AEC634791-4S1P 4360mAh 15.4V Li-Polymer replacement battery for GPD Win Max 2, front view showing battery label and 4-cell connector
AEC634791-4S1P 4360mAh 15.4V replacement battery for GPD Win Max 2, back view showing model number AEC634791-4S1P, capacity 4360mAh, and voltage 15.4V on spec label

AEC634791-4S1P 4360mAh 15.4V Li-Polymer Replacement Battery for GPD Win Max 2 (67.144Wh 4‑Cell)

$99.99

🔘 AEC634791-4S1P 4360mAh 15.4V | 🔋 4‑Cell Li-Polymer | 📱 Compatible with GPD Win Max 2 Handheld Gaming PC

8 in stock

No PayPal account? 💳 Pay with credit/debit card | 🛡️ PayPal Buyer Protected
SKU: AEC634791-451P Category: Tags: , ,
📦 Shipping, Warranty & After-Sales Information (Click to expand ▼)

✅ Why Our Warranty Stands Out

Unlike marketplace sellers with short buyer protection windows, we handle claims directly — no automated disputes, no endless back-and-forth.

Compare✅ Qingsm Tech⚠️ eBay / AliExpress
Warranty Period90 days from delivery15-30 days from order confirmation
When It Starts📦 Upon delivery⚠️ Upon order confirmation (even before you receive it)
Claims HandlingWe do it directly — email usAutomated dispute system, seller dependent
After Window ExpiresStill can contact us for supportNo recourse, seller can ignore you

🔋 90-day warranty is the industry standard for replacement batteries. Batteries naturally lose capacity over time — this normal wear is not covered. Warranty applies to manufacturing defects only.

📦 Shipping Cost & Delivery Time (Economy Shipping from China)

📦 Note: Batteries are classified as hazardous goods and must be shipped via specialized channels, which may take slightly longer than standard couriers. Delivery times are estimates and may be affected by customs, weather, or other unforeseen circumstances. If your country is not listed in the table below, we are currently unable to ship batteries to that destination.

DestinationFreight (USD)Est. Delivery Time
United States$7.808–15 days
Canada$6.8018–30 days
Mexico$10.0030–60 days
Germany, France, United Kingdom, Greece$6.5018–30 days
Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Hungary, Ireland, Italy, Luxembourg, Netherlands, Norway, Poland, Portugal, Slovakia, Spain, Sweden, Switzerland$8.0018–30 days
Croatia, Finland, Lithuania, Latvia, Slovenia$8.0030–50 days
Bulgaria, Romania$14.0030–50 days
South Korea, Japan, Australia, New Zealand, Israel, Malaysia, Singapore, Thailand, Philippines, Kazakhstan$7.5018–30 days
United Arab Emirates, Saudi Arabia, Vietnam, Chile, Peru, Colombia, Brazil$18.0025–60 days

🇧🇷 Note for Brazil: Brazilian customs can occasionally cause delays of up to 80 days or more. And please indicate the recipient's CPF, as it is required for Brazilian customs and shipping. Thanks! We appreciate your understanding.

🇪🇺 Note for EU countries: Due to new EU customs regulations effective July 1, 2026, a flat tariff fee of $6.00 (approx. €5.20) applies to shipments to EU countries. This fee covers customs tariff, handling, and payment processing costs, and will be added at checkout. Thank you for your understanding.

🔋 Can't find your battery model? Use our FREE Battery Lookup Service – tell us your device and we'll find a match within 24 hours. 👉 battery.qingsm.tech/find-my-battery

Description

✅ Condition: Brand New – Never used, factory‑tested quality

✅ CE / RoHS / UN38.3 Certified – Meets international safety standards

✅ Built‑in Overcharge / Over‑discharge / Short Circuit Protection

✅ 500+ Cycle Life – Grade A cells for long‑term durability

✅ 90‑Day Warranty from delivery – Longer coverage than major platforms

✅ Ships in 3‑7 days with tracking

🛡️ Shipping Protection Available at Checkout

✅ PayPal Buyer Protection included

✅ 100% Compatibility Guarantee – If it doesn‘t fit, we‘ll refund you. No questions asked.

⚠️ Low Stock Alert: Only 8 left in stock. Order now to avoid waiting.

