts and runs at 45W with built-in overheating protection.

What happens if I draw the full 2.31A output continuously?

The 45W unit maintains 19.5V up to 2.31A; sustained maximum load engages internal thermal safeguards that may throttle output until temperatures drop.

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