HS04 Battery HP 240 245 255 256 G4 G5 - HSTNN-LB6V LB6U 2200mAh

Does your HP 240, 245, 255 or 256 G4 or G5 no longer last an hour on a charge? The HS04 is the standard external battery for these budget HP 14/15-inch laptops and runs out of life after 2-3 years. This replacement is a drop-in - just slide it in from underneath and lock.

Specifications

• Part: External laptop battery HS04
• Capacity: 2200mAh / 31Wh
• Voltage: 14.6V (4-cell)
• Compatible: HP 240, 245, 255, 256 G4 (2015), G5 (2016)
• OEM: HS04, HSTNN-LB6V, HSTNN-LB6U
• External battery - no disassembly needed

Symptoms of a defective part

• Less than 1 hour per charge
• Sudden shutdown without warning
• Battery hot at idle
• BIOS shows "replace battery"
• Charges only to 95%

Installation

🟢 Easy - around 5 minutes. The HS04 is an external battery, so no screws. Slide both battery latches at the bottom, lift the old battery out, drop the new one in and fully charge for calibration.

Frequently asked questions

Will it fit a 250 G4?
Yes - the 250 G4/G5 shares the HSTNN-LB6V platform.

How many cycles?
Typically 500-700 cycles in average use.

Works on AC without the battery?
Yes, but you lose protection against power loss.