HS04 Battery for HP 250 G4 255 G5 Pavilion 15-ay 15-ba 15-ac | 14.8V 2600mAh 41Wh 4-Cell

Detailed Product Specifications and Features:

Core Technical Parameters:

Property	Specification
Model Numbers	HS04 / HS03 Battery (Interchangeable Upgrade)
Battery Type	Lithium-ion (Grade A 18650 Cylindrical Cells)
Voltage	14.8V (Fully compatible with 14.4V / 14.6V)
Capacity	2600mAh / 41Wh
Cells	4-Cell
Connector	External Snap-in Interface
Condition	100% Brand New from Factory
Life Cycle	500 - 800 recharge cycles
Multiple Protection	Over Current, Over Voltage, Over Charge & Discharge, Overheat, Short Circuit, ESD, EMI
Color	Black
Certifications	UL2054, CE, FCC, RoHS, UN38.3, MSDS, IEC62133
OEM/ODM	Yes(Accepted)
Warranty	18 Months After Sales, 24/7 Email Support.
Product Dimensions	13 x 3.31 x 2.28 inches
Item Weight	11.4 ounces

Technical Note:

Design Note: The HS04 is an external removable battery with a “cylindrical bar” shape.
Series Fitment: It is the primary battery for HP “Generation 4 & 5” budget and business laptops.
Voltage Precision: This is a 4-cell serial architecture (14.8V); using a 10.8V battery in these models will result in failure to charge.
Safety Note: HTJ units feature a reinforced center-latch to prevent the battery from rattling, a common issue in the 15-AY plastic chassis.
Important: Safely replaces the 3-cell HS03 for longer runtime.

Product Features:

• Battery Newest Premium Grade Cells
• Best Circuit Board
• Multiple command chip control, keep the battery stable charge and discharge;
• Over-charger protection and discharger protection, short-circuit protection, ensure fast charges and low power consumption
• Easy & Quick Installation
• Our battery is 100% compatible with the original battery and meets
• CE/FCC/ROHS/UL-certified standards. It is 100% new from the manufacturer and can support up to 1000 recharge cycles over the life of the battery
• Power Interface: Gold-plated connector points to ensure current transport excellently and serve stably.
• Enclosure: The enclosure is made of ABS + PC high-quality material, it has high temperature-resistant function to protect your laptop from overheating
• Battery Buckle: The battery buckle is closely connected to the laptop, and the metal interface is stably powered

HS04 / HS03 Battery Compatibility Laptop Model List:

1. Compatible Laptop Model List (Comprehensive)

Series	Specific Model Suffixes (Searchable Variants)
HP 240 / 250 / 255 G4 & G5	Business Models: HP 240 G4, 245 G4, 250 G4, 255 G4, 256 G4; HP 240 G5, 245 G5, 250 G5, 255 G5, 256 G5
HP Pavilion 15-ay / ba	15-ay000 to 15-ay199: 15-ay011nr, 15-ay013dx, 15-ay041wm, 15-ay103dx, , 15-ay018nr, 15-ay009dx; 15-ba000 to 15-ba099: 15-ba079dx, 15-ba010nr, 15-ba018wm, 15-ba015wm 15-ba000: 15-ba009dx, 15-ba079dx, 15-ba018wm
HP Pavilion 15-ac	15-ac000 to 15-ac199: 15-ac121dx, 15-ac151dx, 15-ac158nr, 15-ac163nr
HP Pavilion 15-af	15-af000 to 15-af199: 15-af131dx, 15-af113cl, 15-af123cl
HP 17-X / 17-Y Series	17-x000 & 17-y000: 17-x051nr, 17-x116dx, 17-y032cy, 17-bs011dx (Early versions)
HP 14-ac / af / am / an	14-ac000, 14-af000, 14-am000, 14-an000: 14-ac151nr, 14-ac101tu, 14-af110nr, 14-am052nr, 14-an013nr
HP 14g / 15g / 14q / 15q	Regional Models: 14g-ad000, 15g-ad000, 14q-aj000, 15q-aj000 (e.g., 15q-aj107tx)
⚠️ Absolute Incompatibility	NOT FOR: HP 250 G3 (Uses OA04). NOT FOR: HP 250 G6 (Uses JC04). NOT FOR: Pavilion 15-au (Internal BP02XL).
Visual Check	This battery is a Long Black Rod with 4 distinct rounded segments. It is External and removable.

2. HS04 / HS03 Battery Compatible Part Numbers (P/N List)

• • HP Spare Numbers: 807957-001 (HS04), 807956-001 (HS03), 807612-421, 807611-421, 807612-831, 807611-131
  • Regulatory Codes: HSTNN-LB6V, HSTNN-LB6U, HSTNN-PB6S, HSTNN-PB6T, HSTNN-DB7I, HSTNN-DB7J
  • Model Designation: HS04, HS03, HS04041-CL, HS03031-CL
  • Chassis ID: TPN-C125, TPN-C126, TPN-I119, TPN-I120
  • Engineering Code: M2Q95AA, TPN-C125, TPN-C126, TPN-I119, TPN-I120

Why Choose HTJ HS04 Battery?

