Compatible with HP

HP Envy 13-AD159TX Replacement Battery - Replaces AD03XL

$36.77In stock

Why this battery

Fits HP Envy 13-AD159TX and related models; replaces OEM part AD03XL and alternate codes 921409-271, 921409-2C1, 921439-855.
11.55V at 4350mAh means this cell matches the original power draw across CPU and display without voltage sag during multitask load.
Connector is a standard three-pin JST-type plug; seats into the battery slot with no locking tab — slides straight in and sits flush against the chassis wall.
We bench-tested the BMS handshake on insertion; the fuel gauge IC accepted the new cell without fault codes and began tracking charge cycles from zero.
After install, run one full discharge to hibernation cutoff then charge uninterrupted to 100% — this resets the BIOS battery learn cycle and clears the inaccurate health warning that appears after every cell swap.

11.55V4350mAhLi-Polymer

Fits 225 models · Replaces 6 part numbers

Ship from

Ships from Hong Kong Warehouse · Delivery in 28-45 days

$36.77Quantity 1

About this replacement

HP Envy 13-AD159TX Series — 11.55V Li-Polymer Replacement Battery (AD03XL)

This is an 11.55V, 4350mAh (50.24Wh) lithium-polymer replacement battery for the HP Envy 13-AD series ultrabook. It fits the Envy 13-AD159TX, AD028UR, AD044TX, AD035TX, and over 220 additional Envy 13-AD variants. OEM cross-references include AD03XL, 921409-271, 921409-2C1, 921439-855, and HSTNN-DB8D.

Envy 13-AD series compatibility: These models share the same three-cell Li-Polymer architecture, 11.55V nominal rail, and connector pinout. The BMS handshake protocol and EEPROM data structure are consistent across the AD series, so the same cell works across all listed variants without firmware conflict.
Bench tested on actual hardware: We ran this cell on an Envy 13-AD unit and confirmed the BMS negotiated charging current correctly, EEPROM data transferred without error codes, and the fuel gauge IC initialised on first boot without triggering a fault state.
First-cycle calibration on the Envy 13-AD: After installing, run one full discharge to hibernate-cutoff, then charge uninterrupted to 100%. This resets the BIOS battery learn cycle and clears the inaccurate health warning that commonly appears after every cell swap on this platform.

BIOS reporting poor battery health immediately after swap on the Envy 13-AD

The Envy 13 stores battery health metrics in the EEPROM of the original cell. When a new cell is fitted, the BIOS reads no prior cycle history and flags the battery as degraded or unknown. This is a data gap, not a fault with the replacement cell. Running the BIOS battery learn cycle — one full discharge to hibernate-cutoff followed by an uninterrupted charge to 100% — writes new baseline data and clears the warning. After two to three full cycles, the health indicator should return to normal.

Envy 13-AD shutting down at 20–30% charge shown on screen

This happens when the fuel gauge IC has not yet calibrated against the new cell's actual voltage curve. Under combined CPU and display load, the laptop hits a voltage cliff the old calibration data did not account for, and the system triggers an emergency shutdown before the displayed percentage reaches zero. The fix is to complete two or three full discharge-to-hibernate and full-recharge cycles so the fuel gauge IC maps the new cell accurately. After calibration, shutdowns at falsely high percentages stop — confirm the cell is holding above 10.8V under load before ruling out a deeper BMS issue.

Compatibility

Check your original model and part number before ordering.

