Sale!
CA54310-0081 3600mAh 3.85V Li-Polymer replacement battery for FUJITSU ARROWS NX9 F-52A 5G, front view on white background showing battery surface and connector flex cable

CA54310-0081 3600mAh 3.85V Li-Polymer Replacement Battery for FUJITSU ARROWS NX9 F-52A 5G (Japan Market)

Original price was: $18.99.Current price is: $14.99.

🔘 CA54310-0081 3600mAh 3.85V | 🔋 Li-Polymer | 📱 For FUJITSU ARROWS NX9 F-52A 5G (Japan Market / docomo)

8 in stock

No PayPal account? 💳 Pay with credit/debit card | 🛡️ PayPal Buyer Protected
SKU: CA54310-0081 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
Ireland, Austria, Belgium, Poland, Denmark, Switzerland, Portugal, Norway, Slovakia, Spain, Hungary, Italy, Czech Republic, Luxembourg, Netherlands, Sweden, Cyprus$8.0018–30 days
Croatia, Finland, Lithuania, Latvia, Slovenia$8.0030–50 days
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.

🔋 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

✅ 3600mAh Grade A Cells – Restores original battery capacity

✅ CE / RoHS / UN38.3 Certified – Fully safety tested

✅ For FUJITSU ARROWS NX9 F-52A – Designed specifically for Japan market docomo device

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

✅ Ships in 3-7 days with tracking – Fast and reliable delivery

🛡️ Shipping Protection Available at Checkout – For added peace of mind

✅ PayPal Buyer Protection included – Secure checkout

✅ 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: CA54310-0081
Battery capacity: 3600mAh (typical) / 3500mAh (rated) — 13.86Wh
Rated voltage: 3.85V
Charge limit voltage: 4.4V
Battery type: Li-Polymer / Li-ion
Compatible with: FUJITSU ARROWS NX9 F-52A 5G (docomo Japan)
Package include: 1 x battery
Revive your FUJITSU ARROWS NX9 F-52A with this CA54310-0081 3600mAh replacement battery. Released in late 2020, the ARROWS NX9 was one of the first Japan-market 5G smartphones featuring a 6.7-inch OLED display and Qualcomm Snapdragon 765G processor. After approximately 5 years of use, many ARROWS NX9 devices now show signs of battery aging — shorter runtime, unexpected shutdowns at 20-30% remaining charge, swelling, or failure to charge properly. This replacement battery restores the original 3600mAh capacity, bringing your device back to its factory performance. Built with grade A Li-Polymer cells and multi-layer safety protection against overcharge, over-discharge, short circuits, and over-temperature conditions. CE, RoHS, and UN38.3 certified for safety compliance.
For users experiencing battery problems: Common signs that your ARROWS NX9 needs a battery replacement include: battery drains faster than before (barely lasting through the afternoon), the phone shuts down even when the battery indicator shows 20-30% remaining, the phone takes longer to charge or stops charging entirely, the back cover appears swollen or bulging, or the phone gets unusually hot during normal use or charging. If any of these symptoms sound familiar, this CA54310-0081 replacement battery is the solution you need.
Why choose this replacement battery over Japanese repair services: Official repair shops and authorized service centers in Japan typically charge 6,000-10,000 yen ($40-65 USD) for ARROWS NX9 battery replacement, plus a waiting period of several days to weeks. Our replacement battery allows you to restore your device at a fraction of the cost. For users comfortable with DIY smartphone repair, professional installation videos are available on YouTube documenting the full disassembly of ARROWS NX9 (search for “arrows NX9 バッテリー交換”). The repair process involves heating the back cover to soften adhesive, removing approximately 12-15 screws, disconnecting the battery connector, and carefully removing the old battery. Replacement takes 30-45 minutes with proper tools. Alternatively, you can purchase this battery and bring it to a local smartphone repair shop in Japan for installation at their standard labor rate.
Safety and compatibility: This CA54310-0081 replacement battery is designed specifically for FUJITSU ARROWS NX9 F-52A, a docomo Japan exclusive. The device supports 5G connectivity and features a 6.7-inch OLED display with 2400×1080 resolution, 8GB RAM, 128GB storage, and a triple-camera setup. Please verify your battery model before ordering — CA54310-0081 is printed on your original battery. This battery is not compatible with other ARROWS models such as ARROWS 5G F-51A (CA54310-0080), ARROWS NX F-01K, or ARROWS Be F-04K, which use different CA54310 series variants. Professional installation is strongly recommended as the ARROWS NX9 has a sealed adhesive design. If attempting DIY replacement, watch a full teardown video in advance and use proper tools to avoid damaging the OLED display or the motherboard.
Battery care tips for extended lifespan: To maximize the service life of your new CA54310-0081 battery, follow these guidelines. Avoid completely draining the battery — recharge when the level drops below 20% rather than letting it shut down from empty. Avoid exposing the phone to high temperatures (direct sunlight, hot cars, or near heat sources) as heat is the primary enemy of lithium batteries. Use only the original charger that came with your ARROWS NX9 or a certified 5V/2A or USB-PD compatible charger. If you notice any swelling of the back cover, stop using the battery immediately. For best performance, allow 3-5 full charge cycles after installation for the battery to reach its optimal capacity.
Market context: Third-party retailers globally sell CA54310-0081 compatible batteries at various price points: aufladenakku.com (Germany) $27.99, akku-plus.com (Germany) €25.99 ($28 USD), batteriamercato.com (Italy) €22.95 ($25 USD), batteriesglobal.co.uk £22.99 ($29 USD). European competitors typically offer 1-year warranties, but their pricing is approximately 60-90% higher than our $14.99 sale price. Our 90-day warranty may be shorter, but our price advantage is significant — you get essentially the same grade A cells at a much lower cost.

