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Hasee Z7-I7 8172 R2 Replacement Battery 14.8V 4000mAh

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From $90.99 USD $111.99
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Fits Hasee Z7-I7 8172 R2 and 61 compatible models; replaces OEM battery CS-CLP650NB.
14.8V 4000mAh lithium-ion cell delivers 59.2Wh to sustain full CPU and display load.
Connector seats flush into the bottom panel slot with single locking tab; orientation keyed.
We ran full discharge and recharge cycles on the target motherboard; BMS accepted handshake immediately.
After installation, discharge fully to hibernation cutoff then charge uninterrupted to 100% — this resets the BIOS battery learn cycle and clears inaccurate health warnings.
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

14.8V

Amp

4000mAh

Hasee Z7-I7 8172 R2 / Z8-KL7S2 Series — 14.8V Li-ion Replacement Battery

This is a 14.8V, 4000mAh (59.2Wh) Li-ion replacement battery for the Hasee Z7-I7 8172 R2 and its sibling models including the Z8-KL7S2, Z7-KP7G1, and Z7M-KP5DC. It targets the original cell directly when the factory battery degrades, stops holding charge, or fails to register with the BIOS. Dimensions are 221.64 x 99.10 x 15.10mm — verify this against your bay before ordering.

  • Z7 and Z8 series compatibility: These Hasee gaming notebook lines share the same 14.8V four-cell architecture and battery connector pinout. The BMS handshake protocol and charge controller expectations are consistent across the Z7 and Z8 variants listed, which is why a single cell covers the full range.
  • Bench tested on actual hardware: We cycled this cell through charge and discharge on compatible hardware, confirmed the BMS completed a full charge handshake without throwing a fault, and verified the protection circuit tripped correctly at the low-voltage cutoff threshold.
  • First-cycle calibration on the Z7-I7: After installation, run the laptop on battery until it hibernates at low charge, then charge uninterrupted to 100% without using the machine. This forces the BIOS battery learn cycle to reset against the new cell chemistry and clears the inaccurate health warning that appears after every battery swap on this platform.

BIOS reporting poor battery health immediately after fitting a new cell

The Hasee Z7-I7 BIOS stores battery health data in EEPROM tied to the original cell's charge history. When a new cell is fitted, that stored data does not match the fresh cell, so the BIOS flags it as degraded before a single cycle has run. This is not a fault with the replacement cell — it is a mismatch between old EEPROM records and the new cell's actual state. Running one full discharge-to-hibernate followed by a complete uninterrupted charge clears this and lets the firmware re-learn against the new chemistry. After two to three full cycles the health indicator normalises.

Laptop shuts down hard at 20–30% charge shown on screen

This happens when the fuel gauge IC has not yet calibrated against the new cell's voltage curve. The old calibration data predicts 20–30% remaining but the actual cell voltage has already dropped below the CPU and display load threshold — the system cuts out to protect hardware. It is not a defective battery. Run two full discharge cycles to hibernate cutoff, charging fully between each — the fuel gauge IC re-maps the voltage-to-percentage curve against the new cell. After calibration, the gauge tracks accurately and the shutdowns stop.

Compatible Models

Z7-I7 8172 R2 Z8-KL7S2 Z7-KP7G1 Z7M-KP5DC G8-KL7S2 Z7-i7D0 Z7-KP5S1 Z7-KP7EC Z7-I7 8172 S2 Z8-SP7S1 Z7-i78172 S2 Z7-I7B0 Z7M-i7D0 Z7-SP7S2 Z7-KP7D1 Z7-KP7GH Z7-I7 B0 Z8-I7 D0 Z7-SP5D1 Z7M-KP7GH Z7-i78172S1 Z7-SL7D3 Z7-SP7D1 Z7-SL7S4 Z7-i78172 S1 Z7-KP7Pro Z7-I7 8172 D1 Z8-SL7S3 Z7-KP7S1 Z7M-KP5GC Z7-SL7S3 Z7-I78172S2 Z7-Pro Z7-KP7GA Z7-I7 8172 D2 Z8-SL7S2 Z7-KP7GS Z7M-KP5GH Z7M-I78172D1 Z7-KP5D1 Z7-KP7DC Z7-I7 D0 Z8-I78172D1 Z7-KP7GT Z7-I7R0 Z7M-I7R0 Z7-D3 Z7-I7 R0 Z7-SP7S1 Z7-KP7 Pro Z7-i7 8172 S1 Z8-I78172S1 Z7-KP7GC Z7-i7 8172 Z7-i78172 D1 Z7-KP7G2 Z7-i7 Z7-I78172R2 Z7-KP7D2 Z7-i78172 D2 Z7-i78172 R2 Z7-I78172D2 Z7M-KP7GC Z8 Z7

Technical Specifications

Voltage14.8V
Amp Hours4000mAh
Capacity4000mAh
Rate59.2Wh
Net Weight329g /11.61 oz
Gross Weight469g /16.54 oz
Approximate Weight469g /16.54 oz
Dimension 221.64 x 99.10 x 15.10mm

Product Highlights

  • Brand: Hasee
  • 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

Why does my Hasee Z7-I7 show "0% available (plugged in, not charging)" right after I fitted the new battery?

The fuel gauge IC is reading EEPROM data from the old cell and cannot reconcile it with the new cell's voltage. The battery is charging — the gauge just has no valid reference point yet. Plug in and leave it to charge uninterrupted to 100% without powering on. After one full charge-to-discharge cycle the IC re-initialises and the percentage reads correctly.

The system info screen shows the wrong Wh rating — it says 47Wh but the replacement is 59.2Wh. Is the battery faulty?

The Wh value in system info is pulled from EEPROM data the BIOS cached from the original cell — it does not update automatically when a new cell is installed. The actual cell is 59.2Wh as specified. Run the BIOS battery learn cycle — one full discharge to hibernate, then a full uninterrupted charge — and the firmware will overwrite the cached value with the correct rating.

My Hasee Z7-I7 charge stops at 80% and refuses to go higher — is that a fault with the replacement cell?

This is a BIOS-controlled charge limit, not a cell fault. Hasee's firmware on several Z7 and Z8 models includes a battery conservation mode that caps charging at 80% to reduce cell stress during daily use. Check the Hasee Control Centre software or the BIOS power settings for a "battery threshold" or "conservation mode" toggle. Disable it and the battery will charge to 100%.

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