ASUS C31N1811 Replacement Laptop Battery | 11.55V 50Wh 3-Cell for ZenBook 14 UX433FA UX433FN UX433FL BX433FN U4300 Deluxe 14 Series
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🔋 ASUS C31N1811 / C31PnJ5 / C31PoJ5 exact replacement — covers ZenBook 14 UX433FA, UX433FN, UX433FL, UX433FQ, BX433FN, RX433FN, U4300/U4300F/U4300FA/U4300FN, Deluxe 13/14 series
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⚡ 11.55V / 50Wh / 4,335mAh, 3-cell Li-ion polymer slim internal — verified against ASUS spare 0B200-03080000 / cell code 3ICP5/70/81
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⚠️ ZenBook 14 UX433 has two battery platforms — C31N1811 (11.55V/50Wh, this page) and C41N1828 (15.44V/60Wh, ROG Zephyrus S); verify original spare number before ordering
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🏭 Factory-direct wholesale — standing finished-goods inventory, tiered bulk pricing, 3–5 business day dispatch
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📋 CoC and cell lot documentation included with every bulk shipment
Описание продукта
The C31N1811 is the primary battery for ASUS’s ZenBook 14 UX433 series — and understanding exactly what “primary” means here matters for wholesale procurement on this platform.
The ZenBook 14 UX433 launched in 2019 with two distinct battery configurations. The C31N1811 (11.55V / 50Wh / 3-cell) covers the integrated-graphics and MX150 configurations sold under the UX433FA and UX433FN designations — the mainstream volume of the entire UX433 lineup. The second platform, C41N1828 (15.44V / 60Wh / 4-cell), covers the ROG Zephyrus S GX531 series — a completely different machine. The two batteries are not interchangeable under any circumstances.
For repair shops and distributors: when a UX433 work order arrives, verify the spare part number on the original battery. 0B200-03080000 = C31N1811, this page. 0B200-03020200 = C41N1828, ROG Zephyrus platform. There is no overlap. The ZenBook 14 UX433 uses C31N1811 as its standard battery across the vast majority of production configurations.
The UX433 Series — Why Demand Is Consistent
The UX433 was ASUS’s best-selling ZenBook 14 configuration in 2019. It hit the sweet spot between price and capability: slim NanoEdge display, Intel Core i5/i7, optional MX150/MX250 discrete GPU, under 1.2kg. It sold in volume across North America, Europe, and Asia. That installed base is now 5–6 years old — exactly the window where Li-ion polymer batteries have degraded to 60–70% of original capacity and users decide to replace rather than tolerate the reduced runtime.
The C31N1811 sits at 50Wh — 8Wh more than the 42Wh VivoBook batteries in the same ASUS catalog. On the UX433’s relatively efficient Intel platform, that 50Wh delivers 8–10 hours of mixed productivity use when new. End users replacing a degraded original battery notice the improvement immediately, which translates to positive repair outcomes and repeat business for repair shops.
The C31N1811 Naming Variants — Full Cross-Reference
Three alternate model designations appear across market listings for this battery:
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C31N1811 — primary ASUS internal designation
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C31PnJ5 — alternate production batch labeling
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C31PoJ5 — second alternate batch designation
All three resolve to spare number 0B200-03080000 in ASUS’s parts system. For procurement documentation, 0B200-03080000 is the canonical reference. The cell code 3ICP5/70/81 appears on the physical battery label and serves as the secondary verification reference.