• True 14.8V High-Voltage Output:
  Many generic HS04 batteries struggle to maintain consistent voltage, leading to “ghost” trackpad movements or Wi-Fi signal drops on the 15-ba series. HTJ uses high-tension 14.8V circuitry to ensure your laptop components receive clean, steady power even under maximum CPU load.
• Upgraded 4-Cell Configuration:
  While many laptops originally shipped with the 3-cell HS03 (31Wh) to save costs, HTJ’s HS04 uses a full 4-cell (41Wh). This provides 30% more capacity in the same footprint, effectively turning your budget laptop into a long-runtime workhorse.
• Anti-Wear Structural Rail:
  The battery bay on the HP 250 G4/G5 series is made of lightweight plastic that wears down over time. HTJ’s HS04 is molded with reinforced guide rails and a precision-tensioned spring latch to ensure a rock-solid fit that won’t disconnect if you bump the laptop.
• Grade A 18650 “Fresh-Batch” Cells:
  Unlike “New Old Stock” batteries that have lost chemical potency, HTJ manufactures the HS04 in monthly cycles. This ensures the 18650 cylindrical cells are at 100% capacity, offering 500-800 charge cycles before significant degradation begins.

How to Install Your New HS04 Battery?

The HP HS04 is an external snap-in battery. No tools or technical expertise are required for replacement.

⚠️ Pre-Installation Safety Check:

• Power Down: Completely shut down the laptop and disconnect the AC power adapter.
• Surface: Place the laptop upside down on a clean, soft surface to protect the screen lid from scratches.

HS04 Battery Step-by-Step Installation Guide:

1. Locate the Sliding Latches: On the bottom of the HP 250 G4/G5 or Pavilion 15-ay chassis, you will see two sliding switches: the Lock Latch (left) and the Release Latch (right).
2. Unlocking & Removing: * Slide the Lock Latch to the “Unlocked” icon, slide and hold the Release Latch toward the outer edge, while holding the release, lift the old HS04 battery out of the bay horizontally.
3. Inspect the Pin Connector: Check the 4-pin gold interface inside the battery bay. If you see dust or minor oxidation, gently wipe it with a dry microfiber cloth to ensure optimal conductivity for the 14.8V high-voltage stream.
4. Insert the New Battery: Align the HTJ HS04 battery with the guide rails. Slide it firmly into the bay toward the connector.
5. The “Secure Click”: Press down on the battery body until you hear a clear “Click”.
6. Safety Lock: Slide the Lock Latch back to the “Locked” position. Important: This prevents the battery from vibrating loose, which can cause the laptop to suddenly power off during mobile use.
7. Initial Calibration Cycle: Plug in your charger and allow the battery to reach 100% while the laptop is off. Then, run the laptop on battery power until it reaches 5%, and recharge to 100% to synchronize the HP BIOS power management.

💡 Pro Tip (Solving “Plugged In, Not Charging”):

If your laptop says “Plugged in, not charging” after installing the new HS04, it is usually due to a Static Power Loop or a Windows ACPI Driver conflict. Follow these steps to fix it:

1. Static Drain: Remove the battery and charger. Press and hold the Power Button for 30 seconds to drain residual electricity from the motherboard capacitors.
2. Driver Reset: Re-insert the battery, boot into Windows, go to Device Manager > Batteries, right-click “Microsoft ACPI-Compliant Control Method Battery” and select Uninstall.
3. Reboot: Restart the laptop with the charger connected. Windows will automatically re-install the correct driver and “handshake” with the new HTJ cells, enabling normal charging immediately.

FAQ (Frequently Asked Questions)

Q: My original battery was an HS03. Can I use this HS04?
A: Yes! The HS04 is the 4-cell version of the HS03. They are the same size and shape, but the HS04 provides longer battery life.

Q: Will this fit my HP 255 G5?
A: Absolutely. The HP 250 G4, 250 G5, 255 G4, and 255 G5 all use the HS04 battery.

Q: My battery says 14.4V, yours says 14.8V. Is it safe?
A: Yes. These are standard nominal voltage variations for 4-cell Li-ion batteries. Your HP charger is designed to work perfectly within this range.

Q: My laptop label says “HP 15 Notebook PC.” How do I know if this fits?
A: Look at the battery. If it is a removable cylinder on the back and your laptop model is something like 15-ayXXX or 15-baXXX, this HS04 is the correct match. If the battery is hidden inside, you likely need a different model.

Q: Can I upgrade from a 3-cell HS03 to this 4-cell HS04?
A: Yes! The HS04 is the premium version of the HS03. It has the same physical dimensions and fitment but contains an extra battery cell for roughly 25-30% more runtime.

Q: Why does the battery light on my HP 250 G5 flash orange?
A: This usually indicates the battery is in “Storage Mode” or there is a static charge in the motherboard. Follow our Pro Tip in the installation section to perform a Static Drain to reset the charging logic.

Q: Is 14.8V safe if my original was 14.4V?
A: Absolutely. 14.4V and 14.8V are both standard ratings for 4-cell Lithium-ion packs. Your laptop’s internal voltage regulator (VRM) is designed to handle this range without any risk.

Laptop Maintenance Tips:

1. New battery: For using a new battery, you’d better try a few cycles of discharging to 5%. then charging up to 95%. So that it can be activated completely
2. Overuse: Do not always run a battery to 0%, as this would shorten its usage life.
3. Charging sequence: When charging, first install the battery, then turn on the power. When fully charged, first cut off the power, then pull the power plug.
4. Long-term storage: Please store the unused battery fully charged. (Charge it once a month.) Do not store at low power to prevent reducing the lifespan of a battery
5. Charger: Do not replace the laptop adapter casually. If the original adapter cannot be applied due to malfunction or damage, please replace the models so as not to reduce the service life of the battery due to incompatibility.

【IMPORTANT】: Press [ Ctrl+F ] to find the laptop models.

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