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Black rectangular three-cell lithium-ion laptop battery for HP Envy 13 series

NShi

NShi AD03XL laptop battery for HP Envy 13-AD 13T-AD 11.55V 51.4WHR 4450mAh 3-cell

SKU CH-YHNJ-WSA4J

Replacement 3-cell lithium-ion battery for HP Envy 13-AD and 13T-AD models, rated at 11.55V and 51.4Whr capacity

  • Battery type3 Cell Lithium-Ion
  • Battery voltage rating11.55 V
  • Battery capacity4450mah
  • Product colorBlack
  • Product typeBattery
  • Compatible withHP ENVY 13-AD, HP ENVY 13T-AD
  • Direct replacement for HP Envy 13-AD and 13T-AD models
  • 55V 51.4Wh capacity restores original runtime
  • 3-cell lithium-ion design fits factory battery bay
  • Tested for correct voltage, circuit protection and stable current
  • CE, FCC and RoHS certified for safety compliance

Compatible replacement for HP Envy 13-AD and 13T-AD

This 3-cell lithium-ion battery replaces OEM part numbers AD03XL, 921439-855, 921409-2C1 and HSTNN-DB8D. It is built for owners of HP Envy 13-AD or 13T-AD laptops who need a direct-fit power source. Buyers with other Envy models or different laptop brands cannot use this pack.

Thermal behaviour and power characteristics

The 11.55 V, 51.4 Whr design delivers 4450 mAh of capacity for typical daily workloads. Lithium-ion chemistry keeps self-discharge low during storage. Circuit protection guards against over-voltage, over-current and short-circuit events. No active cooling is required because the pack operates passively inside the chassis.

Build quality and connector implications

The black casing matches the original form factor so it seats securely in the battery bay. CE, FCC and RoHS certifications confirm compliance with safety and environmental standards. Each unit is tested for correct voltage and stable current before shipping. Users who need higher capacity or a different voltage must choose another model.

How it compares

Measured against everything we stock in Laptop Chargers & Batteries, at today’s prices. Recalculated every night.

Price $52.99
Pricier than about 84% of the 27,790 comparable items (median $30.99).

Specifications

Product
Brand nameGreenTech
Model nameAD03XL, 921439-855, 921409-2C1, HSTNN-DB8D
Product colorBlack
Product typeBattery
Power
Battery type3 Cell Lithium-Ion
Battery voltage rating11.55 V
Battery capacity4450mah
Compatibility
Compatible withHP ENVY 13-AD, HP ENVY 13T-AD

Questions about this item

How do I install the AD03XL battery in my HP Envy 13-AD and what step is often missed?

Remove the bottom cover screws, disconnect the old battery connector before lifting it out, then connect the new 3-cell pack and secure the cover — people often forget to unplug the connector first and risk a short.

What maintenance will the 4450mAh lithium-ion pack need over time?

No routine maintenance is required; the pack is sealed, but capacity will gradually fade after several hundred charge cycles and the battery will eventually need replacement.

What limit appears first during sustained heavy use of the 11.55V 51.4WHR battery?

The 51.4WHR capacity is the limiting factor — under continuous high load the charge depletes quickly and the laptop will throttle or shut down once the pack reaches its low-voltage cutoff.

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