Compatible Models (Verified Against Multiple Sources):
ASUS ZenBook 14 UX433FA Series: UX433FA · UX433FA-2B · UX433FA-2S · UX433FA-3B · UX433FA-3S · UX433FA-A5046R · UX433FA-A5090T · UX433FA-A5133T · UX433FA-A5941T · UX433FA-A6018T · UX433FA-A6019R · UX433FA-A6024T · UX433FA-A6025T · UX433FA-A6043T · UX433FA-A6061T · UX433FA-A6076T · UX433FA-A6094R · UX433FA-A6094T · UX433FA-A6096R · UX433FA-A6101T · UX433FA-A6102T · UX433FA-A6105T · UX433FA-A6106T · UX433FA-A6111R · UX433FA-A6111T · UX433FA-A6113T · UX433FA-A6116T · UX433FA-A6148R · UX433FA-A6149T · UX433FA-A6150T · UX433FA-A6168R · UX433FA-A6223T · UX433FA-A6342T · UX433FA-A6472T · UX433FA-A6473T · UX433FA-A6688T · UX433FA-DH74 · UX433FA-XH54
ASUS ZenBook 14 UX433FN Series: UX433FN · UX433FN-2B · UX433FN-2S · UX433FN-3B · UX433FN-3S · UX433FN-0032B8565U · UX433FN-0072B8565U · UX433FN-0082B8265U · UX433FN-0092S8265U · UX433FN-0112S8565U · UX433FN-0152B8565U · UX433FN-0162B8265U · UX433FN-0172S8265U · UX433FN-0232S8565U · UX433FN-A5021R · UX433FN-A5021T · UX433FN-A5037T · UX433FN-A5079T · UX433FN-A5080T · UX433FN-A5084T · UX433FN-A5085T · UX433FN-A5104R · UX433FN-A6023T · UX433FN-A6024T · UX433FN-A6032T · UX433FN-A6039T · UX433FN-A6052T · UX433FN-A6090T · UX433FN-A6096T · UX433FN-A6106T · UX433FN-A6108T · UX433FN-A6123T · UX433FN-A6125T · UX433FN-A6145T · UX433FN-A6157T · UX433FN-A6532T · UX433FN-BP8201T · UX433FN-BP8505T · UX433FN-IH74 · UX433FN-XB74
ASUS ZenBook 14 UX433FL / UX433FQ: UX433FL · UX433FQ
ASUS ZenBook 14 BX433 / RX433: BX433FN · RX433FA · RX433FN
ASUS ZenBook 14 Deluxe / U4300 Series: Deluxe 13 · Deluxe 14 · U4300 · U4300F · U4300FA · U4300FN
Совместимые номера деталей:
C31N1811 · C31PnJ5 · C31PoJ5 · 0B200-03080000 · 0B20003080000 · 3ICP5/70/81
Технические параметры
| Параметр | Спецификация |
|---|---|
| Модель батареи | C31N1811 (C31PnJ5 / C31PoJ5) |
| ASUS Spare Part No. | 0B200-03080000 / 0B20003080000 |
| Cell Code | 3ICP5/70/81 |
| Напряжение | 11.55V nominal (3S Li-ion — NOT compatible with C41N1828 15.44V platform) |
| Номинальная грузоподъемность | 50Wh / 4,335mAh (production range: 4,210–4,335mAh) |
| Конфигурация ячейки | 3-Cell (3S1P) Li-ion Polymer Slim Internal |
| Химия клеток | Lithium-Ion Polymer (Grade-A) |
| Platform Coverage | ZenBook 14 UX433 series (2019) — primary 3-cell platform for integrated/MX GPU configs |
| Защита BMS | Overcharge / Over-discharge / Overcurrent / Short Circuit / Overheat / Cell Balancing |
| Срок службы цикла | ≥ 500 cycles @ 80% capacity retention |
| Expected Runtime (New) | 8–10 hours (mixed productivity use, Intel Core i5/i7 platform) |
| Рабочая температура | Charge: 0–45°C · Discharge: -20–60°C |
| Температура хранения | -20°C to 50°C (recommended: 15–25°C) |
| Показатель самовыписки | ＜ 3% per month at recommended storage conditions |
| Shipping SOC | 40–60% (air transport compliant) |
| Сертификаты | CE / FCC / RoHS / UN38.3 |
| Гарантия | 12 Months (manufacturing defects) |
Нужен стабильный план поставок? Отправьте список моделей, количество и место назначения. Мы подтвердим сроки выполнения, способ доставки и необходимые документы перед оформлением заказа.
