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Black rectangular lithium-polymer laptop battery with label showing 7.4V 6840mAh 50Wh

Dr. Battery

Dr. Battery DRPROAS266P-01 laptop battery 7.4V 6840mAh 50Wh

SKU CH-TPRH-VR0F6

7.4V 6840mAh lithium-polymer replacement battery for Asus ZenBook UX31A and UX31E series

  • Battery typeLithium Polymer
  • Battery voltage rating7.4 V
  • Battery capacity6,840 mAh
  • Product colorBlack
  • Product typeBattery
  • Compatible withAsus ZenBook U31A: AB71 | C4027H | C4027H-BE | C4029H | C403
  • Compatible with Asus ZenBook UX31A and UX31E series
  • 4 V lithium-polymer chemistry delivers 6840 mAh capacity
  • Built-in short-circuit, overheat and overload protection
  • 50 Wh energy rating supports extended mobile use
  • Replaces original Asus C21-UX31, C22-UX31 and C23-UX31 batteries

Replacement for Asus ZenBook UX31A and UX31E

This Dr. Battery Professional Series unit replaces the original C21-UX31, C22-UX31 and C23-UX31 packs in Asus ZenBook UX31A and UX31E models. It uses lithium-polymer cells rated at 7.4V and 6840mAh for 50Wh total capacity. The black battery fits the listed sub-models including AB71, DB71, DH51 and RY008V variants.

Built-in protection circuits

Short-circuit, overheat and overload safeguards are integrated into the pack to protect the laptop and the cells during charging and discharging. The one-year manufacturer warranty covers defects in materials and workmanship. No additional software or accessories are bundled with the battery itself.

Verify model and original part number

Confirm the laptop model appears in the compatibility list and match the original battery number to C21-UX31, C22-UX31 or C23-UX31 before ordering. The battery is not compatible with the ZenBook UX31LA series. Check voltage and physical layout against the old pack to ensure correct fit.

How it compares

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

Price $48.99
Pricier than about 81% of the 27,790 comparable items (median $30.99).

Specifications

Product
Brand nameDr. Battery
Model nameDRPROAS266P-01
Product colorBlack
Product typeBattery
Power
Battery typeLithium Polymer
Battery voltage rating7.4 V
Battery capacity6,840 mAh
Compatibility
Compatible withAsus ZenBook U31A: AB71 | C4027H | C4027H-BE | C4029H | C4031H | C4032H | C4033H | C4037H | C4037P | C4038H | C4046H | C4046P | C4059H-BE | DB51 | DB71 | DB72 | DH51 | DH51-CA | DH51-CB | DH71 | DH71-CA | DH71-CB | DS51T-CA | E7202F | MPR3-H | R4002G | R4002P | R4003H | R4003P | R4005H | R4005P | R4005 V | R4005X | R4011X | R4035H | R4035P | R4042P | R4047P | R4048H | R4066H | R5006H | R5102H | R7202F | XB52 | XB72 | XB73 |
Asus ZenBook U31E: DH52 | DH53 | DH72 | DH72-RG | MA1 | MA1S | MA3 | RY003 V | RY008 V | RY008 V-BE | RY009 V | RY010 V | RY010 V-BE | RY010X | RY012 V | RY015 V | RY018X

Questions about this item

How long before the 6840 mAh lithium-polymer cells need replacing?

The 50 Wh pack is rated for typical daily cycling; expect several hundred full charge cycles before capacity drops noticeably.

What limits runtime first when the 7.4 V battery runs continuously?

The 6840 mAh capacity sets the energy ceiling; sustained loads drain the 50 Wh reserve until the protection circuit shuts the pack down.

Does the pack get hot or noisy during all-day use?

Lithium-polymer cells run silently; built-in overheat protection prevents excessive temperature rise under normal loads.

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