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Rectangular black lithium-polymer laptop battery pack

POWER-FENG

POWER-FENG 38Wh 7.6V C21N1515 battery for Asus VivoBook X756

SKU CH-EBQG-1Z4HG

A 38 Wh, 7.6 V lithium-polymer replacement battery compatible with Asus VivoBook X756 series laptops

  • Battery typeLaptop Batteries
  • Product typeBattery
  • Li-polymer chemistry keeps the pack light and slim
  • 38Wh capacity delivers reliable runtime for daily tasks
  • 6V output matches the original specification exactly
  • 5000mAh rating supports extended sessions away from power
  • Direct replacement for C21N1515 across the X756 series

Compatible Asus VivoBook Models

This replacement battery fits the Asus VivoBook X756 series including X756UA, X756UJ, X756UQ, X756UV, X756UX, X756UB, and X756UW. It replaces the original C21N1515 part number. The 38Wh lithium-polymer cell delivers 7.6V for direct installation.

Voltage And Capacity Limits

The pack is rated at 7.6V and 38Wh, equivalent to 5000mAh at the cell level. Your laptop's charging circuit manages the voltage range, so the replacement must match the original 7.6V specification exactly. A different voltage will prevent charging or damage the system.

Check Your Current Part Number

Before ordering, confirm the battery label on your existing unit reads C21N1515. Verify your laptop model appears in the supported list above. This battery is not for buyers who need a different voltage, a higher capacity, or a form factor for other Asus series.

How it compares

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

Price $64.99
Pricier than about 90% of the 27,790 comparable items (median $30.99).

Specifications

Product
Product typeBattery
Power
Battery typeLaptop Batteries

Questions about this item

Should I pick this 38Wh 7.6V battery or a different capacity for my X756?

The 38Wh 7.6V specification matches the original C21N1515 part, so this capacity is the correct replacement for the listed VivoBook X756 models.

What does the 38Wh rating mean for daily runtime on my X756?

At 38Wh and 5000mAh, the pack stores the same energy as the factory battery, giving comparable hours per charge under identical workloads.

Does the 7.6V output work with the X756 charging circuit?

Yes, 7.6V is the native voltage for the C21N1515 design used across the X756UA, X756UJ, X756UQ and related models.

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