Особенности и преимущества
✅ 📋 The Definitive ZenBook 14 UX433 Battery — Not to Be Confused With C41N1828
The C31N1811 is the correct battery for the ZenBook 14 UX433 in the vast majority of configurations. The C41N1828 covers the ROG Zephyrus S GX531 — a different machine entirely. These two batteries are frequently confused in listings and search results. The verification is simple: spare number 0B200-03080000 on the original label = C31N1811 (ZenBook 14 UX433, this page). Spare number 0B200-03020200 = C41N1828 (ROG Zephyrus S GX531). Repair shops that communicate this check to customers before order placement eliminate the most common return cause on the ZenBook 14 battery market.
✅ ⚡ 50Wh — 8Wh Advantage Over Standard VivoBook Platform
At 50Wh, the C31N1811 delivers meaningfully more energy than the 42Wh batteries covering the VivoBook 14/15 consumer range. On the UX433’s Intel Core i5/i7 platform — which runs at 15W TDP under typical workloads — that 50Wh translates to 8–10 hours of productivity runtime on a new replacement. For end users who have been running a degraded 3-year-old battery, the improvement after replacement is dramatic. For repair shops, this means strong customer satisfaction on ZenBook 14 battery jobs and above-average likelihood of repeat referral business.
✅ 🔑 Three Part Number Designations — One SKU
C31N1811, C31PnJ5, and C31PoJ5 are all the same battery. Buyers searching any of the three will find the correct unit at spare number 0B200-03080000. This naming redundancy appears because ASUS uses multiple internal batch labeling conventions across production runs. For distributors maintaining catalog descriptions, listing all three designations captures search traffic from buyers who found the alternate name on their original battery label. We stock a single unified SKU covering all three designations.
✅ 🌍 UX433 Installed Base — Peak Replacement Window Globally
The ZenBook 14 UX433 was a globally distributed premium laptop from 2019. Unlike the ZenBook Pro UX501 (2015–2016, aging installed base) or the ZenBook 14 UX425/UM425 (2020–2021, still within original battery life for most users), the UX433 is currently in the 5–6 year range where Li-ion polymer degradation most commonly crosses the threshold that drives replacement decisions. For distributors timing their inventory investments, C31N1811 is at the peak of its demand curve — not declining, not yet saturated.
✅ 🏭 3-Cell Slim Internal — Repair Process Notes for High-Volume Shops
The UX433 chassis requires bottom panel removal — eight Phillips screws, no adhesive. The C31N1811 is a slim 3-cell pouch pack connecting via a ZIF-style connector on the upper edge of the battery bay. No ribbon cables cross the battery area on this chassis, keeping the replacement risk profile low. Estimated technician time is 8–12 minutes including panel removal and reinstallation. For repair shops processing ZenBook 14 volume, this is a straightforward job with no hidden complexity.
Упаковка и доставка
Сроки выполнения заказа и доставки
Товары в наличии: отправка в течение 3 дней.
Для стандартных моделей, имеющихся на складе.Заказы на серийное производство: отгрузка в течение 7 дней.
Для стандартных моделей, соответствующих подтвержденным техническим характеристикам и требованиям к упаковке.Индивидуальные заказы: отправка в течение 15 дней.
Для индивидуальной конфигурации ячеек, размера, проводов/разъемов, печатных плат/BMS, маркировки или упаковки.
Примечание: Окончательное время отправки зависит от общее количество, сложность модели, требования к упаковке и документы, подтверждающие соответствие требованиям к отгрузке.. Мы подтвердим предполагаемую дату отправки.ETD) после подтверждения заказа.
Авиаперевозки (срочные, небольшие объемы)
Морские перевозки (экономически выгодно для насыпных грузов)
Железнодорожный/автомобильный транспорт (в зависимости от пункта назначения)
Экспресс-каналы
Доступные документы: UN38.3 / Паспорт безопасности материала / Протокол транспортных испытаний (при наличии)
В зависимости от выбранного способа доставки может быть организована соответствующая упаковка и маркировка картонных коробок.