Compatible brands

Fit Model

Envy 13-AD159TXEnvy 13-AD028UREnvy 13-AD044TXEnvy 13-AD035TXEnvy 13-AD003NFEnvy 13-AD008NXEnvy 13-AD014UREnvy 13-AD101NFEnvy 13-AD105NWEnvy 13-AD112TXEnvy 13-AD147TUEnvy 13-ad010ngEnvy 13-AD123TXEnvy 13-AD032UREnvy 13-AD169TXEnvy 13-AD039UREnvy 13-ad1xxEnvy 13-AD060TXEnvy 13-AD005NSEnvy 13-AD012UREnvy 13-AD017TXEnvy 13-AD104NIAEnvy 13-AD140TXEnvy 13-AD134TXEnvy 13-AD028TXEnvy 13-AD162TXEnvy 13-AD022TXEnvy 13-ad101ngEnvy 13-AD033TXEnvy 13-AD009NBEnvy 13-AD015NWEnvy 13-AD101UREnvy 13-AD106NCEnvy 13-AD114UREnvy 13-AD148TUEnvy 13-AD125TXEnvy 13-AD179TXEnvy 13-AD100NTEnvy 13-AD180TXEnvy 13-AD037TXEnvy 13-AD002NAEnvy 13-AD006NPEnvy 13-AD013NCEnvy 13-AD018NAEnvy 13-AD142TXEnvy 13-AD136TXENVY 13-AD100TXEnvy 13-AD024TXEnvy 13-AD164TXEnvy 13-AD021TXEnvy 13-ad105ngEnvy 13-AD045TXEnvy 13-AD004NOEnvy 13-AD009TXEnvy 13-AD015UREnvy 13-AD106NXEnvy 13-AD115UREnvy 13-AD149TXEnvy 13-AD127TXEnvy 13-AD151TXEnvy 13-AD100NIAEnvy 13-AD182TXEnvy 13-AD038UREnvy 13-AD001NOEnvy 13-AD007NOEnvy 13-AD013UREnvy 13-AD105NEEnvy 13-AD102NEEnvy 13-AD144TXEnvy 13-ad006ngEnvy 13-AD138TXEnvy 13-ad106ngEnvy 13-AD170TXEnvy 13-AD031TXEnvy 13-AD166TXEnvy 13-AD020TXEnvy 13-AD040TXEnvy 13-AD004NXEnvy 13-AD010TXEnvy 13-AD016UREnvy 13-AD103NSEnvy 13-AD107NOEnvy 13-AD117UREnvy 13-AD130TXENVY 13-AD109TXEnvy 13-AD155TXEnvy 13-AD029TXEnvy 13-AD043TXEnvy 13-AD035UREnvy 13-AD003NEEnvy 13-AD007TXEnvy 13-AD014TXEnvy 13-AD100UREnvy 13-AD105NOEnvy 13-AD111UREnvy 13-AD146TXEnvy 13-ad009ngEnvy 13-AD122TXENVY 13-ad113txEnvy 13-AD172TXEnvy 13-AD031UREnvy 13-AD168TXEnvy 13-AD019TXEnvy 13-ad100Envy 13-AD055TXEnvy 13-AD005NNEnvy 13-AD012TXEnvy 13-AD017NCEnvy 13-AD104NFEnvy 13-AD108NWEnvy 13-AD119TXEnvy 13-AD134NDENVY 13-AD106TXEnvy 13-AD160TXEnvy 13-AD023TXEnvy 13-AD049TXEnvy 13-AD034TXEnvy 13-AD003NKEnvy 13-AD008TXEnvy 13-AD015NAEnvy 13-AD101NOEnvy 13-AD114TXEnvy 13-AD147TXEnvy 13-ad080nzEnvy 13-AD177TXEnvy 13-AD100NWEnvy 13-AD180NZEnvy 13-AD039TXEnvy 13-AD056TUEnvy 13-AD005TXEnvy 13-AD013NAEnvy 13-AD017UREnvy 13-AD104NJEnvy 13-AD109NOEnvy 13-AD141TXEnvy 13-ad002ngEnvy 13-AD135TXENVY 13-AD101TXEnvy 13-AD027TXEnvy 13-AD163TXEnvy 13-AD021UREnvy 13-ad102ngEnvy 13-AD047TXEnvy 13-AD004NJEnvy 13-AD009NWEnvy 13-AD015TXEnvy 13-AD102NKEnvy 13-AD106NIEnvy 13-AD115TXEnvy 13-AD148TXENVY 13-AD107TXEnvy 13-AD126TXEnvy 13-AD150TXEnvy 13-AD100NOEnvy 13-AD181TXEnvy 13-AD036TXEnvy 13-AD002TXEnvy 13-AD006NWEnvy 13-AD013NNEnvy 13-AD018NFEnvy 13-AD105NCEnvy 13-AD143TXEnvy 13-ad004ngEnvy 13-AD137TXEnvy 13-ad104nsEnvy 13-AD026TXEnvy 13-AD165TXEnvy 13-AD020UREnvy 13-ad140ngEnvy 13-AD042TXEnvy 13-AD004NSEnvy 13-AD010NBEnvy 13-AD016TXEnvy 13-AD103NNEnvy 13-AD106UREnvy 13-AD117TXEnvy 13-AD130NGENVY 13-AD108TXEnvy 13-AD128TXEnvy 13-AD152TXEnvy 13-AD100NFEnvy 13-AD191NDEnvy 13-AD038TXEnvy 13-AD001TXEnvy 13-AD007NTEnvy 13-AD014NAEnvy 13-AD018UREnvy 13-AD105NFEnvy 13-AD110TXEnvy 13-AD145TXEnvy 13-AD139TXEnvy 13-ad150nzEnvy 13-AD171TXEnvy 13-AD029UREnvy 13-AD167TXEnvy 13-AD019UREnvy 13-ad142ngEnvy 13-AD050TXEnvy 13-AD004TXEnvy 13-AD012NAEnvy 13-AD017NAEnvy 13-AD118UREnvy 13-AD133NDENVY 13-AD103TXEnvy 13-ad009nsEnvy 13-AD173CLEnvy 13-AD108URENVY 13-AD104TXENVY 13-AD102TXEnvy 13-AD104UREnvy 13-AD109NSEnvy 13-ad003ngEnvy 13-AD102URENVY 13-AD105TXEnvy 13-AD018TXEnvy 13-ad141ngEnvy 13-AD105UREnvy 13-AD124TXEnvy 13-AD109UREnvy 13-ad007ngEnvy 13-AD103UREnvy 13-AD107UREnvy 13-AD003TXEnvy 13-ad030ngEnvy 13-ad000

Part Number

AD03XL921409-271921409-2C1921439-855AD03051XLHSTNN-DB8D

Specifications

Battery typeLi-Polymer

Voltage11.55V

Capacity4350mAh

Wh50.24Wh

Dimensions282.44 x 87.72 x 6.32mm

Weight

Connector

ChemistryLi-Polymer

Shipping and safety

UN number:

Standard carrier options available

UN38.3 documentation pending

Return warning

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