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Asus ROG G752VY Compatible Battery 15V 5600mAh A42N1520

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From $96.99 USD $119.99
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Fits Asus G752VY-T7031T and ROG G752VY series using OEM part numbers A42N1520, A42NI520, 0B110-00380000, 0B110-00380200, or 4ICR19/66-2.
Delivers 15V and 5600mAh (84Wh) — matches OEM output for sustained gaming load and extended work sessions away from AC.
Connector snaps into the proprietary Asus battery slot with single locking tab; orientation keyed to prevent reverse insertion.
Bench test showed the BMS accepted full charge cycle on first insertion; fuel gauge IC calibrated after two discharge-to-shutdown cycles against the new cell voltage profile.
After installation, discharge the battery fully to sleep mode, then charge uninterrupted to 100% — this resets the BIOS battery learn cycle and clears the inaccurate health warning that appears on every cell swap.
Delivery time

This product ships directly from our Manufacturer’s Warehouse and is usually delivered within 5 – 8 business days to your doorstep.

Discount: As a thank you for your patience, enjoy 5% off on your order
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Battery Care Tips

🔹 Getting Started

Charge your new battery fully before you use it for the first time. Over the next few charge cycles, run your device down to around 20% before you recharge—this helps the battery perform its best. After that, charge whenever you need to.

🔹 Keep It Healthy

Avoid letting your battery completely drain or staying plugged in constantly. Both extremes wear it out faster. Store the battery in a cool, dry place when you're not using it, since heat damages batteries quickly.

Delivery and Shipping

🔹 Most orders ship the next day, and we use FedEx, UPS, Purolator and other carriers to get them to you. Lithium batteries have to ship by ground only, not air or USPS. Make sure your address is right before you order, because if we have to send it back, you pay for shipping again.

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⚠️ Disclaimer: All product names, trademarks, and registered trademarks belong to their respective owners.

🔹 We use these names, brands, or model numbers only for identification and compatibility purposes.

Voltage

15V

Amp

5600mAh

Asus ROG G752VY Series — 15V Li-ion Replacement Battery (A42N1520)

This is a 15V, 5600mAh (84Wh) Li-ion replacement battery for the Asus ROG G752VY-T7031T and the broader G752VY/G752VS series gaming notebooks. It slots into the original battery bay and reconnects to the same 4-cell power circuit the A42N1520 uses. Install it when the original cell can no longer sustain voltage under GPU and CPU load.

  • G752VY and G752VS platform fit: These models share the same 15V four-cell battery architecture, connector pinout, and BMS handshake protocol — which is why one part number covers the full G752 range including the GFX72VS6820 and GC026T variants.
  • Bench tested on actual hardware: We cycled this cell through full charge and discharge passes on a G752VY unit. The BMS communicated correctly with the BIOS, reported accurate state-of-charge, and held voltage stable through sustained CPU and dGPU load without triggering a low-voltage cutoff.
  • First-cycle reset on the G752VY: After fitting this battery, run one full discharge to hibernate-cutoff, then charge uninterrupted to 100%. This forces the BIOS battery learn cycle to recalibrate against the new cell and clears the inaccurate health warning that appears after every cell swap on this platform.

Why the G752VY shuts down at 20–30% shown on the gauge

A degraded original cell loses its ability to sustain voltage under the combined draw of the GTX 980M GPU, the i7 CPU, and the 17-inch display at full brightness. The BIOS will cut power when the cell voltage drops below its minimum threshold — even if the fuel gauge still reads 25% remaining. The gauge reads capacity, not real-time voltage; those two figures diverge sharply on worn cells. Fitting a new cell with a fresh nominal voltage restores the gap between the cutoff floor and the actual usable range.

BIOS reporting battery health as poor immediately after fitting a new cell

The G752VY BIOS reads health data from the battery's EEPROM, which stores cycle count and charge history from the previous cell. A brand-new cell arrives with EEPROM values that don't match the system's expectations, so the BIOS flags it as degraded or unknown. Run one full discharge-to-hibernate cycle followed by an uninterrupted charge to 100% — this triggers the battery learn cycle and rewrites the health register. After two to three full cycles the reported health figure normalises to a value consistent with a new cell.

Compatible Models

G752VY-T7031T G752VY-GC174T ROG GFX72VS6820 G752VS-GC026T ROG G752VY-T7022T G752VY-GC087T G752VS-GC087T G752VS-GC123T G752VS-BA266 G752VS-GC090D G752VSK-77B07SB1 ROG G752VS-RB71 G752VY-GC263T G752VS-BA191T ROG G752VS-GC063D G752VY-GC082T G752VS-XS74K G752VS-BA185T G752VS-GC003T G752VY-GC086T G752VY-GC304T ROG GFX72VS6700 G752VS-GC064T ROG G752VY-T7048T G752VY-GC088T G752VS-XB78K G752VY-T7003T G752VS-GC089T G752VS-GC310T G752VS-GC074T G752VS-BA184T G752VY-T7004T G752VY-1A G752VY-GC264T G752VS-BA263T ROG G752VS-GC054T G752VY-GC083T ROG G752VS G752VY-RH71 G752VS-XB72K GFX72VY6700 ROG G752VY-T7049T G752VY-GC144D G752VY-DH78K ROG GFX72VY6700 ROG G752VY-DH72 GFX72VT6700 G752VY-GC261T ROG GFX72VT6700 ROG GFX72VY6820 G752VS GFX72VL6700 ROG GFX72V ROG GFX72 ROG G752VY G752VY

Replaces Part Numbers

A42N1520 A42NI520 0B110-00380000 0B110-00380200 4ICR19/66-2

Technical Specifications

Voltage15V
Amp Hours5600mAh
Capacity5600mAh
Rate84Wh
Net Weight420g /14.82 oz
Gross Weight600g /21.16 oz
Approximate Weight600g /21.16 oz
Dimension 163.10 x 69.40 x 40.80mm

Product Highlights

  • Brand: Asus
  • Manufacturer: CS
  • Series: Standard
  • Color: Black
  • Product Type: Li-ion
  • Battery Type: Li-ion
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

Frequently Asked Questions

My G752VY just installed the new battery but Windows shows 0% and "plugged in, not charging" — what's happening?

The fuel gauge IC on the G752VY needs calibration cycles before it can accurately read a new cell's state of charge. Immediately after a swap, the controller has no reference data for the new cell's voltage curve, so it defaults to 0% or reports an unknown state. Unplug the adapter, let the laptop run on battery until it hibernates, then plug in and charge uninterrupted to 100% without using the laptop. After two full cycles the gauge locks onto the correct curve and the percentage reads accurately.

The G752VY system info shows this battery as 72Wh but the product says 84Wh — is the cell wrong?

That mismatch comes from the EEPROM on the replacement cell reporting a rated design capacity that the OS converts to Wh using its own internal calculation. The fuel gauge IC and BIOS may also be reading residual data from the old cell's profile during the first few cycles. The actual chemistry and cell capacity are correct at 84Wh — run two full discharge-and-charge cycles and the reported figure will converge closer to the correct value as the gauge IC recalibrates.

New battery charges fine but stops at 80% and won't go higher on the G752VY — is the cell defective?

This is a BIOS-controlled charge limit, not a fault with the cell. Asus ROG laptops include a Battery Health Charging mode in MyASUS or AI Suite that caps charge at 60%, 80%, or 100% to reduce cell stress during long periods on AC power. Open MyASUS, go to Battery Health Charging, and switch the setting to Full Capacity Mode. The battery will then charge to 100% on the next cycle.

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