Доступны условия поставки EXW / FOB / CIF / DDP
Часто задаваемые вопросы
Q1: What is the difference between C31N1811 and C41N1828 — which one does the ZenBook 14 UX433 need?
The ZenBook 14 UX433 uses C31N1811 (11.55V / 50Wh / 3-cell, spare 0B200-03080000) as its standard battery. C41N1828 (15.44V / 60Wh / 4-cell, spare 0B200-03020200) covers the ROG Zephyrus S GX531 — a completely different machine. These two batteries are not interchangeable. The definitive check: open the back panel and read the spare part number on the original battery label. 0B200-03080000 = C31N1811, ZenBook 14 UX433. 0B200-03020200 = C41N1828, ROG Zephyrus S GX531. Do not order based on machine name alone — read the label.
Q2: What are C31PnJ5 and C31PoJ5 — are they the same as C31N1811?
Yes. C31PnJ5 and C31PoJ5 are alternate production batch designations for the same battery. All three model codes cross-reference to spare number 0B200-03080000 in ASUS’s parts system, and all three carry the same cell code 3ICP5/70/81 on the physical battery label. The naming variation reflects ASUS’s internal batch labeling conventions across production runs, not different battery specifications. For wholesale procurement documentation, use 0B200-03080000 as the canonical reference — it is consistent across all regional ASUS distribution systems.
Q3: Does C31N1811 cover the UX433FA, UX433FN, UX433FL, and UX433FQ variants?
Yes, all four series use C31N1811. ASUS maintained the same battery specification across the UX433 product range regardless of the suffix letter — FA (integrated graphics), FN (MX150/MX250 GPU), FL (select configurations), and FQ. The battery bay, connector, and BMS protocol are consistent throughout. The BX433FN and RX433FN commercial/corporate channel variants of the same chassis also use C31N1811. A single C31N1811 stock position covers the complete ZenBook 14 UX433 repair market.
Q4: My ZenBook 14 UX433 shows “plugged in, not charging” after installing a new C31N1811 — what is the likely cause?
This symptom on ZenBook 14 UX433 machines is most commonly an ASUS Battery Health Charging (BHC) software setting rather than a battery defect. ASUS ships these machines with BHC enabled by default, which caps charging at 80% SoC to extend long-term battery life. If a new battery reports “not charging” at 80%, open ASUS Battery Health Charging in MyASUS and verify the mode setting. Full capacity mode charges to 100%. If the symptom persists after disabling BHC, the next step is to disconnect the AC adapter, hold the power button for 15 seconds to drain residual EC voltage, then reconnect and attempt a fresh charge cycle. This resolves the majority of post-replacement charging issues on this platform.
Q5: What is the correct capacity for C31N1811 — some listings say 4,210mAh and others say 4,335mAh?
Both figures are correct within ASUS’s published tolerance range. The official ASUS spare part documentation lists the capacity range as 4,210–4,335mAh at 11.55V, both yielding 50Wh at their respective voltage-weighted values. The variation reflects normal cell lot production tolerance, not different battery versions. For wholesale incoming QC: use Wh (50Wh) as the acceptance criterion. A lab discharge at 0.5C on a genuine unit should return 47–53Wh at room temperature. Units consistently returning below 45Wh warrant rejection regardless of the mAh figure on the label.
Q6: What documentation and warranty terms apply to bulk C31N1811 orders?
Each bulk shipment includes a Certificate of Conformance specifying cell lot number, production date, capacity QC results verified at 0.5C discharge, and voltage verification parameters. Warranty is 12 months from shipment date covering manufacturing defects and capacity degradation below 70% of rated 50Wh. DOA claims require a photo of the defective battery label showing the spare part number (0B200-03080000) and a brief failure description — return shipment is not required below our defined batch replacement threshold. Replacements dispatch within 5 business days of claim confirmation. Mixed-SKU orders combining C31N1811 with C41N1828 or other ASUS ZenBook batteries are supported in a single purchase order with consolidated CoC documentation.
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