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 “CA54310-0081 3600mAh 3.85V Li-Polymer Replacement Battery for FUJITSU ARROWS NX9 F-52A 5G (Japan Market)”

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 CA54310-0081 replacement battery is specifically designed for FUJITSU ARROWS NX9 F-52A 5G, a smartphone exclusively released for the Japanese market through NTT docomo. This CA54310-0081 battery for ARROWS NX9 F-52A is not compatible with other ARROWS series devices such as ARROWS 5G F-51A (which uses CA54310-0080), ARROWS NX F-01K, ARROWS Be F-04K, or ARROWS Tab series tablets. The ARROWS NX9 features a 6.7-inch OLED display, Qualcomm Snapdragon 765G processor, 8GB RAM, 128GB storage, and triple rear cameras (48MP + 8MP + 5MP). For FUJITSU ARROWS NX9 battery replacement, you must verify that your device model is F-52A (check in Settings > About Phone) and your original battery shows CA54310-0081 on its label. If you have a different ARROWS model or a different CA54310 series battery number (such as CA54310-0080, CA54310-0074, CA54310-0067), please contact us before ordering to ensure compatibility.

The CA54310-0081 3600mAh battery has a typical capacity of 3600mAh (3500mAh rated / 13.86Wh nominal / 13.47Wh rated) and a rated voltage of 3.85V with a charge limit voltage of 4.4V. According to docomo's official specifications, the original ARROWS NX9 battery provides standby times of approximately 110 hours on 5G and 120 hours on 4G LTE. This replacement battery restores those original specifications, providing all-day usage for typical users. For realistic performance expectations: with the 6.7-inch OLED display at moderate brightness, the CA54310-0081 battery should deliver 5-7 hours of screen-on time for mixed usage including web browsing, social media, and video streaming. For an ARROWS NX9 battery at 3600mAh capacity, you can expect to get through a full day of normal use (8am-10pm) with 20-30% remaining. For power users who constantly use 5G data, navigation, and gaming, you may still need a midday top-up, which is consistent with the original battery's performance when the device was new. This 3600mAh Li-Polymer battery for ARROWS NX9 is CE, RoHS, and UN38.3 certified with multi-layer safety protection.

Professional installation is strongly recommended for the CA54310-0081 battery. The FUJITSU ARROWS NX9 F-52A has a sealed adhesive design, similar to most modern smartphones, and does not have a user-accessible battery compartment. However, many Japanese users successfully perform DIY replacement following online repair guides. To replace ARROWS NX9 battery CA54310-0081 yourself, you will need: a heat gun or hair dryer (to soften the back cover adhesive at approximately 70°C), a Phillips #00 screwdriver (to remove approximately 12-15 small screws securing the internal shielding plate), a plastic pry tool or guitar pick (to carefully separate the back cover from the chassis without cracking the glass), and a pair of fine tweezers (to disconnect the battery connector from the motherboard). For CA54310-0081 battery installation for ARROWS NX9, follow these steps: 1) Power off the device completely; 2) Remove the SIM card tray; 3) Heat the edges of the back cover evenly for 2-3 minutes; 4) Insert a pry tool gently between the back cover and frame, working slowly around all edges; 5) Once the cover is removed, unscrew all visible screws; 6) Remove the metal shielding plate covering the battery connector; 7) Disconnect the old battery connector; 8) Carefully remove the old battery (it is held by adhesive underneath — use isopropyl alcohol to soften if necessary); 9) Install the new CA54310-0081 battery, reconnect the connector, and reassemble in reverse order. Japanese repair service centers typically charge 6,000-10,000 yen ($40-65 USD) for the complete replacement service including parts and labor. With our $14.99 battery, you can save significantly by performing the replacement yourself or by purchasing the battery and having a local repair shop install it for their standard labor fee (approximately 3,000-5,000 yen / $20-35 USD).

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