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Black rectangular lithium polymer laptop battery with smooth matte finish

Dr. Battery

Dr. Battery MPL03319P-15 11.4V 4200mAh laptop battery

SKU CH-8CRV-9YX65

Replacement lithium-polymer battery for Asus K501 and VivoBook A501 series laptops, 11.4 V and 4200 mAh capacity

  • Battery typeLithium Polymer
  • Battery voltage rating11.4 V
  • Battery capacity4,200 mAh
  • Product colorBlack
  • Product typeBattery
  • Compatible withAsus K501 / K501L / K501 lb / K501LX / K501LX-DM014H / K501L
  • Replaces multiple Asus K501 and VivoBook models
  • 4 V 4200 mAh lithium-polymer cell delivers 48 Wh
  • Smart control chip enables quicker charging and longer discharge
  • Built-in protection guards against short circuit overheat and overload
  • New condition with one-year warranty from 2006-established brand

Replacement battery for Asus K501

The Dr. Battery MPL03319P-15 is a new lithium polymer pack rated at 11.4 V and 4200 mAh (48 Wh). It replaces the original Asus B31N1429 cell and matches the listed part numbers including 0B200-01460100. The unit is designed for owners of compatible K501, K501U, K501UX and VivoBook A501 models who need a direct swap.

Thermals noise and power draw in daily use

Lithium polymer chemistry keeps self-discharge low and delivers steady voltage across the discharge curve. The integrated smart control chip manages charging current to reduce heat build-up during recharge and limits power draw once the pack reaches full capacity. No moving parts mean silent operation and no additional acoustic load on the laptop.

Build quality and connector implications

The black housing follows the OEM form factor so it seats in the existing battery bay without modification. Built-in protection circuits guard against short circuit, overheat and overload conditions during everyday charging cycles. A one-year manufacturer warranty covers defects in materials and workmanship. Buyers whose laptops use a different voltage or connector layout cannot use this pack.

How it compares

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

Price $49.99
Pricier than about 82% of the 27,790 comparable items (median $30.99).

Specifications

Product
Brand nameDr. Battery
Model nameMPL03319P-15
Product colorBlack
Product typeBattery
Power
Battery typeLithium Polymer
Battery voltage rating11.4 V
Battery capacity4,200 mAh
Compatibility
Compatible withAsus K501 / K501L / K501 lb / K501LX / K501LX-DM014H / K501LX-DM094H / K501LX-NH52 / K501U / K501UB / K501UB-DM116D / K501UQ / K501UW / K501UX / K501UX-AH71 / K501UX-WH74
Asus VivoBook A501C1-Z1-C10 / A501L / A501LX / A501LX-DM023H
Original Battery Part Number :
0B20001460100 / 0B200-01460100 / B31N1429

Questions about this item

How do I install the MPL03319P-15 in my Asus K501UX and which step is most often missed?

Power off, unplug the charger, remove the bottom case screws, disconnect the old battery cable before lifting it out, then connect the new pack and reassemble; the step most often missed is disconnecting the battery cable first.

What maintenance or replacement will the 11.4V 4200mAh lithium-polymer pack need later?

The pack is sealed and maintenance‑free; after many charge cycles the capacity degrades and the whole unit must be replaced.

What limit appears first during sustained use of this 48Wh replacement battery?

The 4200mAh capacity determines runtime, so the pack will reach its discharge limit and require recharging before any thermal or voltage protection activates.

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