Battery model: AEC634791-4S1P (Replaces AEC634791-4S1P, 4ICP7/47/91)
Capacity: 4360mAh / 67.144Wh (four 4360mAh/3.85V cells in series — total capacity 4360mAh, not 5000mAh)
Rated voltage: 15.4V (3.85V × 4 cells in series)
Charge limit voltage: 17.6V (4.4V × 4)
Battery type: Li-Polymer (4‑cell series design, 4S1P configuration)
Compatible with: GPD Win Max 2 (2022‑2024 models, 10.1‑inch 2560×1600 IPS display, AMD Ryzen 7 6800U / 7840U / AI 9 HX 370 processor, up to 64GB LPDDR5X RAM, up to 4TB M.2 SSD, 65‑100W USB‑C PD charging)
Replaces OEM part number: AEC634791-4S1P
Package include: 1 x battery
Restore the original battery life of your GPD Win Max 2 handheld gaming PC with this AEC634791-4S1P 4360mAh replacement battery. The GPD Win Max 2 features a 10.1-inch 2560×1600 IPS screen, AMD Ryzen 7 6800U/7840U/AI 9 HX 370 processor, up to 64GB LPDDR5X RAM, and dual M.2 SSD slots (2280+2232) for up to 4TB total storage. This Li-Polymer battery uses a 4‑cell series design — four 4360mAh/3.85V cells connected in series to achieve a combined output of 15.4V, delivering the factory‑rated 67.144Wh total energy for extended gaming and productivity. For reference, third‑party retailers sell this battery for approximately $59 to $99.
Built with Grade A Li-Polymer cells and multi‑layer safety protection against overcharge, over‑discharge, short circuit, and overcurrent. CE, RoHS, and UN38.3 certified for safe transport and use. With a cycle life of 500+ full charge cycles, this replacement battery is designed for long‑term durability. The GPD Win Max 2 supports 100W USB‑C PD (Power Delivery) 3.0 fast charging — using a certified 100W PD charger, the 67.144Wh battery can be fully charged in approximately 2‑3 hours. The battery is user‑replaceable — the device has a screw‑secured bottom case, allowing for DIY replacement without soldering.
Compatibility Note: Please power down your device and check your original battery label before ordering. This battery is compatible with GPD Win Max 2 (all 2022‑2024 variants) only — NOT compatible with GPD Win Max (2020), Win Max 2 2025, Win 3, Win 4, or Pocket series. The device has no official IP water resistance rating, so water seal maintenance is not a concern after replacement.
Battery Care Tips: Avoid full discharge — keep battery level above 20%. Do not expose to high temperatures or direct sunlight. New batteries require 3‑5 full charge cycles to reach optimal capacity. For best 100W PD fast charging performance, use a certified USB‑C charger that supports Power Delivery 3.0 (100W recommended). If you don‘t use the device for a long time, store it at approximately 40%‑60% charge in a cool, dry place and recharge to storage level every 3 months. If you notice swelling or overheating, stop use immediately and dispose of properly at a designated battery recycling center.

Discover more from Battery.qingsm.tech

Subscribe to get the latest posts sent to your email.

Reviews

There are no reviews yet.

Be the first to review “AEC634791-4S1P 4360mAh 15.4V Li-Polymer Replacement Battery for GPD Win Max 2 (67.144Wh 4‑Cell)”

Your email address will not be published. Required fields are marked *
To receive the "Verified Owner" badge, please use the same email address you used when placing your order.

Frequently Asked Questions

The AEC634791-4S1P battery for GPD Win Max 2 is compatible with GPD Win Max 2 (2022‑2024 models) only. The GPD Win Max 2 features a 10.1‑inch 2560×1600 IPS screen (323 PPI), AMD Ryzen 7 6800U / 7840U / AI 9 HX 370 processor (up to 54W TDP), Radeon 680M / 780M graphics, up to 64GB LPDDR5X RAM, dual M.2 SSD slots (2280 + 2232, up to 4TB total), and dual USB‑C Thunderbolt 4 / USB4 ports supporting 100W PD charging. The original battery capacity is 67.144Wh (4360mAh). Important: This battery is NOT compatible with GPD Win Max (2020, uses 4545165-3S), Win Max 2 2025 (different battery model), Win 3, Win 4, or Pocket series. If your GPD Win Max 2 battery replacement is needed because the device drains quickly or won‘t hold a charge, this is the correct battery. Please verify your device model and check the battery model AEC634791-4S1P printed on your existing battery before purchasing.

The AEC634791-4S1P 4360mAh 15.4V battery has a typical capacity of 4360mAh (67.144Wh) and a pack output voltage of 15.4V. It is a 4‑cell Li-Polymer battery — four 4360mAh/3.85V single cells connected in series (15.4V = 3.85V × 4). Single‑cell charge limit voltage is 4.4V (pack max 17.6V). This AEC634791-4S1P Li-Polymer battery is built with Grade A cells and is CE, RoHS, and UN38.3 certified. The GPD Win Max 2 supports 100W USB‑C Power Delivery 3.0 fast charging via its Thunderbolt 4 / USB4 ports — using a certified 100W PD charger, the 67.144Wh battery can be fully charged in approximately 2‑3 hours. According to official specifications, the original battery provides 6‑10 hours of light usage (web browsing, office work) or 2‑4 hours of heavy gaming at 25‑35W TDP. With a cycle life of 500+ full charge cycles, this AEC634791-4S1P replacement battery is designed for long‑term durability. For best results, always use a certified USB‑C charger that supports Power Delivery 3.0 (100W recommended).

Installing the AEC634791-4S1P battery in GPD Win Max 2 is user‑replaceable. First, turn off the device and disconnect the charger. Remove the screws on the bottom case using a Phillips #0 or #00 screwdriver (there are typically 8‑10 screws around the perimeter). Gently pry the bottom cover open — it is not glued, but there may be mild adhesive strips. Locate the battery connector on the motherboard — it is a small 4‑pin or 5‑pin connector. Disconnect the old AEC634791-4S1P battery by gently pulling upward on the connector (do not pull on the wires). The battery is held in place with mild adhesive. Insert the new AEC634791-4S1P battery, ensure the connector is fully seated, replace the bottom cover, and tighten the screws. The device has no official IP water resistance rating, so no special sealing is required. Always dispose of old batteries properly at a designated battery recycling center. For calibration, fully charge the device for 2‑3 hours before first use.

Related products

✅ Ready to order?

This battery is in stock and ready to ship within 3-7 days. 90-day warranty included.

👉 Add to Cart Now